Komatsu Hydraulic Excavators PC340-6K, PC340LC-6K, PC340NLC-6K, PC340LC-7, PC340NLC-7, PC340LC-7K, PC340NLC-7K Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC340-6K, PC340LC-6K, PC340NLC-6K, PC340LC-7, PC340NLC-7, PC340LC-7K, PC340NLC-7K, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Hydraulic Excavators PC340-6K, PC340LC-6K, PC340NLC-6K, PC340LC-7, PC340NLC-7, PC340LC-7K, PC340NLC-7K workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 4,161 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
UEBM001501 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Shop Manual.pdf
UEBM000901 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Shop Manual.pdf
EEBM000804 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Shop Manual.pdf
UEN00262-00 - Hydraulic Excavator GALEO PC340LC-7, PC340NLC-7 Shop Manual.pdf
UEPB005302 - Hydraulic Excavator PC340LCD-7K, PC340NLCD-7K Parts Book.pdf
EEAM008000 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Operation & Maintenance Manual.pdf
UEAM001500 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Operation & Maintenance Manual.pdf
UEAM001505 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Operation & Maintenance Manual.pdf
MAIN SECTIONS
EEAM008000 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Operation & Maintenance Manual....2
EEBM000804 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Shop Manual....260
UEAM001500 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Operation & Maintenance Manual....998
COVER....998
FOREWORD....1000
FOREWORD....1001
SAFETY INFORMATION....1002
NOISE....1004
VIBRATION....1004
INTRODUCTION....1005
DIRECTIONS OF MACHINE....1005
PRODUCT INFORMATION....1006
MACHINE SERIAL NUMBER PLATE AND ITS LOCATION....1006
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION....1006
SERVICE METER LOCATION....1007
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR....1007
MACHINE SERIAL PLATE....1008
CONTENTS....1009
SAFETY....1014
SAFETY INFORMATION....1015
POSITION FOR ATTACHING SAFETY LABELS....1017
POSITION FOR ATTACHING SAFETY LABELS....1017
SAFETY LABELS....1018
SAFETY INFORMATION....1025
SAFETY RULES....1025
IF ABNORMALITIES ARE FOUND....1025
WORKING WEAR AND PERSONAL PROTECTIVE ITEMS....1025
FIRE EXTINGUISHER AND FIRST AID KIT....1025
SAFETY EQUIPMENT....1026
KEEP MACHINE CLEAN....1026
KEEP OPERATOR'S COMPARTMENT CLEAN....1026
LEAVING OPERATOR'S SEAT WITH LOCK....1026
HANDRAILS AND STEPS....1027
MOUNTING AND DISMOUNTING....1028
NO PERSONS ON ATTACHMENTS....1028
BURN PREVENTION....1028
FIRE PREVENTION AND EXPLOSION PREVENTION....1029
ACTION IF FIRE OCCURS....1030
WINDSHIELD WASHER FLUID....1030
FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION....1030
ATTACHMENT INSTALLATION....1030
ATTACHMENT COMBINATIONS....1031
CAB WIDOW GLASSES....1031
UNAUTHORIZED MODIFICATIONS....1031
SAFETY AT JOBSITE....1031
WORKING ON LOOSE GROUND....1031
DISTANCE TO HIGH VOLTAGE CABLES....1032
ENSURE GOOD VISIBILITY....1032
VENTILATION FOR ENCLOSED AREA....1033
SIGNALMAN'S SIGNAL AND SIGNS....1033
EMERGENCY EXIT FROM OPERATOR'S CAB....1033
ELECTROMAGNETIC INTERFERENCE....1033
ASBESTOS DUST HAZARD PREVENTION....1034
SAFETY MACHINE OPERATION....1035
STARTING ENGINE....1035
CHECKS BEFORE STARTING ENGINE....1035
SAFETY RULES FOR STARTING ENGINE....1036
STARTING ENGINE IN COLD WEATHER....1036
OPERATION....1037
CHECKS AFTER STARTING ENGINE....1037
SAFETY RULES FOR CHANGING MACHINE DIRECTIONS....1037
SAFETY RULES FOR TRAVELLING....1038
TRAVELLING ON SLOPES....1039
OPERATIONS ON SLOPES....1040
PROHIBITED OPERATIONS....1040
OPERATIONS ON SNOW....1042
PARKING MACHINE....1042
TRANSPORTATION....1043
SHIPPING THE MACHINE....1043
BATTERY....1044
BATTERY HAZARD PREVENTION....1044
STARTING ENGINE WITH BOOSTER CABLES....1045
TOWING....1046
SAFETY RULES FOR TOWING....1046
LIFTING OBJECTS WITH BUCKET....1047
SAFETY RULES FOR LIFTING OBJECTS....1047
SAFETY MAINTENANCE INFORMATION....1048
WARNING TAG....1048
KEEP WORK PLACE CLEAN AND TIDY....1048
APPOINT LEADER WHEN WORKING WITH OTHERS....1048
STOP ENGINE BEFORE CARRYING OUT MAINTENANCE....1049
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING....1050
PROPER TOOLS....1050
ACCUMULATOR....1051
PERSONNEL....1051
ATTACHMENTS....1051
WORK UNDER THE MACHINE....1051
NOISE....1052
WHEN USING HAMMER....1052
WELDING WORKS....1052
REMOVING BATTERY TERMINALS....1052
SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION....1053
DO NOT DISASSEMBLE RECOIL SPRINGS....1053
SAFETY RULES FOR HIGH-PRESSURE OIL....1053
SAFETY HANDLING HIGH-PRESSURE HOSES....1054
WASTE MATERIALS....1054
AIR CONDITIONER MAINTENANCE....1054
COMPRESSED AIR....1054
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....1055
OPERATION....1058
GENERAL VIEW....1059
GENERAL VIEW OF MACHINE....1059
GENERAL VIEW CONTROLS AND GAUGES....1060
EXPLANATION OF COMPONENTS....1061
MACHINE MONITOR....1061
BASIC CHECK ITEMS....1064
SWITCHES....1086
CONTROL LEVERS, PEDALS....1093
CEILING WINDOW....1096
FRONT WINDOW....1097
EMERGENCY EXIT FROM OPERATOR'S CAB....1102
DOOR LOCK....1102
CAP, COVER WITH LOCK....1103
HOT AND COOL BOX....1104
CAB RADIO....1104
MAGAZINE BOX....1104
ASHTRAY....1105
HANDLING AIR CONDITIONER....1106
CAR RADIO....1119
FUSE....1120
FUSIBLE LINK....1121
CONTROLLER (COMPUTER)....1122
TOOLBOX....1122
GREASE GUN HOLDER....1122
REFUELLING PUMP....1123
HANDLING THE ACCUMULATOR....1123
MACHINE OPERATIONS AND CONTROLS....1125
BEFORE STARTING ENGINE....1125
STARTING ENGINE....1138
AFTER STARTING ENGINE....1142
IN COLD AREAS (AUTOMATIC WARMING-UP OPERATION)....1146
STOPPING THE ENGINE....1150
CHECK AFTER SHUTTING OFF ENGINE....1150
MACHINE OPERATION....1151
STEERING THE MACHINE....1155
SWINGING....1157
WORK EQUIPMENT CONTROLS AND OPERATIONS....1158
OPERATING WORKING MODE....1159
PROHIBITED OPERATIONS....1160
GENERAL OPERATION INFORMATION....1162
TRAVELLING ON SLOPES....1163
ESCAPE FROM MUD....1165
RECOMMENDED APPLICATIONS....1166
REPLACEMENT AND INVERSION OF BUCKET....1168
PARKING MACHINE....1171
CHECK AFTER FINISHING WORK....1172
LOCKING....1173
TRANSPORTATION....1174
TRANSPORTATION PROCEDURE....1174
LOADING AND UNLOADING WITH TRAILER....1175
LOADING....1176
SECURING MACHINE....1178
UNLOADING....1180
LIFTING MACHINE....1182
STANDARD SPECIFICATION MACHINE....1182
COLD WEATHER OPERATION....1184
COLD WEATHER OPERATION INFORMATION....1184
FUEL AND LUBRICANTS....1184
COOLING SYSTEM COOLANT....1184
BATTERY....1185
AFTER DAILY WORK COMPLETION....1186
AFTER COLD WEATHER SEASON....1187
LONG TERM STORAGE....1188
BEFORE STORAGE....1188
DURING STORAGE....1188
AFTER STORAGE....1189
STARTING MACHINE AFTER LONG-TERM STORAGE....1189
TROUBLESHOOTING....1190
AFTER RUNNING OUT OF FUEL....1190
PHENOMENA THAT ARE NOT FAILURES....1190
TOWING THE MACHINE....1191
LIGHTWEIGHT TOWING HOOK....1191
PRECAUTIONS ON PARTICULAR JOBSITES....1192
DISCHARGED BATTERY....1193
REMOVAL AND INSTALLATION OF BATTERY....1194
BATTERY CHARGES....1194
STARTING ENGINE WITH BOOSTER CABLES....1195
OTHER TROUBLE....1197
ELECTRICAL SYSTEM....1197
CHASSIS....1198
ENGINE....1199
ELECTRONIC CONTROL SYSTEM....1201
MAINTENANCE....1204
MAINTENANCE INFORMATION....1205
SERVICE METER READING....1205
KOMATSU GENUINE REPLACEMENT PARTS....1205
KOMATSU GENUINE LUBRICANTS....1205
WINDSHIELD WASHER FLUID....1205
FRESH AND CLEAN LUBRICANTS....1205
CHECK DRAINED OIL AND USED FILTER....1205
FUEL STRAINER....1205
WELDING INSTRUCTIONS....1205
DO NOT DROP THINGS INSIDE MACHINE....1206
DUSTY JOBSITE....1206
AVOID MIXING LUBRICANTS....1206
LOCKING THE INSPECTION COVERS....1206
HYDRAULIC SYSTEM - AIR BLEEDING....1206
HYDRAULIC HOSE INSTALLATION....1207
CHECKS AFTER INSPECTION AND MAINTENANCE WORKS....1207
SELECTING FUEL AND LUBRICANTS TO MATCH AMBIENT TEMPERATURE....1207
LUBRICANTS, COOLANT AND FILTERS....1208
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....1208
OIL....1208
FUEL....1208
COOLING SYSTEM COOLANT....1209
GREASE....1209
CARRYING OUT KOWA (Komatsu Oil Wear Analysis)....1210
OIL AND FUEL STORAGE....1210
FILTERS....1211
EXPLANATION OF LUBRICATION CHART DECAL....1212
ELECTRIC SYSTEM MAINTENANCE....1213
HANDLING HYDRAULIC SYSTEM....1214
WEAR PARTS LIST....1215
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE....1216
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS....1216
TIGHTENING TORQUE SPECIFICATIONS....1219
TIGHTENING TORQUE LIST....1219
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....1220
SAFETY CRITICAL PARTS....1220
MAINTENANCE SCHEDULE....1221
MAINTENANCE SCHEDULE CHART....1221
Initial 250 Hours Maintenance (Only after the first 250 hours)....1221
Initial 1000 Hours Maintenance (Only after the first 1000 hours)....1221
When Required....1221
Checks Before Starting....1221
Every 100 Hours Maintenance....1222
Every 250 Hours Maintenance....1222
Every 500 Hours Maintenance....1222
Every 1000 Hours Maintenance....1222
Every 2000 Hours Maintenance....1223
Every 4000 Hours Maintenance....1223
Every 5000 Hours Maintenance....1223
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER....1224
REPLACING HYDRAULIC ELEMENT....1224
CHANGING OIL IN HYDRAULIC TANK....1224
REPLACING ADDITIONAL FILTER ELEMENT FOR BREAKER....1224
MAINTENANCE PROCEDURE....1225
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)....1225
REPLACE FUEL FILTER CARTRIDGE....1259
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)....1225
CHECK ENGINE VALVE CLEARANCE, ADJUST....1271
WHEN REQUIRED....1226
CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....1226
CLEAN INSIDE OF COOLING SYSTEM....1231
CHECK AND TIGHTEN TRACK SHOE BOLTS....1234
CHECK AND ADJUST TRACK TENSION....1235
CHECK ELECTRICAL INTAKE AIR HEATER....1237
REPLACE BUCKET TEETH....1238
ADJUST BUCKET CLEARANCE....1238
CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....1240
CHECK AND ADJUST AIR CONDITIONER (IF EQUIPPED)....1241
WASHING WASHABLE FLOOR....1242
METHOD OF SETTING MACHINE ANGLE....1244
BLEEDING AIR FROM HYDRAULIC SYSTEM....1245
METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT....1247
CHECK BEFORE STARTING....1248
EVERY 100 HOURS MAINTENANCE....1248
LUBRICATING....1248
EVERY 250 HOURS MAINTENANCE....1250
CHECK OIL LEVEL IN MACHINERY CASE, ADD OIL....1250
LUBRICATING....1250
CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....1252
CHECK LEVEL OF BATTERY ELECTROLYTE....1253
LUBRICATE SWING CIRCLE (2 POINTS)....1255
CHECK, ADJUST TENSION OF AIR CONDITIONER COMPRESSOR BELT....1256
EVERY 500 HOURS MAINTENANCE....1257
LUBRICATING....1257
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE....1259
REPLACE FUEL FILTER CARTRIDGE....1260
CHECK SWING PINION GREASE LEVEL, ADD GREASE....1261
CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS AND CONDENSER FINS....1261
CLEAN INTERNAL AND EXTERNAL AIR FILTERS OF AIR CONDITIONER SYSTEM....1262
REPLACE BREATHER ELEMENT IN HYDRAULIC TANK....1263
EVERY 1000 HOURS MAINTENANCE....1265
REPLACE HYDRAULIC FILTER ELEMENT....1265
CHANGE OIL IN SWING MACHINERY CASE....1266
CHECK OIL LEVEL IN DAMPER CASE, ADD OIL....1267
CHECK ALL TIGHTENING PARTS OF TURBOCHARGER....1267
CHECK PLAY OF TURBOCHARGER ROTOR....1267
REPLACE CORROSION RESISTOR CARTRIDGE....1267
CHECK FAN BELT TENSION AND REPLACE FAN BELT....1268
EVERY 2000 HOURS MAINTENANCE....1269
CHANGE OIL IN FINAL DRIVE CASE....1269
CLEAN HYDRAULIC TANK STRAINER....1270
CLEAN ENGINE BREATHER....1270
CLEAN, CHECK TURBOCHARGER....1271
CHECK ALTERNATOR, STARTING MOTOR....1271
CHECK ENGINE VALVE CLEARANCE, ADJUST....1271
CHECK VIBRATION DAMPER....1271
EVERY 4000 HOURS MAINTENANCE....1272
CHECK WATER PUMP....1272
EVERY 5000 HOURS MAINTENANCE....1273
CHANGE OIL IN HYDRAULIC TANK....1273
SPECIFICATIONS....1274
SPECIFICATIONS....1275
EXPLANATION OF LIFTING CAPACITY CHART....1277
ATTACHMENTS AND OPTIONS....1280
GENERAL PRECAUTIONS....1281
PRECAUTIONS RELATED TO SAFETY....1281
PRECAUTIONS WHEN INSTALLING ATTACHMENTS....1283
HANDLING BUCKET WITH HOOK....1284
CHECKING FOR DAMAGE TO BUCKET WITH HOOK....1284
PROHIBITED OPERATIONS....1284
PRECAUTIONS DURING OPERATIONS....1284
MACHINES READY FOR ATTACHMENTS....1285
EXPLANATION OF COMPONENTS....1285
STOP VALVE....1285
SELECTOR VALVE....1286
ATTACHMENT CONTROL PEDAL....1286
LOCK PIN....1286
ADDITIONAL FILTER FOR BREAKER....1287
ACCUMULATOR....1287
HYDRAULIC CIRCUIT....1288
SWITCHING HYDRAULIC CIRCUIT....1288
ADJUSTING OIL FLOW....1288
SWITCHING BETWEEN BREAKER AND GENERAL ATTACHMENT....1288
HYDRAULIC CIRCUIT CONNECTION....1289
PATH OF OIL....1289
REPLACE ADDITIONAL BREAKER FILTER ELEMENT....1290
ATTACHMENT MOUNTING/DISMOUNTING PROCEDURE....1291
OPERATION....1293
LONG-TERM STORAGE....1295
SPECIFICATIONS....1295
ATTACHMENT GUIDE....1296
COMBINATIONS OF WORK EQUIPMENT....1296
SELECTION OF TRACK SHOES....1298
METHOD OF SELECTING SHOES....1298
SELECTION OF BUCKET TEETH....1299
METHOD OF SELECTING TEETH....1299
Use of vertical pin teeth....1299
Use of horizontal pin teeth....1299
Use of long-life teeth....1299
Self-sharpening teeth (both vertical pin type and horizontal pin type)....1299
STANDARDS FOR SELECTING VERTICAL PIN TYPE AND HORIZONTAL PIN TYPE TEETH....1299
HANDLING OF RUBBER PAD SHOE AND ROAD LINER....1300
WORKING ENVIRONMENT....1300
WORKING CONDITIONS....1300
STORAGE AND MAINTENANCE....1301
EXTENT OF DAMAGE TO RUBBER....1301
CHECK ROAD LINER (MACHINES EQUIPPED WITH ROAD LINER)....1301
HANDLING TRAPEZOIDAL BUCKET....1302
HOW TO PERFORM EXCAVATION....1302
HANDLING EXTENSION ARM....1303
HANDLING CLAMSHELL BUCKET....1304
PRECAUTIONS WHEN USING....1304
LUBRICATING....1304
RECOMMENDED ATTACHMENT OPERATIONS....1305
HYDRAULIC BREAKER....1305
MAIN APPLICATIONS....1305
PROHIBITED WORKS....1307
GREASING POSITION FOR HYDRAULIC BREAKER....1309
UEAM001505 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Operation & Maintenance Manual....1314
FOREWORD....1316
FOREWORD....1317
SAFETY INFORMATION....1318
NOISE....1320
VIBRATION....1320
INTRODUCTION....1321
DIRECTIONS OF MACHINE....1321
PRODUCT INFORMATION....1322
MACHINE SERIAL NUMBER PLATE AND ITS LOCATION....1322
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION....1322
SERVICE METER LOCATION....1323
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR....1323
MACHINE SERIAL PLATE....1324
SAFETY....1330
SAFETY INFORMATION....1331
POSITION FOR ATTACHING SAFETY LABELS....1333
POSITION FOR ATTACHING SAFETY LABELS....1333
SAFETY LABELS....1334
SAFETY INFORMATION....1341
SAFETY RULES....1341
IF ABNORMALITIES ARE FOUND....1341
WORKING WEAR AND PERSONAL PROTECTIVE ITEMS....1341
FIRE EXTINGUISHER AND FIRST AID KIT....1341
SAFETY EQUIPMENT....1342
KEEP MACHINE CLEAN....1342
KEEP OPERATOR'S COMPARTMENT CLEAN....1342
LEAVING OPERATOR'S SEAT WITH LOCK....1342
HANDRAILS AND STEPS....1343
MOUNTING AND DISMOUNTING....1344
NO PERSONS ON ATTACHMENTS....1344
BURN PREVENTION....1344
FIRE PREVENTION AND EXPLOSION PREVENTION....1345
ACTION IF FIRE OCCURS....1346
WINDSHIELD WASHER FLUID....1346
FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION....1346
ATTACHMENT INSTALLATION....1346
ATTACHMENT COMBINATIONS....1347
CAB WINDOW GLASSES....1347
UNAUTHORIZED MODIFICATIONS....1347
SAFETY AT JOBSITE....1347
WORKING ON LOOSE GROUND....1347
DISTANCE TO HIGH VOLTAGE CABLES....1348
ENSURE GOOD VISIBILITY....1348
VENTILATION FOR ENCLOSED AREA....1349
SIGNALMAN'S SIGNAL AND SIGNS....1349
EMERGENCY EXIT FROM OPERATOR'S CAB....1349
ELECTROMAGNETIC INTERFERENCE....1349
ASBESTOS DUST HAZARD PREVENTION....1350
SAFETY MACHINE OPERATION....1351
STARTING ENGINE....1351
CHECKS BEFORE STARTING ENGINE....1351
SAFETY RULES FOR STARTING ENGINE....1352
STARTING ENGINE IN COLD WEATHER....1352
OPERATION....1352
CHECKS AFTER STARTING ENGINE....1352
SAFETY RULES FOR CHANGING MACHINE DIRECTIONS....1353
SAFETY RULES FOR TRAVELLING....1353
TRAVELLING ON SLOPES....1354
OPERATIONS ON SLOPES....1355
PROHIBITED OPERATIONS....1355
OPERATIONS ON SNOW....1357
PARKING MACHINE....1357
TRANSPORTATION....1358
SHIPPING THE MACHINE....1358
BATTERY....1358
BATTERY HAZARD PREVENTION....1358
STARTING ENGINE WITH BOOSTER CABLES....1359
TOWING....1360
SAFETY RULES FOR TOWING....1360
LIFTING OBJECTS WITH BUCKET....1361
SAFETY RULES FOR LIFTING OBJECTS....1361
SAFETY MAINTENANCE INFORMATION....1362
WARNING TAG....1362
KEEP WORK PLACE CLEAN AND TIDY....1362
APPOINT LEADER WHEN WORKING WITH OTHERS....1362
STOP ENGINE BEFORE CARRYING OUT MAINTENANCE....1363
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING....1364
PROPER TOOLS....1364
ACCUMULATOR....1365
PERSONNEL....1365
ATTACHMENTS....1365
WORK UNDER THE MACHINE....1365
NOISE....1366
WHEN USING HAMMER....1366
WELDING WORKS....1366
REMOVING BATTERY TERMINALS....1366
SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION....1367
DO NOT DISASSEMBLE RECOIL SPRINGS....1367
SAFETY RULES FOR HIGH-PRESSURE OIL....1367
SAFETY HANDLING HIGH-PRESSURE HOSES....1368
WASTE MATERIALS....1368
AIR CONDITIONER MAINTENANCE....1368
COMPRESSED AIR....1368
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....1369
OPERATION....1370
GENERAL VIEW....1371
GENERAL VIEW OF MACHINE....1371
GENERAL VIEW CONTROLS AND GAUGES....1372
EXPLANATION OF COMPONENTS....1373
MACHINE MONITOR....1373
BASIC OPERATION OF MACHINE MONITOR....1374
BASIC CHECK ITEMS....1376
CAUTION ITEMS....1378
EMERGENCY STOP ITEMS....1381
METER DISPLAY PORTION....1383
MONITOR SWITCHES....1387
WORKING MODE SELECTOR SWITCH (BASIC SWITCH)....1388
AUTO-DECELERATION SWITCH....1389
TRAVEL SPEED SELECTOR SWITCH....1390
WIPER SWITCH....1391
WINDOW WASHER SWITCH....1391
MAINTENANCE SWITCH....1392
SELECT SWITCH....1394
BACK SWITCH....1395
UP SWITCH, DOWN SWITCH....1395
INPUT CONFIRMATION SWITCH....1395
LIQUID CRYSTAL MONITOR ADJUSTMENT SWITCH....1396
SWITCHES....1398
STARTING SWITCH....1398
FUEL CONTROL DIAL....1399
CIGARETTE LIGHTER....1399
SWING LOCK SWITCH....1400
LAMP SWITCH....1400
ALARM BUZZER STOP SWITCH....1400
MACHINE PUSH-UP SWITCH....1401
HORN SWITCH....1401
KNOB SWITCH....1401
ROOM LAMP SWITCH....1402
EMERGENCY PUMP DRIVE SWITCH....1402
SWING BRAKE CANCEL SWITCH....1402
EMERGENCY FUEL SOLENOID DRIVE SWITCH....1403
LOWER WIPER SWITCH....1403
REVOLVING WARNING LAMP SWITCH....1403
HEATED OPERATOR SEAT SWITCH....1404
CONTROL LEVERS, PEDALS....1405
SAFETY LOCK LEVER....1405
TRAVEL LEVERS....1406
WORK EQUIPMENT CONTROL LEVER....1407
CEILING WINDOW....1408
FRONT WINDOW....1409
EMERGENCY EXIT FROM OPERATOR'S CAB....1414
DOOR LOCK....1414
CAP, COVER WITH LOCK....1415
METHOD OF OPENING AND CLOSING CAP WITH LOCK....1415
METHOD OF OPENING AND CLOSING COVER WITH LOCK....1415
HOT AND COOL BOX....1416
CAB RADIO....1416
MAGAZINE BOX....1416
ASHTRAY....1417
HANDLING AIR CONDITIONER....1418
GENERAL LOCATIONS OF CONTROL PANEL....1418
METHOD OF OPERATION....1422
PRECAUTIONS WHEN USING AIR CONDITIONER....1429
CHECK, MAINTAIN MACHINE EQUIPPED WITH AIR CONDITIONER....1429
OTHER FUNCTIONS....1430
CAR RADIO....1431
FUSE....1432
FUSE CAPACITIES AND CIRCUIT NAMES....1433
FUSIBLE LINK....1433
CONTROLLER (COMPUTER)....1434
TOOLBOX....1434
GREASE GUN HOLDER....1434
REFUELLING PUMP....1435
HANDLING THE ACCUMULATOR....1435
RELEASING PRESSURE IN CONTROL CIRCUIT ON MACHINE EQUIPPED WITH ACCUMULATOR....1436
MACHINE OPERATIONS AND CONTROLS....1437
BEFORE STARTING ENGINE....1437
WALK-AROUND CHECKS....1437
CHECKS BEFORE STARTING....1438
ADJUST BEFORE OPERATION....1443
SEAT BELT....1446
OPERATIONS BEFORE STARTING ENGINE....1447
STARTING ENGINE....1450
NORMAL STARTING....1450
STARTING ENGINE IN COLD WEATHER....1451
AFTER STARTING ENGINE....1454
BREAKING-IN THE NEW MACHINE....1454
WARMING-UP OPERATION....1455
IN COLD AREAS (AUTOMATIC WARMING-UP OPERATION)....1458
STOPPING THE ENGINE....1463
CHECK AFTER SHUTTING OFF ENGINE....1463
MACHINE OPERATION....1464
PREPARATIONS FOR MOVING THE MACHINE OFF....1464
MOVING MACHINE FORWARD....1465
MOVING MACHINE BACKWARD....1466
STOPPING MACHINE....1467
STEERING THE MACHINE....1468
Steering....1468
SWINGING....1470
WORK EQUIPMENT CONTROLS AND OPERATIONS....1471
OPERATING WORKING MODE....1472
PROHIBITED OPERATIONS....1473
OPERATIONS USING SWING FORCE....1473
OPERATIONS USING TRAVEL FORCE....1473
OPERATIONS USING HYDRAULIC CYLINDER STROKE ENDS....1473
OPERATIONS USING BUCKET DROPPING FORCE....1474
OPERATIONS USING MACHINE DROPPING FORCE....1474
DIGGING HARD ROCKY GROUND....1474
SUDDEN LEVER SHIFTING HIGH SPEED TRAVEL....1474
GENERAL OPERATION INFORMATION....1475
TRAVELLING....1475
HIGH SPEED TRAVEL....1475
PERMISSIBLE WATER DEPTH....1475
TRAVELLING ON SLOPES....1476
TRAVELLING DOWNHILL....1477
ENGINE STOPPED ON SLOPE....1477
PRECAUTIONS ON SLOPES....1477
ESCAPE FROM MUD....1478
STUCK ONE SIDE OF TRACK....1478
STUCK BOTH SIDES OF TRACKS....1478
RECOMMENDED APPLICATIONS....1479
BACKHOE WORK....1479
SHOVEL WORK....1479
DITCHING WORK....1479
LOADING WORK....1480
REPLACEMENT AND INVERSION OF BUCKET....1481
REPLACEMENT....1481
INVERSION....1483
PARKING MACHINE....1484
CHECK AFTER FINISHING WORK....1485
LOCKING....1486
TRANSPORTATION....1487
TRANSPORTATION PROCEDURE....1487
LOADING AND UNLOADING WITH TRAILER....1488
LOADING....1489
SECURING MACHINE....1491
UNLOADING....1493
LIFTING MACHINE....1495
STANDARD SPECIFICATION MACHINE....1495
COLD WEATHER OPERATION....1497
COLD WEATHER OPERATION INFORMATION....1497
FUEL AND LUBRICANTS....1497
COOLING SYSTEM COOLANT....1497
BATTERY....1498
AFTER DAILY WORK COMPLETION....1499
AFTER COLD WEATHER SEASON....1500
LONG TERM STORAGE....1501
BEFORE STORAGE....1501
DURING STORAGE....1501
AFTER STORAGE....1502
STARTING MACHINE AFTER LONG-TERM STORAGE....1502
TROUBLESHOOTING....1503
AFTER RUNNING OUT OF FUEL....1503
PHENOMENA THAT ARE NOT FAILURES....1503
TOWING THE MACHINE....1504
LIGHTWEIGHT TOWING HOOK....1504
PRECAUTIONS ON PARTICULAR JOBSITES....1505
DISCHARGED BATTERY....1506
REMOVAL AND INSTALLATION OF BATTERY....1507
BATTERY CHARGES....1507
STARTING ENGINE WITH BOOSTER CABLES....1508
OTHER TROUBLE....1510
ELECTRICAL SYSTEM....1510
CHASSIS....1511
ENGINE....1512
ELECTRONIC CONTROL SYSTEM....1514
MAINTENANCE....1518
MAINTENANCE INFORMATION....1519
SERVICE METER READING....1519
KOMATSU GENUINE REPLACEMENT PARTS....1519
KOMATSU GENUINE LUBRICANTS....1519
WINDSHIELD WASHER FLUID....1519
FRESH AND CLEAN LUBRICANTS....1519
CHECK DRAINED OIL AND USED FILTER....1519
FUEL STRAINER....1519
WELDING INSTRUCTIONS....1519
DO NOT DROP THINGS INSIDE MACHINE....1520
DUSTY JOBSITE....1520
AVOID MIXING LUBRICANTS....1520
LOCKING THE INSPECTION COVERS....1520
HYDRAULIC SYSTEM - AIR BLEEDING....1520
HYDRAULIC HOSE INSTALLATION....1521
CHECKS AFTER INSPECTION AND MAINTENANCE WORKS....1521
SELECTING FUEL AND LUBRICANTS TO MATCH AMBIENT TEMPERATURE....1521
LUBRICANTS, COOLANT AND FILTERS....1522
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....1522
OIL....1522
FUEL....1522
COOLING SYSTEM COOLANT....1523
GREASE....1523
CARRYING OUT KOWA (Komatsu Oil Wear Analysis)....1523
OIL AND FUEL STORAGE....1525
FILTERS....1525
EXPLANATION OF LUBRICATION CHART DECAL....1526
ELECTRIC SYSTEM MAINTENANCE....1528
HANDLING HYDRAULIC SYSTEM....1528
WEAR PARTS LIST....1529
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE....1530
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS....1530
TIGHTENING TORQUE SPECIFICATIONS....1533
TIGHTENING TORQUE LIST....1533
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....1534
SAFETY CRITICAL PARTS....1534
MAINTENANCE SCHEDULE....1535
MAINTENANCE SCHEDULE CHART....1535
Initial 250 Hours Maintenance (Only after the first 250 hours)....1535
Initial 1000 Hours Maintenance (Only after the first 1000 hours)....1535
When Required....1535
Checks Before Starting....1535
Every 100 Hours Maintenance....1536
Every 250 Hours Maintenance....1536
Every 500 Hours Maintenance....1536
Every 1000 Hours Maintenance....1536
Every 2000 Hours Maintenance....1537
Every 4000 Hours Maintenance....1537
Every 5000 Hours Maintenance....1537
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER....1538
MAINTENANCE PROCEDURE....1539
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)....1539
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)....1539
WHEN REQUIRED....1540
CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....1540
CLEAN INSIDE OF COOLING SYSTEM....1545
CHECK AND TIGHTEN TRACK SHOE BOLTS....1548
CHECK AND ADJUST TRACK TENSION....1549
CHECK ELECTRICAL INTAKE AIR HEATER....1551
REPLACE BUCKET TEETH....1552
ADJUST BUCKET CLEARANCE....1552
CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....1554
CHECK AND ADJUST AIR CONDITIONER (IF EQUIPPED)....1555
WASHING WASHABLE FLOOR....1556
METHOD OF SETTING MACHINE ANGLE....1558
BLEEDING AIR FROM HYDRAULIC SYSTEM....1559
METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT....1561
CHECK BEFORE STARTING....1562
EVERY 100 HOURS MAINTENANCE....1563
LUBRICATING....1563
EVERY 250 HOURS MAINTENANCE....1564
CHECK OIL LEVEL IN MACHINERY CASE, ADD OIL....1564
LUBRICATING....1564
CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....1566
CHECK LEVEL OF BATTERY ELECTROLYTE....1567
LUBRICATE SWING CIRCLE (2 POINTS)....1569
CHECK, ADJUST TENSION OF AIR CONDITIONER COMPRESSOR BELT....1570
EVERY 500 HOURS MAINTENANCE....1571
LUBRICATING....1571
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE....1573
REPLACE FUEL FILTER CARTRIDGE....1574
CHECK SWING PINION GREASE LEVEL, ADD GREASE....1575
CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS AND CONDENSER FINS....1575
CLEAN INTERNAL AND EXTERNAL AIR FILTERS OF AIR CONDITIONER SYSTEM....1576
REPLACE BREATHER ELEMENT IN HYDRAULIC TANK....1577
EVERY 1000 HOURS MAINTENANCE....1578
REPLACE HYDRAULIC FILTER ELEMENT....1578
CHANGE OIL IN SWING MACHINERY CASE....1579
CHECK OIL LEVEL IN DAMPER CASE, ADD OIL....1580
CHECK ALL TIGHTENING PARTS OF TURBOCHARGER....1580
CHECK PLAY OF TURBOCHARGER ROTOR....1580
REPLACE CORROSION RESISTOR CARTRIDGE....1580
CHECK FAN BELT TENSION AND REPLACE FAN BELT....1581
EVERY 2000 HOURS MAINTENANCE....1582
CHANGE OIL IN FINAL DRIVE CASE....1582
CLEAN HYDRAULIC TANK STRAINER....1583
CLEAN ENGINE BREATHER....1583
CLEAN, CHECK TURBOCHARGER....1584
CHECK ALTERNATOR, STARTING MOTOR....1584
CHECK ENGINE VALVE CLEARANCE, ADJUST....1584
CHECK VIBRATION DAMPER....1584
EVERY 4000 HOURS MAINTENANCE....1585
CHECK WATER PUMP....1585
EVERY 5000 HOURS MAINTENANCE....1586
CHANGE OIL IN HYDRAULIC TANK....1586
SPECIFICATIONS....1588
SPECIFICATIONS....1589
EXPLANATION OF LIFTING CAPACITY CHART....1591
ATTACHMENTS AND OPTIONS....1594
GENERAL PRECAUTIONS....1595
PRECAUTIONS RELATED TO SAFETY....1595
PRECAUTIONS WHEN INSTALLING ATTACHMENTS....1597
HANDLING BUCKET WITH HOOK....1598
CHECKING FOR DAMAGE TO BUCKET WITH HOOK....1598
PROHIBITED OPERATIONS....1598
PRECAUTIONS DURING OPERATIONS....1598
MACHINES READY FOR ATTACHMENTS....1599
EXPLANATION OF COMPONENTS....1599
STOP VALVE....1599
SELECTOR VALVE....1600
ATTACHMENT CONTROL PEDAL....1600
LOCK PIN....1600
ADDITIONAL FILTER FOR BREAKER....1601
ACCUMULATOR....1601
HYDRAULIC CIRCUIT....1602
SWITCHING HYDRAULIC CIRCUIT....1602
ADJUSTING OIL FLOW....1602
SWITCHING BETWEEN BREAKER AND GENERAL ATTACHMENT....1602
HYDRAULIC CIRCUIT CONNECTION....1603
PATH OF OIL....1603
REPLACE ADDITIONAL BREAKER FILTER ELEMENT....1604
ATTACHMENT MOUNTING/DISMOUNTING PROCEDURE....1605
OPERATION....1607
LONG-TERM STORAGE....1609
SPECIFICATIONS....1609
ATTACHMENT GUIDE....1610
COMBINATIONS OF WORK EQUIPMENT....1610
SELECTION OF TRACK SHOES....1612
METHOD OF SELECTING SHOES....1612
SELECTION OF BUCKET TEETH....1613
METHOD OF SELECTING TEETH....1613
Use of vertical pin teeth....1613
Use of horizontal pin teeth....1613
Use of long-life teeth....1613
Self-sharpening teeth (both vertical pin type and horizontal pin type)....1613
STANDARDS FOR SELECTING VERTICAL PIN TYPE AND HORIZONTAL PIN TYPE TEETH....1613
HANDLING OF RUBBER PAD SHOE AND ROAD LINER....1614
WORKING ENVIRONMENT....1614
WORKING CONDITIONS....1614
STORAGE AND MAINTENANCE....1615
EXTENT OF DAMAGE TO RUBBER....1615
CHECK ROAD LINER (MACHINES EQUIPPED WITH ROAD LINER)....1615
HANDLING TRAPEZOIDAL BUCKET....1616
HOW TO PERFORM EXCAVATION....1616
HANDLING EXTENSION ARM....1617
HANDLING CLAMSHELL BUCKET....1618
PRECAUTIONS WHEN USING....1618
LUBRICATING....1618
RECOMMENDED ATTACHMENT OPERATIONS....1619
HYDRAULIC BREAKER....1619
MAIN APPLICATIONS....1619
PROHIBITED WORKS....1621
GREASING POSITION FOR HYDRAULIC BREAKER....1623
2-PC BOOM....1624
FEATURES OF 2-PIECE BOOM & ARM....1624
OPERATION....1625
BEFORE STORAGE POSTURE WHEN LEAVING MACHINE....1625
TESTING AND ADJUSTING....1626
INSPECTION AND MAINTENANCE....1626
PERIODIC MAINTENANCE....1627
TRANSPORTATION....1627
SPECIFICATIONS....1628
WORKING RANGE TWO PIECE BOOM PC340LC-7K, PC340NLC-7K....1628
explanation of LIFTING CAPACITY CHART....1629
LIFTING CAPCITY TABLE - PC340LC 2 PC BOOM....1630
LIFTING CAPCITY TABLE PC340NLC 2 PC BOOM....1631
STRAIGHT BOOM PC340LC/NLC-7K....1632
OPERATION....1632
GENERAL VIEW OF MACHINE....1632
CAUTION ITEMS....1633
CONTROL PEDALS (AUXILIARY HYDRAULIC CIRCUITS)....1633
CRUSHER CONTROL PEDAL FOR OPENING AND CLOSING....1634
CRUSHER CONTROL PEDAL FOR ROTATION....1635
WORKING RANGE (PC 340 STRAIGHT BOOM)....1636
TRANSPORTATION (Straight Boom equipment) - PC340LC....1637
TRANSPORTATION (Straight Boom equipment) - PC340NLC....1638
HIGH REACH DEMOLITION EQUIPMENT....1639
OPERATION INSTRUCTION FOR HIGH REACH DEMOLITION EQUIPMENT....1639
GENERAL VIEW OF MACHINE....1639
CAUTION ITEMS....1640
CONTROL LEVERS AND SWITCHES....1641
SAFETY LOCK LEVER....1641
TRAVEL LEVERS....1642
WORK EQUIPMENT CONTROL LEVERS....1643
CRUSHER CONTROL PEDAL FOR OPENING AND CLOSING....1644
INTERMEDIATE LINK AND CRUSHER ROTATION CONTROL PEDAL Intermediate Link control (with auto-deceler.....1645
TILTING CAB MECHANISM OPERATION....1647
BOOM ANGLE ALARM BUZZER CANCEL SWITCH....1648
CEILING WINDOW WIPER SWITCH (10)....1649
DEMOLITION/STANDARD EQUIPMENT CHANGEOVER SWITCH (11)....1650
MACHINE OPERATIONS AND CONTROLS....1651
BEFORE STARTING ENGINE....1651
FUNCTION CHECK....1652
PRECAUTIONS WHEN OPERATING....1652
PROHIBITON OF WORK IN THE OVER SIDES DIRECTION....1653
PROHIBITON OF WORK OUTSIDE SPECIFIED WORKING RANGE....1653
PROHIBITION OF WORK AT THE STROKE END OF A CYLINDER....1656
PROHIBITION OF WORK WITH HYDRAULIC BREAKER....1657
OPERATION....1657
Adjustment of hydraulic variable gauge undercarriage, where fitted....1657
Operating work equipment....1658
Attachment control....1659
RAISING WORK EQUIPMENT....1661
WORKING RANGE AND USING RANGE OF BOOM....1662
POSTURE WHEN LEAVING MACHINE....1665
DEMOLITION DIGGING BOOM INSTALLATION AND REMOVAL....1666
PROCEDURE FOR INSTALLATION AND REMOVAL OF DEMOLITION DIGGING EQUIPMENT....1666
REMOVAL OF HIGH REACH WORK EQUIPMENT....1666
FITTING DEMOLITION DIGGING EQUIPMENT....1671
REMOVAL OF DEMOLITION DIGGING EQUIPMENT....1675
CONNECTING DIGGING ARM TO DEMOLITION DIGGING BOOM....1675
PURGING AIR PROCEDURES....1677
PURGING PROCEDURE TO REMOVE AIR FROM HYDRAULIC CYLINDER LINES....1677
PROCEDURE FOR PURGING AIR FROM BOOM LOCK VALVE PPC CIRCUIT....1677
PURGING AIR FROM HYDRAULIC DRIFT PREVENTATIVE VALVE PPC CIRCUITS OF MID LINK AND ARM CYLINDER....1679
TRANSPORTATION (high reach demolition equipment fitted)....1681
PROCEDURE FOR LOADING ON TO TRAILER....1681
TRANSPORTATION (demolition digging equipment fitted)....1682
PROCEDURE FOR LOADING ON TO TRAILER....1682
TRANSPORTATION (high reach demolition equipment alone)....1682
PROCEDURE FOR LOADING ON TO TRAILER....1682
WEIGHTS AND DIMENSIONS....1687
TRANSPORT DIMENSIONS - HIGH REACH CONFIGURATION....1688
TRANSPORT DIMENSIONS - DIGGING BOOM CONFIGURATION....1689
UEBM000901 - Hydraulic Excavator PC340-6K, PC340LC-6K, PC340NLC-6K Shop Manual....1694
SAFETY ....1696
SAFETY NOTICE ....1696
SAFETY SAFETY NOTICE GENERAL PRECAUTIONS ....1696
PREPARATIONS FOR WORK. ....1696
SAFETY SAFETY NOTICE PRECAUTIONS DURING WORK ....1697
FOREWORD ....1698
GENERAL ....1698
STRUCTURE AND FUNCTION ....1698
TESTING AND ADJUSTING ....1698
DISASSEMBLY AND ASSEMBLY ....1698
MAINTENANCE STANDARD ....1698
FOREWORD FOREWORD GENERAL VOLUMES ....1699
Chassis volume: ....1699
Engine model: ....1699
Electrical volume: Attachments volume: ....1699
DISTRIBUTION AND UPDATING ....1699
FILING METHOD ....1699
10 - 3 ....1699
1 2 - 5 ....1699
REVISED EDITION MARK ....1699
REVISIONS ....1699
SYMBOLS ....1699
FOREWORD HOW TO READ THE SHOP MANUAL ....1699
HOW TO READ THE SHOP MANUAL ....1699
HOISTING INSTRUCTIONS ....1700
COATING MATERIALS ....1701
STANDARD TIGHTENING TORQUE ....1702
ELECTRIC WIRE CODE ....1704
CONVERSION TABLE ....1705
GENERAL ....1712
SPECIFICATION DRAWINGS ....1713
FUEL, COOLANT AND LUBRICANTS ....1719
STRUCTURE AND FUNCTION ....1722
PARTS RELATED TO ENGINE ....1723
RADIATOR, OIL COOLER ....1725
POWER TRAIN ....1726
FINAL DRIVE ....1727
SWING CIRCLE ....1728
SWING MACHINERY ....1729
TRACK FRAME, RECOIL SPRING ....1730
TRACK SHOE ....1731
HYDRAULIC PIPING DRAWING ....1733
HYDRAULIC CIRCUIT DIAGRAM ....1735
HYDRAULIC PUMP ....1738
CONTROL VALVE ....1759
SELF- REDUCING PRESSURE VALVE SUCTION SAFETY VALVE ....1774
CLSS ....1776
SWING MOTOR ....1841
CENTER SWIVEL JOINT ....1847
TRAVEL MOTOR ....1849
VALVE CONTROL ....1858
WORK EQUIPMENT SWING PPC VALVE ....1859
TRAVEL PPC VALVE SERVICE PPC VALVE ....1867
PPC SAFETY LOCK VALVE ....1870
PPC ACCUMULATOR ....1870
PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE ....1872
LS- EPC VALVE ....1879
SOLENOID VALVE ....1883
WORK EQUIPMENT ....1891
AIR CONDITIONER ....1892
ACTUAL ELECTRIC WIRING DIAGRAM ....1893
ELECTRIC CIRCUIT DIAGRAM ....1897
ENGINE CONTROL ....1901
ELECTRONIC CONTROL SYSTEM ....1908
MACHINE MONITOR SYSTEM ....1935
TESTING AND ADJUSTING ....1946
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS ....1949
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS ....1950
STANDARD VALUE TABLE FOR ELECTRICAL PARTS ....1958
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING ....1967
MEASURING ENGINE SPEED ....1968
MEASURING EXHAUST COLOR ....1969
ADJUSTING VALVE CLEARANCE ....1970
MEASURING COMPRESSION PRESSURE ....1971
MEASURING BLOW- BY PRESSURE ....1971
TESTING AND ADJUSTING FUEL INJECTION TIMING ....1972
MEASURING ENGINE OIL PRESSURE ....1973
TESTING AND ADJUSTING ALTERNATOR BELT TENSION ....1974
TESTING AND ADJUSTING WATER PUMP BELT TENSION ....1974
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR ....1975
ADJUSTING ENGINE SPEED SENSOR ....1975
MEASURING AIR SUPPLY PRESSURE ( BOOST PRESSURE) ....1976
TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE ....1977
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT ....1978
TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE ( SERVO PISTON INPUT PRESSURE) ....1981
TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE ( SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE ....1983
TESTING CONTROL CIRCUIT OIL PRESSURE ( OIL PRESSURE WHEN SELF- PRESSURE IS REDUCED) ....1986
TESTING SOLENOID VALVE OUTPUT PRESSURE ....1987
MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE ....1990
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE ....1992
TESTING TRAVEL DEVIATION ....1993
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT ....1994
MEASURING OIL LEAKAGE ....1996
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT ....1998
TESTING CLEARANCE OF SWING CIRCLE BEARING ....1999
TESTING WEAR OF SPROCKET ....2000
TESTING AND ADJUSTING TRACK SHOE TENSION ....2001
BLEEDING AIR ....2002
POINTS TO REMEMBER WHEN TROUBLESHOOTING ....2005
CHECKS BEFORE TROUBLESHOOTING ....2015
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS ....2022
EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM ....2032
DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL ....2033
METHOD OF USING JUDGEMENT TABLE ....2042
METHOD OF USING TROUBLESHOOTING CHARTS ....2044
DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE ....2046
SERVICE CODE TABLE ....2051
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER ( GOVERNOR CONTROL SYSTEM) ( E MODE) ....2055
POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER SYSTEM ....2056
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ....2058
JUDGEMENT TABLE FOR GOVERNOR, PUMP CONTROLLER ( GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS ....2062
JUDGEMENT TABLE FOR GOVERNOR, PUMP CONTROLLER ( GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS ....2062
E- 1 Abnormality in governor, pump controller power source ( controller LED is OFF) ....2066
E- 2 [ E308] Abnormality in fuel control dial input value is displayed ....2067
E- 3 [ E317] Abnormality ( disconnection) in motor drive system is displayed ....2068
E- 4 [ E318] Abnormality ( short circuit) in motor drive system is displayed ....2069
E- 5 [ E306] Abnormality in feedback potentiometer system is displayed ....2070
E- 6 [ E315] Abnormality ( short circuit) in battery relay output system is displayed ....2071
E- 7 [ E316] Abnormality ( step- out) in motor is displayed ....2072
E- 8 Engine does not start ....2074
E- 9 Engine speed is irregular ....2076
E- 10 Lack of output ( engine high idling speed is too low) ....2080
E- 11 Engine does not stop ....2082
E- 12 Defective operation of battery relay system ( engine does not stop) ....2084
TROUBLESHOOTING OF ENGINE SYSTEM ( S MODE) ....2086
S- 1 Starting performance is poor ( starting always takes time) ....2091
S- 2 Engine does not start ....2092
S- 3 Engine does not pick up smoothly ( follow- up is poor) ....2095
S- 4 Engine stops during operations ....2096
S- 5 Engine does not rotate smoothly ( hunting) ....2097
S- 6 Engine lacks output ( no power) ....2098
S- 7 Exhaust smoke is black ( incomplete combustion) ....2099
S- 8 Oil consumption is excessive ( or exhaust smoke is blue) ....2100
S- 9 Oil becomes contaminated quickly ....2101
S- 10 Fuel consumption is excessive ....2102
S- 11 Oil is in cooling water, or water spurts back, or water level goes down ....2103
S- 12 Oil pressure caution lamp lights up ( drop in oil pressure) ....2104
S- 13 Oil level rises ( water, fuel in oil) ....2105
S- 14 Water temperature becomes too high ( overheating) ....2106
S- 15 Abnormal noise is made ....2107
S- 16 Vibration is excessive ....2108
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER ( PUMP CONTROL SYSTEM) ( C MODE) ....2109
C- 1 Abnormality in controller power source system ( controller LED is OFF) ....2124
C- 2 [ E232] Short circuit in front pump TVC solenoid system is displayed ....2125
C- 3 [ E233] Disconnection in front pump TVC solenoid system is displayed ....2127
C- 4 [ E236] Short circuit in rear pump TVC solenoid system is displayed ....2129
C- 5 [ E237] Disconnection in rear pump TVC solenoid system is displayed ....2131
C- 6 [ E207] Short circuit in active mode ( boom) solenoid system is displayed ....2133
C- 7 [ E208] Disconnection in active mode ( boom) solenoid system is displayed ....2134
C- 8 [ E203] Short circuit in swing brake solenoid system is displayed ....2135
C- 9 [ E213] Disconnection in swing brake solenoid system is displayed ....2137
C- 10 [ E204] Short circuit in pump merge/ divider solenoid system is displayed ....2139
C- 11 [ E214] Disconnection in pump merge/ divider solenoid system is displayed ....2140
C- 12 [ E206] Short circuit in travel speed solenoid system is displayed ....2141
C- 13 [ E216] Disconnection in travel speed selector solenoid system is displayed ....2142
C- 14 [ E231] Short circuit in active mode ( swing) solenoid system is displayed ....2143
C- 15 [ E235] Disconnection in active mode ( swing) solenoid system is displayed ....2144
C- 16 [ E217] Model selection input error is displayed ....2145
C- 17 [ E222] Short circuit in LS- EPC solenoid system is displayed ....2147
C- 18 [ E223] Disconnection in LS- EPC solenoid system is displayed ....2148
C- 19 [ E224] Abnormality in front pump pressure sensor system is displayed ....2149
C- 20 [ E225] Abnormality in rear pump pressure sensor system is displayed ....2150
C- 21 [ E226] Abnormality in pressure sensor power source system is displayed ....2151
C- 22 [ E227] Abnormality in engine speed sensor system is displayed ....2152
C- 23 Abnormality in machine push- up solenoid system ( no service code displayed) ....2153
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER ( INPUT SIGNAL SYSTEM) ( F MODE) ....2157
F- 1 Bit pattern 20-( 1) Swing oil pressure switch does not light up ....2160
F- 2 Bit pattern 20-( 2) Travel oil pressure switch does not light up ....2161
F- 3 Bit pattern 20-( 3) Boom LOWER oil pressure switch does not light up ....2162
F- 4 Bit pattern 20-( 4) Boom RAISE oil pressure switch does not light up ....2163
F- 5 Bit pattern 20-( 5) Arm IN oil pressure switch does not light up ....2164
F- 6 Bit pattern 20-( 6) Arm OUT oil pressure switch does not light up ....2165
F- 7 Bit pattern 21-( 1) Bucket CURL oil pressure switch does not light up ....2166
F- 8 Bit pattern 21-( 2) Bucket DUMP oil pressure switch does not light up ....2167
F- 9 Bit pattern 21-( 3) Swing lock switch does not light up ....2168
F- 10 Bit pattern 22-( 5) Kerosene mode connection does not light up ....2169
F- 11 Bit pattern 22-( 6) L. H. knob switch does not light up ....2170
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM ( H MODE) ....2171
H- 1 Speeds of all work equipment, swing, travel are slow or lack power ....2178
H- 2 There is excessive drop in engine speed, or engine stalls ....2180
H- 3 No work equipment, travel, swing move H- 4 Abnormal noise generated ( around pump) H- 5 Auto- deceleration does not work ( when PPC shuttle valve is cause) ....2182
H- 6 Fine control ability is poor or response is poor H- 7 Boom is slow or lacks power ....2184
H- 8 Arm is slow or lacks power ....2186
H- 9 Bucket is slow or lacks power ....2188
H- 10 Work equipment ( boom, arm, bucket) does not move ( but travel and swing are normal) ....2189
H- 11 Excessive hydraulic drift ( boom, arm, bucket) ....2189
H- 12 Excessive time lag ( engine at low idling) ....2190
H- 13 Other equipment moves when single circuit is relieved H- 14 In L/ O, F/ O modes, work equipment speed is faster than specified speed ....2191
H- 15 Defective actuation of machine push- up function ....2191
H- 16 In compound operations, work equipment with larger load is slow ....2191
H- 17 In swing + boom RAISE, boom RAISE is slow ....2192
H- 18 In swing + arm, arm is slow ....2192
H- 19 In swing + travel, travel speed drops excessively ....2192
H- 20 Travel deviation ....2193
H- 21 Travel speed is slow ....2194
H- 22 Steering does not turn easily or lacks power ....2196
H- 23 Travel speed does not switch or is faster than specified speed ....2198
H- 24 Travel does not move ( one side only) ....2198
H- 25 Does not swing ....2199
H- 26 Swing acceleration is poor or swing speed is slow ....2200
H- 27 Excessive overrun when stopping swing ....2202
H- 28 Excessive shock when stopping swing ( one direction only) H- 29 Excessive abnormal noise when stopping swing ....2203
H- 30 Excessive hydraulic drift of swing ....2204
H- 31 Swing speed is faster than specified swing speed ....2205
TROUBLESHOOTING OF MACHINE MONITOR SYSTEM ( M MODE) ....2206
M- 1 [ E101] Abnormality in error data is displayed [ E102] Error in clock data is displayed ....2213
M- 2 [ E103] Short circuit in buzzer output or contact of 24V wiring harness with buzzer drive harness is displayed ....2214
M- 3 [ E104] Air cleaner clogging detected is displayed ....2215
M- 4 [ E106] Drop in engine oil Hi pressure detected is displayed ....2215
M- 5 [ E108] Engine water temperature 105 C detected is displayed ....2216
M- 6 When starting switch is turned ON, none of lamps on monitor panel light up for 3 seconds ....2217
M- 7 When starting switch is turned ON, monitor panel lamps all stay lighted up and do not go out M- 8 When starting switch is turned ON, items lighted up on monitor panel are different from actual machine ( model) ....2219
M- 9 When starting switch is turned ON ( engine stopped), basic check items flash ....2220
M- 10 Preheating is not being used but ( preheating monitor) lights up ....2223
M- 11 When starting switch is turned ON and engine is started, basic check items flash ....2224
M- 12 When starting switch is turned ON ( engine stopped), caution items, emergency items flash ( battery, engine oil pressure lamps do not light up) ....2226
M- 13 When starting switch is turned ON and engine is started, caution items, emergency items flash ( when there is no abnormality in engine or items to check before troubleshooting) ....2228
M- 14 When starting switch is turned ON ( engine stopped), buzzer does not sound for 1 second Caution item flashes but buzzer does not sound ....2231
M- 15 No abnormality is displayed on monitor but buzzer sounds ....2231
M- 16 Night lighting on monitor panel does not light up ( liquid crystal display is normal) ....2232
M- 17 Coolant temperature gauge does not rise ....2233
M- 18 Coolant temperature gauge does not give any display ( none of gauge lamps light up during operation) ....2233
M- 19 Fuel level gauge always displays FULL ....2234
M- 20 Fuel level gauge does not give display ....2234
M- 21 Swing lock switch is turned ON ( LOCK) but ( swing lock monitor) does not light up ....2235
M- 22 Swing prolix switch is turned ON ( prolix), but ( swing lock monitor) does not flash ....2235
M- 23 Service meter does not advance while engine is running M- 24 When starting switch is at OFF and time switch is pressed, time and service meter are not displayed M- 25 Defective fuel level sensor system ....2237
M- 26 Defective coolant temperature sensor system ....2238
M- 27 Defective engine oil level sensor system ....2239
M- 28 Defective coolant level sensor system ....2240
M- 29 Defective hydraulic oil level sensor system ....2241
M- 30 Wiper does not work, or switch is not being used but wiper is actuated ( include E112, E113) ....2243
M- 31 Washer motor does not work, or switch is not being used but washer motor is actuated ( include E114) ....2248
30 ....2251
METHOD OF USING MANUAL ....2253
PRECAUTIONS WHEN CARRYING OUT OPERATION ....2255
SPECIAL TOOL LIST ....2257
SKETCHES OF SPECIAL TOOLS ....2260
REMOVAL OF STARTING MOTOR ASSEMBLY ....2262
INSTALLATION OF STARTING MOTOR ASSEMBLY ....2262
REMOVAL OF ALTERNATOR ASSEMBLY ....2263
INSTALLATION OF ALTERNATOR ASSEMBLY ....2263
REMOVAL OF ENGINE OIL COOLER ASSEMBLY ....2264
INSTALLATION OF ENGINE OIL COOLER ASSEMBLY ....2264
REMOVAL OF FUEL INJECTION PUMP ASSEMBLY ....2265
INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY ....2266
REMOVAL OF WATER PUMP ASSEMBLY ....2267
INSTALLATION OF WATER PUMP ASSEMBLY ....2267
REMOVAL OF NOZZLE HOLDER ASSEMBLY ....2268
INSTALLATION OF NOZZLE HOLDER ASSEMBLY ....2268
REMOVAL OF TURBOCHARGER ASSEMBLY ....2269
INSTALLATION OF TURBOCHARGER ASSEMBLY ....2269
REMOVAL OF THERMOSTAT ASSEMBLY ....2270
INSTALLATION OF THERMOSTAT ASSEMBLY ....2270
REMOVAL OF ENGINE FRONT SEAL ....2271
INSTALLATION OF ENGINE FRONT SEAL ....2272
REMOVAL OF ENGINE REAR SEAL ....2273
INSTALLATION OF ENGINE REAR SEAL ....2273
REMOVAL OF GOVERNOR MOTOR ASSEMBLY ....2275
INSTALLATION OF GOVERNOR MOTOR ASSEMBLY ....2275
REMOVAL OF CYLINDER HEAD ASSEMBLY ....2276
INSTALLATION OF CYLINDER HEAD ASSEMBLY ....2278
REMOVAL OF AFTERCOOLER ASSEMBLY ....2281
INSTALLATION OF AFTERCOOLER ASSEMBLY ....2281
REMOVAL OF HYDRAULIC COOLER ASSEMBLY ....2282
INSTALLATION OF HYDRAULIC COOLER ASSEMBLY ....2282
REMOVAL OF RADIATOR, HYDRAULIC COOLER ASSEMBLY ....2283
INSTALLATION OF RADIATOR, HYDRAULIC COOLER ASSEMBLY ....2284
REMOVAL OF ENGINE, MAIN PUMP ASSEMBLY ....2285
INSTALLATION OF ENGINE, MAIN PUMP ASSEMBLY ....2288
REMOVAL OF DAMPER ASSEMBLY ....2289
INSTALLATION OF DAMPER ASSEMBLY ....2289
REMOVAL OF FUEL TANK ASSEMBLY ....2290
INSTALLATION OF FUEL TANK ASSEMBLY ....2290
REMOVAL OF CENTER SWIVEL JOINT ASSEMBLY ....2291
INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY ....2291
DISASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY ....2292
ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY ....2292
REMOVAL OF FINAL DRIVE ASSEMBLY ....2293
INSTALLATION OF FINAL DRIVE ASSEMBLY ....2293
DISASSEMBLY OF FINAL DRIVE ASSEMBLY ....2294
ASSEMBLY OF FINAL DRIVE ASSEMBLY ....2298
DISASSEMBLY OF TRAVEL MOTOR ASSEMBLY ....2306
ASSEMBLY OF TRAVEL MOTOR ASSEMBLY ....2311
DISASSEMBLY OF MAIN PUMP ASSEMBLY ....2320
ASSEMBLY OF MAIN PUMP ASSEMBLY ....2326
DISASSEMBLY OF PUMP MERGE/ DIVIDER VALVE ASSEMBLY ....2340
ASSEMBLY OF PUMP MERGE/ DIVIDER VALVE ASSEMBLY ....2340
DISASSEMBLY OF PRESSURE COMPENSATION VALVE ASSEMBLY ....2341
ASSEMBLY OF PRESSURE COMPENSATION VALVE ASSEMBLY ....2341
REMOVAL OF SERVO VALVE ASSEMBLY FOR FRONT PUMP ....2342
INSTALLATION OF SERVO VALVE ASSEMBLY FOR FRONT PUMP ....2342
REMOVAL OF SERVO VALVE ASSEMBLY FOR REAR PUMP ....2343
INSTALLATION OF SERVO VALVE ASSEMBLY FOR REAR PUMP ....2343
REMOVAL OF LS- EPC SOLENOID VALVE ASSEMBLY ....2344
INSTALLATION OF LS- EPC SOLENOID VALVE ASSEMBLY ....2344
REMOVAL OF SOLENOID VALVE ASSEMBLY ....2345
INSTALLATION OF SOLENOID VALVE ASSEMBLY ....2345
REMOVAL OF WORK EQUIPMENT PPC VALVE ASSEMBLY ....2346
INSTALLATION OF WORK EQUIPMENT, PPC VALVE ASSEMBLY ....2346
DISASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY ....2347
ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY ....2348
REMOVAL OF TRAVEL PPC VALVE ASSEMBLY ....2349
INSTALLATION OF TRAVEL PPC VALVE ASSEMBLY ....2349
DISASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY ....2350
ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY ....2351
REMOVAL OF PPC SHUTTLE VALVE ASSEMBLY ....2352
INSTALLATION OF PPC SHUTTLE VALVE ASSEMBLY ....2353
DISASSEMBLY OF PPC SHUTTLE VALVE ASSEMBLY ....2354
ASSEMBLY OF PPC SHUTTLE VALVE ASSEMBLY ....2355
REMOVAL OF BOOM CYLINDER ASSEMBLY ....2356
INSTALLATION OF BOOM CYLINDER ASSEMBLY ....2357
REMOVAL OF ARM CYLINDER ASSEMBLY ....2358
INSTALLATION OF ARM CYLINDER ASSEMBLY ....2359
REMOVAL OF BUCKET CYLINDER ASSEMBLY ....2360
INSTALLATION OF BUCKET CYLINDER ASSEMBLY ....2361
DISASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY ....2362
ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY ....2365
REMOVAL OF WORK EQUIPMENT ASSEMBLY ....2369
INSTALLATION OF WORK EQUIPMENT ASSEMBLY ....2370
REMOVAL OF BUCKET ASSEMBLY ....2371
INSTALLATION OF BUCKET ASSEMBLY ....2372
REMOVAL OF ARM ASSEMBLY ....2373
INSTALLATION OF ARM ASSEMBLY ....2374
REMOVAL OF BUCKET, ARM ASSEMBLY ....2375
INSTALLATION OF BUCKET, ARM ASSEMBLY ....2376
REMOVAL OF BOOM ASSEMBLY ....2377
INSTALLATION OF BOOM ASSEMBLY ....2378
REMOVAL OF COUNTERWEIGHT ASSEMBLY ....2381
INSTALLATION OF COUNTERWEIGHT ASSEMBLY ....2381
REMOVAL OF AIR CONDITIONER COMPRESSOR ASSEMBLY ....2382
INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY ....2382
REMOVAL OF AIR CONDITIONER CONDENSER ASSEMBLY ....2383
INSTALLATION OF CONDENSER ASSEMBLY ....2383
REMOVAL OF RECEIVER TANK ASSEMBLY ....2384
INSTALLATION OF RECEIVER TANK ASSEMBLY ....2384
REMOVAL OF AIR CONDITIONER UNIT ASSEMBLY ....2385
INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY ....2386
REMOVAL OF GOVERNOR, PUMP CONTROLLER ASSEMBLY ....2387
INSTALLATION OF GOVERNOR, PUMP CONTROLLER ASSEMBLY ....2387
REMOVAL OF MONITOR PANEL ASSEMBLY ....2388
INSTALLATION OF MONITOR PANEL ASSEMBLY ....2388
REMOVAL OF CONTROL STAND CASE ....2389
INSTALLATION OF CONTROL STAND CASE ....2390
MAINTENANCE STANDARD ....2391
ENGINE MOUNT ....2392
SWING MACHINERY SWING CIRCLE ....2396
FINAL DRIVE TRACK FRAME AND RECOIL SPRING ....2400
IDLER ....2402
CARRIER ROLLER ....2404
TRACK ROLLER ....2405
TRACK SHOE ....2406
HYDRAULIC PUMP ....2410
CONTROL VALVE ....2412
SELF- REDUCING PRESSURE VALVE ....2419
SUCTION- SAFETY VALVE ....2420
SWING MOTOR ....2421
TRAVEL MOTOR ....2422
TRAVEL PPC VALVE ....2424
PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE ....2426
LS- EPC VALVE ....2427
SOLENOID VALVE HYDRAULIC CYLINDER ....2431
WORK EQUIPMENT ....2433
UEBM001501 - Hydraulic Excavator PC340LC-7K, PC340NLC-7K Shop Manual....2442
PC340_07_section01.pdf....0
SPECIFICATION DIMENSION DRAWINGS....2449
DIMENSIONS....2449
WORKING RANGES....2449
DIMENSIONS....2450
Working ranges....2450
SPECIFICATIONS....2451
PC340LC-7, PC340NLC-7....2451
WEIGHT TABLE....2453
PC340LC-7, PC340NLC-7....2453
FUEL, COOLANT, AND LUBRICANTS....2455
PC340_7_Section10.pdf....0
ENGINE RELATED PARTS....2457
RADIATOR OIL COOLER AFTERCOOLER....2458
POWER TRAIN....2459
FINAL DRIVE....2461
SWING MACHINERY....2463
SWING CIRCLE....2465
TRACK FRAME RECOIL SPRING....2467
IDLER....2469
CARRIER ROLLER....2471
TRACK ROLLER....2472
TRACK SHOE....2473
TRIPLE GROUSER SHOE....2476
hydraulic equipment layout drawing....2477
HYDRAULIC TANK....2479
HYDRAULIC PUMP....2481
HPV125 + 125....2481
LS VALVE....2486
PC VALVE....2486
LS(pc)-EPC VALVE....2499
variable volume valve....2502
CONTROL VALVE....2505
MAIN RELIEF VALVE....2519
Variable pressure compensation valve....2520
CLSS....2521
OUTLINE OF CLSS....2521
SELF PRESSURE REDUCING VALVE....2524
SWING MOTOR....2527
REVERSE PREVENTION VALVE....2533
CENTER SWIVEL JOINT....2535
TRAVEL MOTOR....2536
TRAVEL JUNCTION VALVE....2546
TRAVEL PPC SHUTTLE VALVE....2549
VALVE CONTROL....2553
WORK EQUIPMENT SWING PPC VALVE....2554
TRAVEL PPC VALVE....2558
SERVICE PPC VALVE....2567
SOLENOID VALVE....2570
PPC ACCUMULATOR....2572
return oil filter....2573
For Breaker....2573
BOOM HYDRAULIC DRIFT PREVENTION VALVE....2575
quick return valve....2581
LIFT CHECK VALVE....2583
attachment circuit selector valve....2584
HYDRAULIC CYLINDER....2586
BOOM CYLINDER....2586
ARM CYLINDER....2586
BUCKET CYLINDER....2586
work equipment....2589
2. Dimension of bucket....2593
air conditioner....2595
air conditioner piping....2595
ENGINE CONTROL....2596
Governor motor....2599
Engine throttle and pump controller....2601
ELECTRONIC CONTROL SYSTEM....2604
Total system diagram....2605
mULTI MONITOR SYSTEM....2628
20-001.pdf....0
1. The standard value for a new machine given in the table is the value used when shipping the ma.....2654
2. The service limit value given in the tables is the estimated value for the shipped machine bas.....2654
3. These standard values are not the standards used in dealing with claims....2654
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS....2655
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS....2656
20_101.pdf....0
INSPECTION AND ADJUSTMENT OF ENGINE RPM....2665
MEASUREMENT OF AIR BOOST PRESSURE....2667
MEASUREMENT OF EXHAUST GAS COLOR....2668
ADJUSTMENT OF VALVE CLEARANCE....2669
MEASUREMENT OF COMPRESSION PRESSURE....2671
MEASUREMENT OF BLOW-BY PRESSURE....2672
INSPECTION AND ADJUSTMENT OF FUEL INJECTION TIMING....2673
MEASUREMENT OF ENGINE OIL PRESSURE....2675
ADJUSTMENT OF ENGINE SPEED SENSOR....2676
INSPECTION AND ADJUSTMENT OF AIR COMPRESSOR BELT TENSION....2676
EMERGENT ESCAPE FROM FAILURE IN ENGINE CONTROL SYSTEM....2677
MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS....2678
INSPECTION AND ADJUSTMENT OF TRACK SHOE TENSION....2679
INSPECTION OF WEAR ON SPROCKET....2679
INSPECTION AND ADJUSTMENT OF HYDRAULIC OIL PRESSURE IN HYDRAULIC CIRCUIT FOR WORK EQUIPMENT, SWIN.....2680
INSPECTION AND ADJUSTMENT OF CONTROL CIRCUIT OIL PRESSURE....2684
INSPECTION AND ADJUSTMENT OF PUMP PC CONTROL CIRCUIT OIL PRESSURE....2685
INSPECTION AND ADJUSTMENT OF PUMP LS CONTROL CIRCUIT OIL PRESSURE....2688
MEASUREMENT OF SOLENOID VALVE OUTPUT PRESSURE....2692
MEASUREMENT OF PPC VALVE OUTPUT PRESSURE....2695
ADJUSTMENT OF WORK EQUIPMENT AND SWING PPC VALVE....2696
INSPECTION OF LOCATIONS OF HYDRAULIC DRIFT OF WORK EQUIPMENT....2697
RELEASE OF REMAINING PRESSURE IN HYDRAULIC CIRCUIT....2698
MEASUREMENT OF OIL LEAKAGE AMOUNT....2699
AIR BLEEDING OF VARIOUS PARTS....2701
INSPECTION PROCEDURES FOR DIODE....2703
SPECIAL FUNCTION OF MULTI-MONITOR PANEL....2704
DISPLAY METHOD AND SPECIAL FUNCTIONS OF 7-SEGMENT MONITOR PANEL....2728
PREPARATIONS FOR TROUBLESHOOTING ELECTRICAL SYSTEM....2741
20_201.pdf....0
POINTS TO REMEMBER WHEN TROUBLESHOOTING....2747
SEQUENCE OF EVENTS IN TROUBLESHOOTING....2748
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....2749
CHECKS BEFORE TROUBLESHOOTING....2757
CLASSIFICATION AND STEPS FOR TROUBLESHOOTING....2758
CONNECTOR LOCATION CHART AND ELECTRICAL CIRCUIT DIAGRAM BY SYSTEM....2763
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS....2781
20_301.pdf....0
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....2802
20_501.pdf....0
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....2815
30.pdf....0
HOW TO READ THIS MANUAL....2966
REMOVAL AND INSTALLATION OF ASSEMBLIES....2966
DisassemblY and assemblY OF assemblIES....2967
PRECAUTIONS WHEN PERFORMING OPERATION....2968
REMOVAL AND INSTALLATION OF STARTING MOTOR ASSEMBLY....2970
REMOVAL....2970
INSTALLATION....2970
REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY....2971
REMOVAL AND INSTALLATION OF ENGINE FRONT SEAL....2975
REMOVAL AND INSTALLATION OF ENGINE REAR SEAL....2976
REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY....2978
REMOVAL AND INSTALLATION OF RADIATOR ASSEMBLY....2984
REMOVAL AND INSTALLATION OF HYDRAULIC OIL COOLER ASSEMBLY....2986
REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP ASSEMBLIES....2988
REMOVAL AND INSTALLATION OF FINAL DRIVE ASSEMBLY....2992
DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY....2993
SKETCHES OF SPECIAL TOOLS....3002
REMOVAL AND INSTALLATION OF SWING MOTOR, SWING MACHINERY ASSEMBLY....3003
DISASSEMBLY AND ASSEMBLY OF SWING MOTOR, SWING MACHINERY ASSEMBLY....3004
SKETCHES OF SPECIAL TOOLS....3011
DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY....3012
DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY....3013
DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY....3014
DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY....3017
REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY....3020
EXPANSION OF TRACK SHOE....3020
REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY....3022
REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY....3023
REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY....3026
DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY....3028
REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY....3029
REMOVAL AND INSTALLATION OF CONTROL VALVE ASSEMBLY....3031
DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY....3034
REMOVAL AND INSTALLATION OF HYDRAULIC PUMP ASSEMBLY....3036
REMOVAL AND INSTALLATION OF OIL SEAL IN HYDRAULIC PUMP INPUT SHAFT....3039
DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY....3040
DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY....3041
DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY....3042
REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY....3048
REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY....3051
REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY....3054
REMOVAL AND INSTALLATION OF OPERATORS CAB ASSEMBLY....3055
REMOVAL AND INSTALLATION OF MONITOR ASSEMBLY....3057
REMOVAL AND INSTALLATION OF GOVERNOR PUMP CONTROLLER ASSEMBLY....3058
20_601.pdf....0
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H-MODE)....2804
SYSTEM CHART FOR HYDRAULIC AND MECHANICAL SYSTEMS....2941
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....2943
H-1 All work equipment lack power, or travel and swing speeds are slow....2944
H-2 Engine speed sharply drops or engine stalls....2945
H-3 No work equipment, travel or swing move....2946
H-4 Abnormal noise is heard from around hydraulic pump....2946
H-5 Auto-decelerator does not work....2947
H-6 Fine control mode does not function....2947
H-7 Boom moves slowly or lacks power....2948
H-8 Arm moves slowly or lacks power....2949
H-9 Bucket moves slowly or lacks power....2950
H-10 Work equipment does not move in its single operation....2950
H-11 Work equipment has a bit too fast hydraulic drift....2951
H-12 Work equipment has big time lag....2952
H-13 Other work equipment moves when relieving single circuit....2952
H-14 One-touch power max. switch does not operate....2952
H-15 In compound operation, work equipment with larger load moves slowly....2953
H-16 In swing + boom RAISE operation, boom moves slowly....2953
H-17 In swing + travel, travel speed drops sharply....2953
H-18 Machine swerves in travel....2954
H-19 Machine travels slowly....2955
H-20 Machine cannot be easily steered or lacks power....2956
H-21 Travel speed does not shift, or it is too slow or fast....2899
H-22 Track shoe does not turn (on one side only)....2957
H-23 Machine does not swing....2958
H-24 Swing acceleration is poor, or swing speed is slow....2959
H-25 Excessive overrun when stopping swing....2960
H-26 There is big shock when stopping swing....2961
H-27 There is big abnormal noise caused when stopping swing....2961
H-28 Swing natural drift is too big....2962
PC340_A2.pdf....0
hydraulic circuit diagram....3062
electrical circuit diagram (1/4)....3064
FOR multi monitor....3064
electrical circuit diagram (2/4)....3066
FOR multi monitor....3066
electrical circuit diagram (3/4)....3068
FOR multi monitor....3068
electrical circuit diagram (4/4)....3070
FOR multi monitor....3070
UEN00262-00 - Hydraulic Excavator GALEO PC340LC-7, PC340NLC-7 Shop Manual....3072
00 Index and foreword....3074
Index....3074
Organization list of the shop manual....3075
Table of contents....3077
00 Index and foreword....3086
Foreword and general information....3086
Foreword and general information....3087
Safety notice....3087
How to read the shop manual....3091
Explanation of terms for maintenance standard....3093
Handling electric equipment and hydraulic component....3095
How to read electric wire code....3103
Method of disassembling and connecting push-pull type coupler....3106
Standard tightening torque table....3109
Conversion table....3113
01 Specification....3120
Specification and technical data....3120
Specification and technical data....3121
Specification dimension drawings....3121
Specifications....3123
Weight table....3126
Table of fuel, coolant and lubricants....3127
10 Structure, function and maintenance standard....3130
Engine and cooling system....3130
Engine and cooling system....3131
Engine related parts....3131
Radiator, oil cooler and aftercooler....3132
10 Structure, function and maintenance standard....3134
Power train....3134
Power train....3135
Power train....3135
Final drive....3137
Sprocket....3139
Swing machinery....3141
Swing circle....3143
10 Structure, function and maintenance standard....3146
Undercarriage and frame....3146
Undercarriage and frame....3147
Track frame and recoil spring....3147
Idler....3149
Carrier roller....3151
Track roller....3152
Track shoe....3153
10 Structure, function and maintenance standard....3158
Hydraulic system, Part 1....3158
Hydraulic system, Part 1....3159
Hydraulic equipment layout drawing....3159
Hydraulic tank and filter....3161
Hydraulic pump....3163
10 Structure, function and maintenance standard....3188
Hydraulic system, Part 2....3188
Hydraulic system, Part 2....3189
Control valve....3189
CLSS....3201
Functions and operation by valve....3205
Merge-divider valve....3220
Attachment circuit selector valve....3239
Hydraulic drift prevention valve....3241
10 Structure, function and maintenance standard....3248
Hydraulic system, Part 3....3248
Hydraulic system, Part 3....3249
Valve control....3249
PPC valve....3251
Solenoid valve....3267
PPC accumulator....3269
Return oil filter....3270
Center swivel joint....3271
Travel motor....3272
Swing motor....3284
Hydraulic cylinder....3293
10 Structure, function and maintenance standard....3296
Work equipment....3296
Work equipment....3297
Work equipment....3297
Dimensions of components....3299
10 Structure, function and maintenance standard....3304
Cab and its attachments....3304
Cab and its attachments....3305
Air conditioner piping....3305
10 Structure, function and maintenance standard....3308
Electrical system....3308
Electrical system....3309
Engine control....3309
Electronic control system....3318
Monitor system....3345
Sensor....3363
KOMTRAX terminal system....3366
20 Standard value table....3370
Standard service value table....3370
Standard service value table....3371
Standard value table for engine related parts....3371
Standard value table for chassis related parts....3372
30 Testing and adjusting....3384
Testing and adjusting, Part 1....3384
Testing and adjusting, Part 1....3386
Tools for testing, adjusting and troubleshooting....3386
Measuring engine speed....3388
Measuring air boost pressure....3389
Measuring exhaust gas color....3390
Adjusting valve clearance....3392
Measuring compression pressure....3394
Measuring blow-by pressure....3398
Measuring engine oil pressure....3399
Measuring fuel pressure....3400
Handling during cylinder cut-out operation....3404
Handling during no injection cranking operation....3404
Measuring fuel return rate and leakage....3405
Bleeding air from fuel circuit....3407
Checking fuel circuit for leakage....3408
Checking and adjusting air compressor belt tension....3409
Measuring clearance in swing circle bearings....3410
Checking and adjusting track shoe tension....3411
Checking and adjusting oil pressure in work equipment, swing and travel circuit....3412
Checking and adjusting control circuit oil pressure....3416
Checking and adjusting pump PC control circuit oil pressure....3417
Checking and adjusting pump LS control circuit oil pressure....3420
Measuring solenoid valve output pressure....3425
Measuring PPC valve output pressure....3429
Adjusting play of work equipment and swing PPC valves....3430
Inspecting locations of hydraulic drift of work equipment....3431
Releasing remaining pressure in hydraulic circuit....3433
Measuring oil leakage amount....3433
Bleeding air from various parts....3436
Diode inspection procedures....3438
30 Testing and adjusting....3440
Testing and adjusting, Part 2....3440
Testing and adjusting, Part 2....3441
Special functions of machine monitor....3441
Handling voltage circuit of engine controller....3468
Procedure for turning on KOMTRAX terminal....3469
KOMTRAX terminal lamp indications....3472
Preparation work for troubleshooting of electrical system....3475
Pm clinic service....3478
40 Troubleshooting....3484
General information on troubleshooting....3484
Information related to troubleshooting....3485
Points to remember when troubleshooting....3485
Sequence of events in troubleshooting....3486
Checks before troubleshooting....3487
Classification and troubleshooting steps....3488
Connection table for connector pin numbers....3492
T-boxes and T-adapters table....3515
40 Troubleshooting....3520
Troubleshooting by failure code (Display of code), Part 1....3520
Troubleshooting by failure code (Display of code), Part 1....3522
Failure codes table....3522
Before carrying out troubleshooting when failure code is displayed....3525
Information in troubleshooting table....3529
Failure code [A000N1] Eng. Hi Out of Std....3531
Failure code [AA10NX] Air cleaner Clogging....3532
Failure code [AB00KE] Charge Voltage Low....3533
Failure code [B@BAZG] Eng Oil Press. Low....3535
Failure code [B@BAZK] Eng Oil Level Low....3537
Failure code [B@BCNS] Eng. Water Overheat....3539
Failure code [B@BCZK] Eng Water Level Low....3541
Failure code [B@HANS] Hydr Oil Overheat....3542
Failure code [CA111] EMC Critical Internal Failure....3543
Failure code [CA115] Eng Ne and Bkup Speed Sens Error....3543
Failure code [CA122] Chg Air Press Sensor High Error....3545
Failure code [CA123] Chg Air Press Sensor Low Error....3547
Failure code [CA131] Throttle Sensor High Error....3549
Failure code [CA132] Throttle Sensor Low Error....3551
Failure code [CA144] Coolant Temp Sens High Error....3553
Failure code [CA145] Coolant Temp Sens Low Error....3555
Failure code [CA153] Chg Air Temp Sensor High Error....3557
Failure code [CA154] Chg Air Temp Sensor Low Error....3559
Failure code [CA187] Sens Supply 2 Volt Low Error....3561
Failure code [CA221] Ambient Press Sens High Error....3563
Failure code [CA222] Ambient Press Sens Low Error....3565
Failure code [CA227] Sens Supply 2 Volt High Error....3567
Failure code [CA234] Eng Overspeed....3568
Failure code [CA238] Ne Speed Sens Supply Volt Error....3569
Failure code [CA271] IMV/PCV1 Short Error....3570
Failure code [CA272] IMV/PCV1 Open Error....3571
Failure code [CA322] Inj #1 Open/Short Error....3573
Failure code [CA323] Inj #5 Open/Short Error....3575
Failure code [CA324] Inj #3 Open/Short Error....3577
Failure code [CA325] Inj #6 Open/Short Error....3579
Failure code [CA331] Inj #2 Open/Short Error....3581
Failure code [CA332] Inj #4 Open/Short Error....3583
40 Troubleshooting....3586
Troubleshooting by failure code (Display of code), Part 2....3586
Troubleshooting by failure code (Display of code), Part 2....3588
Failure code [CA342] Calibration Code Incompatibility....3588
Failure code [CA351] Injectors Drive Circuit Error....3589
Failure code [CA352] Sens Supply 1 Volt Low Error....3591
Failure code [CA386] Sens Supply 1 Volt High Error....3593
Failure code [CA428] Water in Fuel Sensor High Error....3595
Failure code [CA429] Water in Fuel Sensor Low Error....3597
Failure code [CA441] Battery Voltage Low Error....3599
Failure code [CA442] Battery Voltage High Error....3601
Failure code [CA449] Rail Press Very High Error....3603
Failure code [CA451] Rail Press Sensor High Error....3607
Failure code [CA452] Rail Press Sensor Low Error....3609
Failure code [CA553] Rail Press High Error....3611
Failure code [CA559] Rail Press Low Error....3613
Failure code [CA689] Eng Ne Speed Sensor Error....3615
Failure code [CA731] Eng Bkup Speed Sens Phase Error....3617
Failure code [CA757] All Persistent Data Lost Error....3619
Failure code [CA778] Eng Bkup Speed Sensor Error....3621
Failure code [CA1633] KOMNET Datalink Timeout Error....3623
Failure code [CA2185] Throt Sens Sup Volt High Error....3625
Failure code [CA2186] Throt Sens Sup Volt Low Error....3626
Failure code [CA2249] Rail Press Very Low Error....3627
Failure code [CA2265] Electric Lift Pump High Error....3629
Failure code [CA2266] Electric Lift Pump Low Error....3631
Failure code [CA2555] Grid Htr Relay Volt High Error....3633
Failure code [CA2556] Grid Htr Relay Volt Low Error....3635
Failure code [D110KB] Battery Relay Drive S/C....3637
Failure code [D196KA] Service Return Relay Disc....3639
Failure code [D196KB] Service Return Relay S/C....3641
Failure code [DA25KP] Press. Sensor Power Abnormality....3643
Failure code [DA2RMC] Pump Comm. Abnormality....3645
Failure code [DA2SKQ] Model Selection Abnormality....3647
40 Troubleshooting....3650
Troubleshooting by failure code (Display of code), Part 3....3650
Troubleshooting by failure code (Display of code), Part 3....3653
Failure code [DAFRMC] Monitor Comm. Abnormality....3653
Failure code [DHPAMA] F Pump Press Sensor Abnormality....3655
Failure code [DHPBMA] R Pump Press Sensor Abnormality....3657
Failure code [DHS3MA] Arm Curl PPC Sen. Abnormality....3659
Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality....3661
Failure code [DW43KA] Travel Speed Sol. Disc....3663
Failure code [DW43KB] Travel Speed Sol. S/C....3665
Failure code [DW45KA] Swing Brake Sol. Disc....3668
Failure code [DW45KB] Swing Brake Sol. S/C....3671
Failure code [DW91KA] Travel Junction Sol. Disc....3673
Failure code [DW91KB] Travel Junction Sol. S/C....3675
Failure code [DWJ0KA] Merge-divider Sol. Disc....3677
Failure code [DWJ0KB] Merge-divider Sol. S/C....3679
Failure code [DWK0KA] 2-stage Relief Sol. Disc....3681
Failure code [DWK0KB] 2-stage Relief Sol. S/C....3683
Failure code [DXA0KA] PC-EPC Sol. Disc....3685
Failure code [DXA0KB] PC-EPC Sol. S/C....3687
Failure code [DXE0KA] LS-EPC Sol. Disc....3689
Failure code [DXE0KB] LS-EPC Sol. S/C....3691
Failure code [DXE4KA] Service Current EPC Disc....3693
Failure code [DXE4KB] Service Current EPC S/C....3694
Failure code [DY20KA] Wiper Working Abnormality....3695
Failure code [DY20MA] Wiper Parking Abnormality....3697
Failure code [DY2CKB] Washer Drive S/C....3699
Failure code [DY2DKB] Wiper Drive (For) S/C....3701
Failure code [DY2EKB] Wiper Drive (Rev) S/C....3703
40 Troubleshooting....3706
Troubleshooting of electrical system (E-mode)....3706
Troubleshooting of electrical system (E-mode)....3709
Before carrying out troubleshooting of electrical system....3709
Information contained in troubleshooting table....3711
E-1 Engine does not start....3712
E-2 Auto-decelerator does not operate....3715
E-3 Automatic warming-up system does not operate....3717
E-4 Preheater does not operate....3719
E-5 All work equipment, swing, and travel mechanism do not move....3721
E-6 Power maximizing function does not operate....3723
E-7 Machine monitor does not display at all....3724
E-8 Machine monitor does not display some items....3725
E-9 Contents of display by machine monitor are different from applicable machine....3725
E-10 Fuel level monitor was lighted in red while engine running....3726
E-11 Engine coolant temperature gauge does not indicate normally....3727
E-12 Hydraulic oil temperature gauge does not indicate normally....3729
E-13 Fuel level gauge does not indicate normally....3730
E-14 Swing lock monitor does not indicate normally....3731
E-15 When monitor switch is operated, monitor displays nothing....3733
E-16 Windshield wiper and window washer do not operate....3735
E-17 Machine push-up function does not operate normally....3739
E-18 Monitoring function fails to display boom raise normally....3741
E-19 Monitoring function fails to display boom lower normally....3742
E-20 Monitoring function fails to display arm IN normally....3743
E-21 Monitoring function fails to display arm OUT normally....3744
E-22 Monitoring function fails to display bucket CURL normally....3745
E-23 Monitoring function fails to display bucket DUMP normally....3746
E-24 Monitoring function fails to display swing normally....3747
E-25 Monitoring function fails to display travel normally....3749
E-26 Monitoring function fails to display travel differential pressure normally....3751
E-27 Monitoring function fails to display service normally....3753
E-28 KOMTRAX system does not operate normally....3755
E-29 Air conditioner does not operate....3757
E-30 Travel alarm does not sound or does not stop sounding....3759
E-31 Horn does not sound....3761
40 Troubleshooting....3764
Troubleshooting of hydraulic and mechanical system (H-mode)....3764
Troubleshooting of hydraulic and mechanical system (H- mode)....3767
System chart for hydraulic and mechanical system....3767
Information contained in troubleshooting table....3769
H-1 All work equipment lack power, or travel and swing speeds are slow....3771
H-2 Engine speed sharply drops or engine stalls....3773
H-3 No work equipment, swing or travel move....3774
H-4 Abnormal noise is heard from around hydraulic pump....3774
H-5 Auto-decelerator does not work....3775
H-6 Fine control mode does not function or responds slow....3775
H-7 Boom moves slowly or lacks power....3776
H-8 Arm moves slowly or lacks power....3777
H-9 Bucket moves slowly or lacks power....3778
H-10 Work equipment does not move in its single operation....3778
H-11 Work equipment has a bit too fast hydraulic drift....3779
H-12 Work equipment has big time lag....3781
H-13 Other work equipment moves when relieving single circuit....3781
H-14 Power max. switch does not operate....3782
H-15 In compound operation, work equipment with larger load moves slowly....3782
H-16 In swing + boom RAISE operation, boom moves slowly....3783
H-17 In swing + travel operation, travel speed drops sharply....3783
H-18 Machine swerves in travel....3784
H-19 Machine travels slowly....3785
H-20 Machine cannot be easily steered or lacks power....3786
H-21 Travel speed does not shift, or it is too slow or fast....3787
H-22 Track shoe does not turn (on one side only)....3788
H-23 Machine does not swing....3789
H-24 Swing acceleration is poor, or swing speed is slow....3791
H-25 Excessive overrun when stopping swing....3793
H-26 There is big shock when stopping swing....3794
H-27 Large sound is made when upper structure stops swinging....3794
H-28 Swing hydraulic drift is too big....3795
40 Troubleshooting....3798
Troubleshooting of engine (S-mode)....3798
Troubleshooting of engine (S-mode)....3800
Method of using troubleshooting chart....3800
S-1 Starting performance is poor....3803
S-2 Engine does not start....3804
S-3 Engine does not pick up smoothly....3807
S-4 Engine stops during operations....3808
S-5 Engine does not rotate smoothly....3809
S-6 Engine lacks output (or lacks power)....3810
S-7 Exhaust smoke is black (incomplete combustion)....3811
S-8 Oil consumption is excessive (or exhaust smoke is blue)....3812
S-9 Oil becomes contaminated quickly....3813
S-10 Fuel consumption is excessive....3814
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)....3815
S-12 Oil pressure drops....3816
S-13 Oil level rises (Entry of coolant or fuel)....3817
S-14 Coolant temperature becomes too high (overheating)....3818
S-15 Abnormal noise is made....3819
S-16 Vibration is excessive....3820
50 Disassembly and assembly....3822
General information on disassembly and assembly....3822
General information on disassembly and assembly....3823
How to read this manual....3823
Coating materials list....3825
Special tools list....3828
Sketches of special tools....3832
50 Disassembly and assembly....3836
Engine and cooling system....3836
Engine and cooling system....3837
Removal and installation of fuel supply pump assembly....3837
Removal and installation of engine front seal....3840
Removal and installation of engine rear seal....3842
Removal and installation of cylinder head assembly....3847
Removal and installation of radiator assembly....3857
Removal and installation of hydraulic oil cooler assembly....3859
Removal and installation of aftercooler assembly....3861
Removal and installation of engine and hydraulic pump assembly....3862
50 Disassembly and assembly....3868
Power train....3868
Power train....3869
Removal and installation of final drive assembly....3869
Disassembly and assembly of final drive assembly....3870
Removal and installation of swing motor and swing machinery assembly....3878
Disassembly and assembly of swing motor and swing machinery assembly....3879
Removal and installation of swing circle assembly....3886
50 Disassembly and assembly....3888
Undercarriage and frame....3888
Undercarriage and frame....3889
Disassembly and assembly of carrier roller....3889
Disassembly and assembly of track roller assembly....3890
Disassembly and assembly of idler assembly....3891
Disassembly and assembly of recoil spring....3894
Removal and installation of sprocket....3896
Expansion and installation of track shoe assembly....3897
Removal and installation of revolving frame assembly....3898
Removal and installation of counterweight assembly....3900
50 Disassembly and assembly....3902
Hydraulic system....3902
Hydraulic system....3903
Removal and installation of center swivel joint assembly....3903
Disassembly and assembly of center swivel joint assembly....3905
Removal and installation of hydraulic tank assembly....3906
Removal and installation of control valve assembly....3908
Disassembly and assembly of control valve assembly....3911
Removal and installation of hydraulic pump assembly....3913
Removal and installation of oil seal in hydraulic pump input shaft....3916
Disassembly and assembly of work equipment PPC valve assembly....3917
Disassembly and assembly of travel PPC valve assembly....3918
Disassembly and assembly of hydraulic cylinder assembly....3919
50 Disassembly and assembly....3926
Work equipment....3926
Work equipment....3927
Removal and installation of work equipment assembly....3927
50 Disassembly and assembly....3932
Cab and its attachments....3932
Cab and its attachments....3933
Removal and installation of operator's cab assembly....3933
Removal and installation of operators cab glass (stuck glass)....3935
Removal and installation of front window assembly....3944
50 Disassembly and assembly....3952
Electrical system....3952
Electrical system....3953
Removal and installation of work equipment assembly....3953
Removal and installation of machine monitor....3955
Removal and installation of pump controller....3955
Removal and installation of KOMTRAX terminal....3956
Removal and installation of engine controller....3956
90 Diagrams and drawings....3958
Hydraulic diagrams and drawings....3958
90 Diagrams and drawings....3966
Electrical diagrams and drawings....3966
UEPB005302 - Hydraulic Excavator PC340LCD-7K, PC340NLCD-7K Parts Book....3982
PC340LCD NLCD-7K FRONT.pdf....0
PARTS BOOK....3982
HYDRAULIC EXCAVATOR....3982
HIGH REACH DEMOLITION MACHINE....3982
MACHINE SERIAL NUMBER....3982
K40575 and up....3982
