John Deere 325SL Backhoe Loader Operation & Test Service Manual (TM13307X19)
Complete Diagnostics and Test manual with Electrical Wiring Diagrams for John Deere 325SL Backhoe Loaders, with all the shop information to maintain, diagnostic, repair, refurbish/rebuild like professional mechanics.
John Deere 325SL Backhoe Loader workshop service 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.
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Published on 2019/06/05
PRODUCT DETAILS:
Total Pages: 1,503 pages
File Format: PDF (Windows & Mac & Linux)
Language: English Russian Spanish French
Covered models: 325SL (PIN: 1T0325SL**C273920-)
MAIN SECTIONS
Foreword
Manual Identification-READ THIS FIRST!
General Information
Safety
Diagnostics
Engine Control Unit (ECU) Diagnostic Trouble Codes
Standard Display Monitor (SDM) Diagnostic Trouble Codes
Transmission Control Unit (TCU) Diagnostic Trouble Codes
Vehicle Control Unit (VCU) Diagnostic Trouble Codes
Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes
Sealed Switch Module (SSM) Diagnostic Trouble Codes
Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes
Operational Checkout Procedure
Operational Checkout Procedure
Engine
Theory of Operation
System Diagrams
Diagnostic Information
Adjustments
Tests
Electrical System
Theory of Operation
System Diagrams
Diagnostic Information
Monitor Operation
Diagnostic Test Box
Adjustments
Tests
Power Train
Theory of Operation
System Diagrams
Diagnostic Information
Adjustments
Tests
Hydraulic System
Theory of Operation
System Diagrams
Diagnostic Information
Adjustments
Tests
Heating and Air Conditioning
Theory of Operation
System Diagrams
Diagnostic Information
Tests
TABLE OF CONTENTS...1
Section 9000: General Information...27
Group 01: Safety...27
Recognize Safety Information...30
Follow Safety Instructions...31
Operate Only If Qualified...32
Wear Protective Equipment...33
Protect Against Noise...34
Avoid Unauthorized Machine Modifications...35
Control Pattern...36
Inspect Machine...37
Stay Clear of Moving Parts...38
Avoid High-Pressure Fluids...39
Avoid High-Pressure Oils...40
Work In Ventilated Area...41
Avoid Static Electricity Risk When Refueling...42
High Debris Applications...44
Prevent Fires...45
In Case of Machine Fire...46
Prevent Battery Explosions...47
Handle Chemical Products Safely...48
Decommissioning — Proper Recycling and Disposal of Fluids and Components...49
Prepare for Emergencies...50
Clean Debris from Machine...51
Add Cab Guarding for Special Uses...52
Handle Starting Fluid Safely...53
Use Steps and Handholds Correctly...54
Start Only From Operator's Seat...55
Use and Maintain Seat Belt...56
Prevent Unintended Machine Movement...57
Prevent Unintended Machine Movement—If Equipped With Pilot Controls...58
Avoid Work Site Hazards...59
Keep Riders Off Machine...61
Avoid Backover Accidents...62
Avoid Machine Tipover...63
Operate Boom With Care...64
Avoid Power Lines...65
Operating on Slopes...66
Operating or Traveling On Public Roads...67
Inspect and Maintain ROPS...68
Travel Safely...69
Prevent Acid Burns...70
Add and Operate Attachments Safely...72
Use Special Care When Operating...73
Park and Prepare for Service Safely...74
Service Cooling System Safely...75
Service Accumulator Systems Safely...76
Remove Paint Before Welding or Heating...77
Make Welding Repairs Safely...78
Drive Metal Pins Safely...79
Service Tires Safely...80
Section 9001: Diagnostics...81
Group 01: General Information...81
Diagnostic Trouble Code Designations...94
Group 10: Engine Control Unit (ECU) Diagnostic Trouble Codes...99
Engine Control Unit (ECU) Diagnostic Trouble Codes...99
000029.03 - Hand Throttle...81
000029.04 - Hand Throttle...81
000029.14 - Hand Throttle...81
000091.03 - Foot Throttle...81
000091.04 - Foot Throttle...81
000091.14 - Foot Throttle...81
000237.02 - Vehicle ID...81
000237.13 - Vehicle ID...81
000237.31 - Vehicle ID...81
002071.09 - No CAN From VCU...81
003353.31 - Alternator Output...81
524225.31 - Engine Start...81
Group 20: Standard Display Monitor (SDM) Diagnostic Trouble Codes...121
Standard Display Monitor (SDM) Diagnostic Trouble Codes...121
000096.03 - Fuel Level Sensor...81
000096.04 - Fuel Level Sensor...81
000168.03 - Battery Voltage...81
000237.02 - Vehicle ID...81
000237.13 - Vehicle ID...81
000237.31 - Vehicle ID...81
000628.12 - Programming...81
000629.12 - Controller Fault...81
000920.12 - Alarm Output...81
001196.11 - Security...81
002000.09 - No CAN from ECU...81
002003.09 - No CAN from TCU...81
002071.09 - No CAN from VCU...81
002072.09 - System Message...82
002251.09 - No CAN from MTG...82
003509.03 - Sensor Supply 1...82
003509.04 - Sensor Supply 1...82
524082.07 - Display Buttons...82
Group 30: Transmission Control Unit (TCU) Diagnostic Trouble Codes...146
Transmission Control Unit (TCU) Diagnostic Trouble Codes...146
000070.14 - Park Brake...82
000177.00 - Trans Oil Temp...82
000177.04 - Trans Oil Temp...82
000191.03 - Transmission Speed...82
000191.04 - Transmission Speed...82
000525.02 - Requested Gear...82
000525.03 - Requested Gear...82
000525.05 - Requested Gear...82
000629.12 - Controller Fault...82
000734.03 - Y1 Solenoid...82
000734.04 - Y1 Solenoid...82
000734.05 - Y1 Solenoid...82
000734.06 - Y1 Solenoid...82
000735.03 - Y2 Solenoid...82
000735.04 - Y2 Solenoid...82
000735.05 - Y2 Solenoid...82
000735.06 - Y2 Solenoid...82
000736.03 - Y3 Solenoid...82
000736.05 - Y3 Solenoid...82
000736.06 - Y3 Solenoid...82
000737.03 - Y4 Solenoid...82
000737.05 - Y4 Solenoid...82
000737.06 - Y4 Solenoid...82
000738.03 - Y5 Solenoid...82
000738.05 - Y5 Solenoid...82
000738.06 - Y5 Solenoid...82
000739.03 - Y6 Solenoid...83
000739.05 - Y6 Solenoid...83
000739.06 - Y6 Solenoid...83
000746.03 - Differential Lock...83
000746.05 - Differential Lock...83
000746.06 - Differential Lock...83
000880.03 - Brake Lights...83
000880.05 - Brake Lights...83
000880.06 - Brake Lights...83
002000.09 - System Message...83
002023.09 - System Message...83
002071.09 - System Message...83
002072.09 - System Message...83
002392.03 - Reverse Alarm...83
002392.06 - Reverse Alarm...83
002612.03 - MFWD Solenoid...83
002612.05 - MFWD Solenoid...83
002612.06 - MFWD Solenoid...83
522379.03 - Park Brake...83
522379.04 - Park Brake...83
522379.05 - Park Brake...83
522379.06 - Park Brake...83
522411.02 - TCL Selector...83
522411.03 - TCL Selector...83
522411.05 - TCL Selector...83
524172.03 - Clutch Disconnect...83
Group 40: Vehicle Control Unit (VCU) Diagnostic Trouble Codes...246
Vehicle Control Unit (VCU) Diagnostic Trouble Codes...246
000168.03 - Battery Voltage...83
000237.02 - Vehicle ID...83
000237.13 - Vehicle ID...83
000237.31 - Vehicle ID...83
000628.12 - Programming...83
000629.12 - Control Unit...84
000639.12 - Communication...84
000639.14 - Communication...84
000677.03 - Start Relay...84
000677.05 - Start Relay...84
000677.06 - Start Relay...84
001321.16 - Starter Relay...84
001638.00 - HYD OIL TEMP...84
001638.04 - HYD OIL TEMP...84
001638.16 - HYD OIL TEMP...84
001713.00 - Hyd Oil Restriction...84
002142.09 - System Message...84
002228.12 - EH Watchdog...84
002347.03 - Front Light Switch...84
002347.04 - Front Light Switch...84
002350.06 - Drive Lights...84
002354.06 - Front Work Lights...84
002356.06 - Front Work Lights...84
002360.06 - Rear Work Lights...84
002362.06 - Rear Work Lights...84
002366.06 - Side Work Lights...84
002368.03 - Left Flasher...84
002368.05 - Left Flasher...84
002368.06 - Left Flasher...84
002370.03 - Right Flasher...84
002370.05 - Right Flasher...84
002370.06 - Right Flasher...84
002378.03 - Marker Light...84
002378.05 - Marker Light...84
002378.06 - Marker Light...84
002863.02 - Wiper Switch...84
002876.04 - Turn Signal Switch...84
003509.03 - Sensor Supply 1...84
003509.04 - Sensor Supply 1...85
003510.03 - Sensor Supply 2...85
003510.04 - Sensor Supply 2...85
003997.03 - Accessory Relay...85
003997.05 - Accessory Relay...85
003997.06 - Accessory Relay...85
004086.03 - Valve LS Pressure...85
004086.04 - Valve LS Pressure...85
004086.14 - Valve LS Pressure...85
004088.03 - Pump LS Pressure...85
004088.04 - Pump LS Pressure...85
004089.03 - Pump Out Pressure...85
004089.04 - Pump Out Pressure...85
516859.14 - Pump Control...85
516860.14 - Pump Margin Pressure...85
517120.03 - Loader Boom Rod Press...85
517120.04 - Loader Boom Rod Press...85
520416.05 - Valve Power...85
520546.07 - Pilot Enable Switch...85
520688.03 - Pilot Enable Driver...85
520688.05 - Pilot Enable Driver...85
520688.06 - Pilot Enable Driver...85
520696.03 - Pattern Select Driver...85
520696.05 - Pattern Select Driver...85
520696.06 - Pattern Select Driver...85
520713.03 - Seat Position...85
520713.04 - Seat Position...85
520713.13 - Seat Position...85
522312.03 - Front Washer...85
522312.05 - Front Washer...85
522312.06 - Front Washer...85
522426.03 - Rear Wiper Park...85
522426.04 - Rear Wiper Park...85
522427.03 - Front Wiper Park...86
522427.04 - Front Wiper Park...86
522433.03 - Rear Wiper...86
522433.05 - Rear Wiper...86
522433.06 - Rear Wiper...86
522434.03 - Front Wiper Low...86
522434.05 - Front Wiper Low...86
522434.06 - Front Wiper Low...86
522435.03 - Front Wiper High...86
522435.05 - Front Wiper High...86
522435.06 - Front Wiper High...86
523307.03 - Crank Signal...86
523307.04 - Crank Signal...86
523911.03 - Pump Control...86
523911.04 - Pump Control...86
523911.05 - Pump Control...86
523911.06 - Pump Control...86
523911.13 - Pump Control...86
523911.16 - Pump Control...86
523911.18 - Pump Control...86
523948.03 - Ride Control...86
523948.05 - Ride Control...86
523948.06 - Ride Control...86
Group 50: Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes...417
Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes...417
000168.03 - Battery Voltage...86
000237.02 - Vehicle ID...86
000237.13 - Vehicle ID...86
000237.31 - Vehicle ID...86
000629.12 - Control Unit...86
002701.03 - BH Aux Roller...86
002701.04 - BH Aux Roller...86
002701.07 - BH Aux Roller...86
002738.03 - Extendable Roller...87
002738.04 - Extendable Roller...87
002738.07 - Extendable Roller...87
520425.07 - System Message...87
520426.07 - System Message...87
520542.03 - System Message...87
520543.04 - System Message...87
523934.00 - Extendable Sol A...87
523934.01 - Extendable Sol A...87
523934.03 - Extendable Sol A...87
523934.04 - Extendable Sol A...87
523934.05 - Extendable Sol A...87
523934.06 - Extendable Sol A...87
523940.00 - Extendable Sol B...87
523940.01 - Extendable Sol B...87
523940.03 - Extendable Sol B...87
523940.04 - Extendable Sol B...87
523940.05 - Extendable Sol B...87
523940.06 - Extendable Sol B...87
524010.00 - Selective Flow...87
524010.01 - Selective Flow...87
524010.03 - Selective Flow...87
524010.04 - Selective Flow...87
524010.05 - Selective Flow...87
524010.06 - Selective Flow...87
Group 60: Sealed Switch Module (SSM) Diagnostic Trouble Codes...471
Sealed Switch Module (SSM) Diagnostic Trouble Codes...471
002033.09 - System Message...87
002634.04 - Ignition Relay Circuit Fault...87
002634.05 - Ignition Relay Circuit Fault...87
521274.09 - System Message...87
523850.04 - SSM Button Stuck...87
523850.09 - System Message...87
523852.04 - SSM Button Stuck...88
523852.09 - System Message...88
523854.04 - SSM Button Stuck...88
523854.09 - System Message...88
523855.04 - SSM Button Stuck...88
523855.09 - System Message...88
523856.04 - SSM Button Stuck...88
523856.09 - System Message...88
523857.04 - SSM Button Stuck...88
523857.09 - System Message...88
523858.04 - SSM Button Stuck...88
523858.09 - System Message...88
523860.04 - SSM Button Stuck...88
523860.09 - System Message...88
523861.04 - SSM Button Stuck...88
523861.09 - System Message...88
523862.04 - SSM Button Stuck...88
523862.09 - System Message...88
523863.04 - SSM Button Stuck...88
523863.09 - System Message...88
523864.04 - SSM Button Stuck...88
523864.09 - System Message...88
523865.04 - SSM Button Stuck...88
523865.09 - System Message...88
523867.04 - SSM Button Stuck...88
523867.09 - System Message...88
523868.04 - SSM Button Stuck...88
523868.09 - System Message...88
Group 70: Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes...509
Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes...509
000158.03 - System Voltage...88
002664.03 - Ldr Aux Roller...88
002664.04 - Ldr Aux Roller...88
002664.07 - Ldr Aux Roller...89
003509.03 - SENSOR SUPPLY 1...89
003509.04 - SENSOR SUPPLY 1...89
520669.00 - Loader Aux Pressure...89
520669.01 - Loader Aux Pressure...89
520669.03 - Loader Aux Sol A...89
520669.04 - Loader Aux Sol A...89
520669.05 - Loader Aux Sol A...89
520669.06 - Loader Aux Sol A...89
520687.03 - Backhoe Coupler...89
520687.05 - Backhoe Coupler...89
520687.06 - Backhoe Coupler...89
523404.00 - Backhoe Aux Pressure...89
523404.01 - Backhoe Aux Pressure...89
523440.04 - System Voltage...89
523935.03 - Backhoe Aux Sol A...89
523935.04 - Backhoe Aux Sol A...89
523935.05 - Backhoe Aux Sol A...89
523935.06 - Backhoe Aux Sol A...89
Section 9005: Operational Checkout Procedure...607
Group 10: Operational Checkout Procedure...607
Operational Checkout Procedure...607
Section 9010: Engine...669
Group 05: Theory of Operation...669
John Deere Engine Operation...717
Engine Cooling System Operation...674
Cold Start Aid System Operation...676
Group 10: System Diagrams...669
Engine Intake and Exhaust Component Location...682
Engine Fuel System Component Location...686
Engine Cooling System Component Location...697
Group 15: Diagnostic Information...669
John Deere Engine Operation...717
Engine Identification...705
Group 20: Adjustments...669
John Deere Engine Operation...717
Group 25: Tests...669
John Deere Engine Operation...717
Fluid Sampling Procedure...719
Air in Fuel Test...724
Engine Speed Check...725
Engine Thermostat Test...727
Thermal Bypass Valve Test...728
Intake Manifold Pressure—Turbocharger Boost...730
Section 9015: Electrical System...734
Group 05: Theory of Operation...734
Controller Area Network (CAN) Circuit Theory of Operation...742
Local Interconnect Network (LIN) Circuit Theory of Operation...746
Engine Control Unit (ECU) Circuit Theory of Operation...747
Vehicle Control Unit (VCU) Circuit Theory of Operation...764
Standard Display Monitor (SDM) Circuit Theory of Operation...768
Start and Charge Circuit Theory of Operation...770
Hydraulic System Circuit Theory of Operation...783
Transmission Control Circuit Theory of Operation...793
Auxiliary Valve Controller (AVC) Circuit Theory of Operation...799
Horn, Lights, and Beacon Circuit Theory of Operation...802
Wiper and Washer Circuit Theory of Operation...807
JDLink™ Circuit Theory of Operation...813
Group 10: System Diagrams...734
Electrical Diagram Information...820
Electrical Schematic Symbols...824
System Functional Schematic and Section Legend...827
System Functional Schematic, Wiring Diagram, and Component Location Legend...832
Fuse and Relay Location and Specifications...840
Power and Ground Component Location...848
Horn and Coolant Level Harness (W7) Wiring Diagram...849
Horn and Coolant Level Harness (W7) Component Location...852
Engine Harness (W10) Wiring Diagram...854
Engine Harness (W10) Component Location...858
Transmission Harness (W13) Wiring Diagram...860
Transmission Harness (W13) Component Location...862
Cab Harness (W14) Wiring Diagram...864
Cab Harness (W14) Component Location...877
Roof Harness (W17) Wiring Diagram...883
Roof Harness (W17) Component Location...884
Heater and Air Conditioner Harness (W19) Wiring Diagram...885
Heater and Air Conditioner Harness (W19) Component Location...886
Auxiliary Valve Control Harness (W23) Wiring Diagram...887
Auxiliary Valve Control Harness (W23) Component Location...888
Start Aid Switch Harness (W24) Wiring Diagram—If Equipped...890
Start Aid Switch Harness (W24) Component Location—If Equipped...891
Ride Control Solenoid Harness (W27) Wiring Diagram...892
Ride Control Solenoid Harness (W27) Component Location...893
Selective Flow Solenoid Harness (W28) Wiring Diagram...894
Selective Flow Solenoid Harness (W28) Component Location...895
Loader Auxiliary Solenoid Harness (W29) Wiring Diagram...896
Loader Auxiliary Solenoid Harness (W29) Component Location...897
Pilot Enable Pattern Select Valve Harness (W30) Wiring Diagram...898
Pilot Enable Pattern Select Valve Harness (W30) Component Location...900
Pilot Enable Switch Harness (W31) Wiring Diagram...901
Pilot Enable Switch Harness (W31) Component Location...902
Return-to-Dig Harness (W32) Wiring Diagram...903
Return-to-Dig Harness (W32) Component Location...904
Operator’s Seat Harness (W33) Wiring Diagram (S.N. 329328— )...905
Operator’s Seat Harness (W33) Component Location (S.N. 329328— )...906
Heated Seat Control Harness (W34) Wiring Diagram—If Equipped...908
Heated Seat Control Harness (W34) Component Location—If Equipped...909
Rear Frame Harness (W38) Wiring Diagram...910
Rear Frame Harness (W38) Component Location...911
Air Conditioner Compressor Clutch Harness (W39) Wiring Diagram...913
Air Conditioner Compressor Clutch Harness (W39) Component Location...914
Pilot Control and Selective Flow Harness (W41) Wiring Diagram...915
Pilot Control and Selective Flow Harness (W41) Component Location...917
Extendable Dipperstick Harness (W45) Wiring Diagram...919
Extendable Dipperstick Harness (W45) Component Location...920
Radio Harnesses (W51, W52, W53, and W54) Wiring Diagrams...921
Radio Harnesses (W51, W52, W53, W54, and W55) Component Location...927
Blower Mode Door Motor Harness (W56) Wiring Diagram...931
Blower Mode Door Motor Harness (W56) Component Location...932
Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram...933
Modular Telematics Gateway (MTG) Harness (W6002) Component Location...936
Group 15: Diagnostic Information...736
Electrical Component Specifications...946
Service ADVISOR™ Diagnostic Application...954
Service ADVISOR™ Connection Procedure...955
Reading Diagnostic Trouble Codes (DTCs) With Service ADVISOR™ Diagnostic Application...957
Intermittent Diagnostic Trouble Code (DTC) Diagnostics...960
Using Service ADVISOR™ Remote...961
JDLink™ Connection Procedure...964
Group 16: Monitor Operation...736
Service Mode...967
Operation—Software Delivery...969
Diagnostics—Clear Stored Diagnostic Trouble Codes (DTCs)...970
Diagnostics—Engine...971
Diagnostics—Electrical, Lights...973
Diagnostics—Transmission...976
Diagnostics—Hydraulics...979
Diagnostics—Buttons...983
Diagnostics—Service Advisor...984
Diagnostics—Sensors...985
Setup—Machine Master Code...986
Setup—Monitor...987
Setup—Auto-Idle...988
Setup—Auto-Shutdown...989
Setup—Calibrations...990
Setup—Hydraulics...991
Setup—Ignition Shutdown...992
Setup—Transmission...993
Group 17: Diagnostic Test Box...736
Setup and Functional Test...1004
Two Wire Sensor Circuit Check—Out of Range High...1013
Two Wire Sensor Circuit Check—Out of Range Low...1015
Three Wire Sensor Circuit Check—Out of Range High...1017
Three Wire Sensor Circuit Check—Out of Range Low...1019
Group 20: Adjustments...737
Load Sense Generation Valve Calibration...1022
Auxiliary Selective Flow Control Valve Calibration—If Equipped...1023
Backhoe Auxiliary Calibration—If Equipped...1024
Loader Auxiliary Calibration—If Equipped...1025
Extendable Dipperstick Calibration—If Equipped...1026
Group 25: Tests...737
CAN Circuit Test...1039
Controller Area Network (CAN) Resistor Test...1051
Auxiliary Selective Flow Control Circuit Test...1053
Throttle Position Sensor Test...1055
Alternator Test...1056
Relay Test...1060
Wire Harness Test...1062
Sensor Circuit Test...1063
Engine Speed Control Pedal Test...1065
Section 9020: Power Train...1068
Group 05: Theory of Operation...1068
Power Train Overview...1073
Transmission Pump Operation...1076
Torque Converter Operation...1077
Clutch Modulation Operation...1079
Clutch Pack Operation...1081
Clutch Engagement and Solenoid Activation...1082
Transmission Gear Flow...1083
Differential Operation...1086
Differential Lock Operation...1087
Mechanical Front Wheel Drive (MFWD) Operation—If Equipped...1089
Mechanical Front Wheel Drive (MFWD) Differential Operation—If Equipped...1091
Park Brake Operation...1093
Power Boost Service Brake Valve Operation (S.N. —329327)...1095
Power Boost Service Brake Valve Operation (S.N. 329328— )...1103
Service Brake Operation...1110
Transmission Filter Operation...1111
Thermal Bypass Valve Operation...1112
Group 10: System Diagrams...1068
Power Train Component Location...1116
Power Train Schematic—First Forward...1118
Power Train Schematic—Neutral...1122
Group 15: Diagnostic Information...1068
Diagnose Transmission Malfunctions...1128
Transmission Overheats...1068
Transmission Slippage...1068
Excessive Power Train Noise...1068
No Differential Lock Operation...1087
Differential Lock Slips or Chatters When Engaged...1068
Differential Lock Will Not Release...1068
Machine Lacks Power or Moves Slow...1068
No Power to Mechanical Front Wheel Drive (MFWD)...1069
No Power to One Wheel of Mechanical Front Wheel Drive (MFWD)...1069
Park Brake Will Not Hold...1069
Park Brake Will Not Release...1069
Poor Service Brakes...1069
Brake Pedal Hard to Push...1069
Service Brakes Chatter or Noisy...1069
Service Brakes Dragging or Will Not Release...1069
Rear Axle Overfilled With Oil...1069
Group 20: Adjustments...1069
Mechanical Park Brake Release—Towing...1174
Service Brake Bleed Procedure...1177
Service Brake Pedal Adjustment...1184
Steering Angle Check and Adjust...1189
Toe-In Check and Adjust...1191
Tracking Angle Check and Adjust...1194
Group 25: Tests...1069
Transmission Overall Test Connections, Ports, and Locations...1198
Transmission Oil Warm-Up Procedure...1200
Transmission Pump Flow Test...1202
Transmission System Pressure Test...1205
Service Brake Boost Pressure Test...1208
Transmission Oil Sampling Procedure—If Equipped...1211
Torque Converter Stall Speed Test...1212
Torque Converter Inlet Pressure Test...1217
Clutch Pressure Test...1222
Solenoid Circuit Leakage Test...1225
Differential Lock Pressure Test...1227
Mechanical Front Wheel Drive (MFWD) Pressure Test...1230
Park Brake Release Pressure Test...1232
Power Boost Service Brake Valve Leakage Test...1234
Cooler In and Cooler Out Pressure Test...1237
Section 9025: Hydraulic System...1241
Group 05: Theory of Operation...1241
Hydraulic System Operation...1246
Load Sense System Operation...1248
Load Sense Generation Valve Operation...1249
Hydraulic Pump Operation...1251
Hydraulic Filter Operation...1254
System and Circuit Relief Valve Operation...1257
Backhoe Control Valve Operation...1264
Sideshift and Boom Lock (SBL) Valve Operation...1271
Pilot Control Valve Operation...1273
Pilot Enable and Pattern Select Valve Operation—If Equipped...1277
Loader and Stabilizer Control Valve Operation...1279
Loader Auxiliary Control Operation...1303
Ride Control Operation—If Equipped...1306
Steering Valve Operation...1308
Loader and Stabilizer Control Valve Steering Load Sense Isolator...1312
Group 10: System Diagrams...1241
Hydraulic System Schematic—Pilot Control...1321
Hydraulic System Component Location...1329
Hydraulic Main System Line Identification...1331
Hydraulic Backhoe System Line Identification...1333
Hydraulic Backhoe Pilot Controls System Line Identification...1335
Hydraulic Loader System Line Identification...1338
Hydraulic Ride Control System Line Identification...1340
Hydraulic Brake and Steering System Line Identification...1341
Hydraulic Sideshift and Boom Lock (SBL) System Line Identification...1344
Group 15: Diagnostic Information...1241
Low Hydraulic Power...1241
Slow Hydraulic Functions...1241
Hydraulic Function Makes "Chattering" Noise...1241
Hydraulic Oil Overheats...1241
Hydraulic Pump Leaking...1242
Excessive Pump Noise...1242
Foaming Oil...1242
Functions Drift...1242
Control Valve Sticks or Works Hard...1242
No Stabilizer Hydraulics...1242
No Loader or Steering Hydraulics...1242
No Backhoe Power in One Function...1242
Backhoe Operates Slowly in One Function...1242
Engine Pulls Down Excessively During Loader or Backhoe Operation...1242
No Loader Hydraulics...1242
No Loader Power in One Function...1242
Low Loader Hydraulic Power...1242
Loader Operates Slowly in One Function...1242
Erratic “Spongy” Steering...1242
Hard Steering, Loader Hydraulics OK...1242
No Response When Steering Wheel is Turned, Loader Hydraulics OK...1242
Slow Steering Hydraulics...1242
Excessive Steering Wheel Turns to Steer Machine...1242
Excessive Vibration of the Steering Wheel...1242
Machine Turns in Opposite Direction...1242
Machine Turns When Steering Valve is in Neutral...1242
Poor Centering of Steering Wheel (Wheels Continue to Move After Steering Wheel is Stopped)...1242
Steering Valve Does Not Return to Neutral...1242
Steering Wheel Kickback...1242
Steering Wheel "Locks" Up...1242
Steering Wheel or Front Wheels Slowly Turn by Themselves When Using Backhoe or Loader...1242
Steering Wheel Turns Freely With No Resistance or Action On Steered Wheels...1242
Steering Wheel Turns With Slight Resistance and No Action On Steered Wheels...1242
Steering Wheel Turns Apply Rear Axle Service Brakes...1242
Wander—Machine Will Not Stay in a Straight Line...1242
Group 20: Adjustments...1242
Backhoe Control Lever Adjustment—Two-Lever...1442
Backhoe Control Lever Adjustment—Four-Lever (If Equipped)...1445
Pilot Control Pressure Adjustment...1448
Pilot Enable and Pattern Select (PEPS) Valve Accumulator Discharge Procedure...1451
Loader Bucket Self-Leveling Linkage and Return-To-Dig Switch Adjustment...1452
Ride Control Accumulator Charge Procedure...1455
Ride Control Accumulator Charge Check Procedure...1458
Ride Control Accumulator Hydraulic Pressure Release Procedure...1461
Group 25: Tests...1243
JT02156A Digital Pressure and Temperature Analyzer Kit Installation...1463
Hydraulic Oil Warm-Up Procedure...1464
Hydraulic Circuit Pressure Release...1465
Hydraulic System Deaeration...1468
Hydraulic System Operating Pressure Test and Load Sense Relief Valve Adjustment...1470
Hydraulic Pump Pressure Test and Adjustment...1474
Hydraulic Pump Flow Test...1480
Hydraulic Return Pressure Test...1484
Load Sense Generation Valve Test...1487
Pilot Control Pressure Test...1488
Pilot Control Accumulator Charge Pressure Test...1489
Hydraulic Oil Cooler Restriction Test...1491
Circuit Relief Valve Test—With Remote Pump...1494
Function Drift Test...1499
Loader and Stabilizer Control Valve Lockout Leakage Test...1509
Steering System Leakage Test...1511
Hydraulic Cylinder Leakage Test...1514
Steering Cylinder Leakage Test...1517
Section 9031: Heating and Air Conditioning...1519
Group 05: Theory of Operation...1519
Air Conditioning System Cycle of Operation...1522
Group 10: System Diagrams...1519
Heating and Air Conditioning System Component Location...1525
Group 15: Diagnostic Information...1519
Air Conditioning System Does Not Operate...1519
Air Conditioning System Does Not Cool Interior of Cab...1519
Air Conditioning System Runs Constantly, Too Cold...1519
Heating System Does Not Operate...1519
Heating System Does Not Warm Interior of Cab...1519
Interior Windows Continue to Fog...1519
Group 25: Tests...1519
R134a Refrigerant Cautions and Proper Handling...1555
R134a Oil Charge Capacity...1556
R134a Refrigerant Charge Capacity...1557
Heater and Air Conditioner Operational Checks...1558
Air Conditioner Compressor Clutch Test...1562
R134a Refrigerant Leak Test...1563
R134a Refrigerant Hoses and Tubing Inspection...1564
Air Conditioner High/Low-Pressure Switch Test...1565
Air Conditioner Freeze Control Switch Test...1568
Air Conditioning System Test...1570
Operating Pressure Diagnostic Chart...1573
John Deere 325SL Backhoe Loader (SN.from 273920) Operation & Test Service Manual (TM13307X19)
