John Deere 320G and 324G Skid Steer Loader (EH Controls) Diagnosis and Tests Service Technical Manual (TM14290X19)
Complete Diagnosis & Tests Technical Manual with electrical wiring diagrams for John Deere 320G and 324G Skid Steer Loader (EH Controls), with workshop information to maintain, diagnose, and rebuild like professional mechanics.
John Deere 320G and 324G Skid Steer Loader (EH Controls) workshop Diagnosis & Tests technical 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.
TM14290X19 - John Deere 320G and 324G Skid Steer Loader (EH Controls) Technical Manual - Operation and Test.pdf
tm14290x28 - John Deere Chargeurs compacts 320G et 324G (commandes EH).pdf
PRODUCT DETAILS:
Total Pages: 1,211 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English French
John Deere - Skid Steer - 1T0320G_ _ _J328658-
TABLE OF CONTENTS
Section 9000: General Information....24
Group 01: Safety....24
Recognize Safety Information....27
Follow Safety Instructions....28
Operate Only If Qualified....29
Wear Protective Equipment....30
Protect Against Noise....31
Avoid Unauthorized Machine Modifications....32
Control Pattern....33
Inspect Machine....34
Stay Clear of Moving Parts....35
Avoid High-Pressure Fluids....36
Avoid High-Pressure Oils....37
Work In Ventilated Area....38
Avoid Static Electricity Risk When Refueling....39
High Debris Applications....41
Prevent Fires....42
In Case of Machine Fire....43
Prevent Battery Explosions....44
Handle Chemical Products Safely....45
Handle Starting Fluid Safely....46
Decommissioning — Proper Recycling and Disposal of Fluids and Components....47
Exhaust Filter Ash Handling and Disposal....48
Prepare for Emergencies....49
Clean Debris from Machine....50
Add Cab Guarding for Special Uses....51
Use Steps and Handholds Correctly....52
Start Only From Operator's Seat....53
Use and Maintain Seat Belt....54
Prevent Unintended Machine Movement....55
Avoid Work Site Hazards....56
Keep Riders Off Machine....58
Avoid Backover Accidents....59
Avoid Machine Tip Over....60
Avoid Power Lines....61
Operating on Slopes....62
Operating or Traveling On Public Roads....63
Inspect and Maintain ROPS....64
Travel Safely....65
Prevent Acid Burns....66
Add and Operate Attachments Safely....68
Park and Prepare for Service Safely....69
Service Machines Safely....70
Service Cooling System Safely....71
Service Accumulator Systems Safely....72
Remove Paint Before Welding or Heating....73
Make Welding Repairs Safely....74
Drive Metal Pins Safely....75
Service Tires Safely....76
Use Proper Lifting Equipment....77
Clean Exhaust Filter Safely....78
Section 9001: Diagnostics....81
Group 01: General Information....81
Diagnostic Trouble Code Designations....93
Group 10: Engine Control Unit (ECU) Diagnostic Trouble Codes....756
Engine Control Unit (ECU) Diagnostic Trouble Codes....756
000028.00 - Service Throttle Very High....81
000028.01 - Service Throttle Very Low....81
000028.03 - Service Throttle Circuit Fault....81
000028.04 - Service Throttle Circuit Fault....81
000029.03 - Foot Throttle Circuit Fault....81
000029.04 - Foot Throttle Circuit Fault....81
000029.08 - Foot Throttle Signal Fault....81
000091.03 - Hand Throttle Circuit Fault....81
000091.04 - Hand Throttle Circuit Fault....81
000100.01 - Oil Pressure Very Low....81
000100.04 - Oil Pressure Circuit Fault....81
000167.01 - System Voltage Very Low....81
000167.05 - System Voltage Circuit Fault....81
000237.13 - Vehicle ID Calibration....771
000237.31 - Vehicle ID Fault....81
001202.02 - ECU Invalid....81
001485.02 - Main Relay Invalid....81
001485.07 - Main Relay Circuit Fault....81
003695.14 - Regen Fault....81
522243.05 - Start Aid Circuit Fault....81
522243.06 - Start Aid Circuit Fault....81
522323.00 - Eng Air Filter Restr Very High....81
522329.00 - Water In Fuel Very High....81
522590.12 - Sensor Supply 1 Fault....81
522596.09 - ECU Communication Fault....81
522597.09 - ECU Communication Fault....81
522599.09 - ECU Communication Fault....81
522600.09 - ECU Communication Fault....81
522601.09 - ECU Communication Fault....82
522609.09 - EGR Communication Fault....82
522618.09 - ECU Communication Fault....82
522619.09 - ECU Communication Fault....82
522623.07 - Foot Throttle Fault....82
522624.07 - Foot Throttle Fault....82
522730.12 - ECU Fault....82
522744.04 - ECU Circuit Fault....82
522994.04 - ECU Circuit Fault....82
523471.06 - ECU Circuit Fault....82
Group 20: Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes....756
Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes....756
000096.03 - Fuel Level Circuit Fault....82
000096.04 - Fuel Level Circuit Fault....82
000158.00 - System Voltage Very High....82
000158.01 - System Voltage Very Low....82
000162.04 - 2-Speed Switch Circuit Fault....82
000237.02 - Vehicle ID Invalid....82
000237.14 - Vehicle ID Fault....82
000237.31 - Vehicle ID Fault....82
000628.12 - Programming Fault....82
000920.05 - Alarm Output Circuit Fault....82
000920.06 - Alarm Output Circuit Fault....82
001196.11 - Antitheft Fault....82
001504.04 - Seat Switch Circuit Fault....82
002000.09 - ECU Communication Fault....82
002142.09 - SSM Communication Fault....82
002228.09 - HCU Communication Fault....82
002251.09 - SAR Communication Fault....82
003413.04 - Door Switch Circuit Fault....82
003597.03 - Sensor Supply 1 Circuit Fault....82
003597.04 - Sensor Supply 1 Circuit Fault....82
521050.04 - Aux Flow Switch Circuit Fault....82
521197.04 - Courtesy Light Sw Circuit Fault....83
522379.05 - Park Brake Sol Circuit Fault....83
522379.06 - Park Brake Sol Circuit Fault....83
522398.02 - Park Brake Switch Invalid....83
522398.04 - Park Brake Switch Circuit Fault....83
522438.04 - Self Level Switch Circuit Fault....83
522438.07 - Self Level Switch Fault....83
522826.00 - Fan Purge Switch Very High....83
522826.04 - Fan Purge Switch Circuit Fault....83
522827.04 - Fan Auto Switch Circuit Fault....83
522828.03 - Creep Mode Switch Circuit Fault....83
522828.04 - Creep Mode Switch Circuit Fault....83
522828.07 - Creep Mode Switch Fault....83
522859.04 - Lap Bar Switch Circuit Fault....83
523217.06 - Hyd Valve Power 3 Circuit Fault....83
523218.06 - Hst Valve Power Circuit Fault....83
523219.06 - Hyd Valve Power 1 Circuit Fault....83
523693.03 - Aux Hydraulic In 1 Circuit Fault....83
523693.04 - Aux Hydraulic In 1 Circuit Fault....83
523694.03 - Aux Hydraulic In 2 Circuit Fault....83
523694.04 - Aux Hydraulic In 2 Circuit Fault....83
523694.12 - Aux Hydraulic In 2 Fault....83
523822.04 - High Flow Switch Circuit Fault....83
523935.05 - Aux Hyd Extend Sol Circuit Fault....83
523935.06 - Aux Hyd Extend Sol Circuit Fault....83
523941.05 - Aux Hyd Retract Sol Circuit Fault....83
523941.06 - Aux Hyd Retract Sol Circuit Fault....83
523948.05 - Ride Control Sol 1 Circuit Fault....83
523948.06 - Ride Control Sol 1 Circuit Fault....83
523949.05 - Ride Control Sol 2 Circuit Fault....83
523949.06 - Ride Control Sol 2 Circuit Fault....83
524225.04 - Remote Start In Circuit Fault....83
524264.11 - Checksum Fault....83
Group 30: Hydraulic Control Unit (HCU) Diagnostic Trouble Codes....756
Hydraulic Control Unit (HCU) Diagnostic Trouble Codes....756
000630.13 - Calibration Memory Calibration....771
001594.00 - Left Speed In Very High....84
001594.01 - Left Speed In Very Low....84
001594.02 - Left Speed In Invalid....84
001594.14 - Left Speed In Fault....84
001595.00 - Right Speed In Very High....84
001595.01 - Right Speed In Very Low....84
001595.02 - Right Speed In Invalid....84
001595.14 - Right Speed In Fault....84
002201.09 - Right Joystick Communication Fault....84
002213.09 - Left Joystick Communication Fault....84
002660.07 - Right Joystick X Fault....84
002661.07 - Right Joystick Y Fault....84
002697.07 - Left Joystick X Fault....84
002698.07 - Left Joystick Y Fault....84
516197.06 - Hyd Port Lock Sol Circuit Fault....84
520652.05 - Bucket Curl Sol Circuit Fault....84
520652.06 - Bucket Curl Sol Circuit Fault....84
520653.05 - Bucket Dump Sol Circuit Fault....84
520653.06 - Bucket Dump Sol Circuit Fault....84
520882.13 - Loader Threshold Calibration....771
522447.05 - Right Pump Fwd Sol Circuit Fault....84
522447.06 - Right Pump Fwd Sol Circuit Fault....84
522448.05 - Right Pump Rev Sol Circuit Fault....84
522448.06 - Right Pump Rev Sol Circuit Fault....84
522449.05 - Left Pump Rev Sol Circuit Fault....84
522449.06 - Left Pump Rev Sol Circuit Fault....84
522450.05 - Left Pump Fwd Sol Circuit Fault....84
522450.06 - Left Pump Fwd Sol Circuit Fault....84
523108.13 - Transmission Calibration....771
523217.03 - Hyd Valve Power 3 Circuit Fault....84
523217.04 - Hyd Valve Power 3 Circuit Fault....85
523218.03 - Hst Valve Power Circuit Fault....85
523218.04 - Hst Valve Power Circuit Fault....85
523219.03 - Hyd Valve Power 1 Circuit Fault....85
523219.04 - Hyd Valve Power 1 Circuit Fault....85
523411.05 - Boom Down Sol Circuit Fault....85
523411.06 - Boom Down Sol Circuit Fault....85
523411.16 - Boom Down Sol Moderately High....85
523414.05 - Boom Up Sol Circuit Fault....85
523414.06 - Boom Up Sol Circuit Fault....85
523414.16 - Boom Up Sol Moderately High....85
Group 40: Left Joystick Controller (JSL) Diagnostic Trouble Codes....756
Left Joystick Controller (JSL) Diagnostic Trouble Codes....756
002697.03 - Left Joystick X Circuit Fault....85
002697.04 - Left Joystick X Circuit Fault....85
002697.13 - Left Joystick X Calibration....771
002697.14 - Left Joystick X Fault....85
002698.03 - Left Joystick Y Circuit Fault....85
002698.04 - Left Joystick Y Circuit Fault....85
002698.13 - Left Joystick Y Calibration....771
002698.14 - Left Joystick Y Fault....85
Group 50: Right Joystick Controller (JSR) Diagnostic Trouble Codes....756
Right Joystick Controller (JSR) Diagnostic Trouble Codes....756
002660.03 - Right Joystick X Circuit Fault....85
002660.04 - Right Joystick X Circuit Fault....85
002660.13 - Right Joystick X Calibration....771
002660.14 - Right Joystick X Fault....85
002661.03 - Right Joystick Y Circuit Fault....85
002661.04 - Right Joystick Y Circuit Fault....85
002661.13 - Right Joystick Y Calibration....771
002661.14 - Right Joystick Y Fault....85
Group 60: Sealed Switch Module (SSM) Diagnostic Trouble Codes....756
Sealed Switch Module (SSM) Diagnostic Trouble Codes....756
000629.12 - Control Unit Fault....86
002033.09 - VCU Communication Fault....86
002634.04 - Ignition Relay Circuit Fault....86
002634.05 - Ignition Relay Circuit Fault....86
003997.04 - Wake Up Output Circuit Fault....86
003997.05 - Wake Up Output Circuit Fault....86
523850.04 - SSM Button 15 Circuit Fault....86
523850.09 - SSM Button 15 Communication Fault....86
523852.04 - SSM Button 14 Circuit Fault....86
523852.09 - SSM Button 14 Communication Fault....86
523854.04 - SSM Button 13 Circuit Fault....86
523854.09 - SSM Button 13 Communication Fault....86
523855.04 - SSM Button 12 Circuit Fault....86
523855.09 - SSM Button 12 Communication Fault....86
523856.04 - SSM Button 11 Circuit Fault....86
523856.09 - SSM Button 11 Communication Fault....86
523857.04 - SSM Button 10 Circuit Fault....86
523857.09 - SSM Button 10 Communication Fault....86
523858.04 - SSM Button 9 Circuit Fault....86
523858.09 - SSM Button 9 Communication Fault....86
523860.04 - SSM Button 8 Circuit Fault....86
523860.09 - SSM Button 8 Communication Fault....86
523861.04 - SSM Button 7 Circuit Fault....86
523861.09 - SSM Button 7 Communication Fault....86
523862.04 - SSM Button 6 Circuit Fault....86
523862.09 - SSM Button 6 Communication Fault....86
523863.04 - SSM Button 5 Circuit Fault....86
523863.09 - SSM Button 5 Communication Fault....86
523864.04 - SSM Button 4 Circuit Fault....86
523864.09 - SSM Button 4 Communication Fault....86
523865.04 - SSM Button 3 Circuit Fault....86
523865.09 - SSM Button 3 Communication Fault....86
523867.04 - SSM Button 2 Circuit Fault....86
523867.09 - SSM Button 2 Communication Fault....87
523868.04 - SSM Button 1 Circuit Fault....87
523868.09 - SSM Button 1 Communication Fault....87
Group 70: Vehicle Control Unit (VCU) Diagnostic Trouble Codes....756
Vehicle Control Unit (VCU) Diagnostic Trouble Codes....756
000158.03 - System Voltage Circuit Fault....87
000158.04 - System Voltage Circuit Fault....87
000168.03 - Battery Voltage Circuit Fault....87
000168.04 - Battery Voltage Circuit Fault....87
000628.12 - Programming Fault....87
000977.05 - Fan Direction Sol Circuit Fault....87
000977.06 - Fan Direction Sol Circuit Fault....87
001071.05 - Fan Speed Sol Circuit Fault....87
001071.06 - Fan Speed Sol Circuit Fault....87
001508.00 - Hydraulic Oil Temp Very High....87
001508.03 - Hydraulic Oil Temp Circuit Fault....87
001508.04 - Hydraulic Oil Temp Circuit Fault....87
001713.00 - Hyd Filter Switch Very High....87
001713.03 - Hyd Filter Switch Circuit Fault....87
003512.03 - Sensor Supply 4 Circuit Fault....87
003512.04 - Sensor Supply 4 Circuit Fault....87
004056.05 - 2-Speed Output Circuit Fault....87
004056.06 - 2-Speed Output Circuit Fault....87
516249.04 - Sensor Supply 1 Circuit Fault....87
520194.13 - Vehicle ID Calibration....771
520194.14 - Vehicle ID Fault....87
520714.05 - Self Level Circuit Fault....87
520714.06 - Self Level Circuit Fault....87
520849.03 - Right JS Trigger Circuit Fault....87
520849.04 - Right JS Trigger Circuit Fault....87
521466.05 - Fan Direction Sol Circuit Fault....87
521466.06 - Fan Direction Sol Circuit Fault....87
522820.05 - High Flow Sol Circuit Fault....87
522820.06 - High Flow Sol Circuit Fault....88
524084.00 - Hst Oil Temp Very High....88
524084.03 - Hst Oil Temp Circuit Fault....88
524084.04 - Hst Oil Temp Circuit Fault....88
524264.11 - Checksum Error....88
Group 80: Rear Camera Display (VC1) Diagnostic Trouble Codes....756
Rear Camera Display (VC1) Diagnostic Trouble Codes....756
000629.12 - Control Unit Fault....88
516628.10 - Monitor Button Fault....88
516629.10 - Monitor Button Fault....88
516630.10 - Monitor Button Fault....88
520760.02 - Camera Signal Invalid....88
521857.10 - Monitor Button Fault....88
521858.10 - Monitor Button Fault....88
521859.10 - Monitor Button Fault....88
Section 9005: Operational Checkout Procedure....460
Group 10: Operational Checkout Procedure....460
Operational Checkout....494
Section 9010: Engine....527
Group 05: Theory of Operation....527
John Deere Engine....555
Engine Identification....530
Exhaust Aftertreatment....533
Cold Start Operation....534
Group 10: System Diagrams....527
John Deere Engine....555
Engine Cooling System Component Location....538
Engine Fuel System Component Location....540
Engine Intake and Exhaust Component Location....544
Group 15: Diagnostic Information....527
John Deere Engine....555
Engine Hard to Start or Does Not Start When Cold....527
Group 20: Adjustments....527
John Deere Engine....555
Service Filter Cleaning....553
Group 25: Tests....527
John Deere Engine....555
Fluid Sampling Procedure—If Equipped....556
Section 9015: Electrical System....561
Group 05: Theory of Operation....561
Starting Circuit Theory of Operation....572
Controller Area Network (CAN) Theory of Operation....579
Rear Camera Circuit Theory of Operation....584
Engine Control Unit (ECU) Circuit Theory of Operation....586
Exhaust Aftertreatment Circuit Theory of Operation....599
Engagement and Monitor Unit (EMU) Circuit Theory of Operation....605
Lighting Circuit Theory of Operation....613
Hydraulic System Control Circuit Theory of Operation....616
Backup Alarm Circuit Theory of Operation....625
Quik-Tatch™ Circuit Theory of Operation—If Equipped....627
JDLink™ Circuit Theory of Operation....629
Hydrostatic System Control Circuit Theory of Operation....631
Hydraulic Fan Control Circuit Theory of Operation....640
Group 10: System Diagrams....561
Electrical Diagram Information....648
Electrical Schematic Symbols....651
Fuse and Relay Specifications....654
System Functional Schematic, Wiring Diagram, and Component Location Master Legend....658
System Functional Schematic....663
Rear Engine Harness (W1) Component Location....668
Rear Engine Harness (W1) Wiring Diagram....670
Cab Harness (W2) Component Location....671
Cab Harness (W2) Wiring Diagram....673
Left Main Harness (W3) Component Location....676
Left Main Harness (W3) Wiring Diagram....678
Right Main Harness (W4) Component Location....680
Right Main Harness (W4) Wiring Diagram....682
Dual Flasher Harness (W5) Component Location....685
Dual Flasher Harness (W5) Wiring Diagram....686
Control Valve Harness (W6) Component Location....688
Control Valve Harness (W6) Wiring Diagram....689
JDLink™ Harness (W7) Component Location....690
JDLink™ Harness (W7) Wiring Diagram....691
Radio Harness (W8) Component Location....692
Radio Harness (W8) Wiring Diagram....693
Rear Camera Harness (W10) Component Location....694
Rear Camera Harness (W10) Wiring Diagram....695
Attachment Control Frame Harness (W11) Component Location....696
Attachment Control Frame Harness (W11) Wiring Diagram....697
Attachment Control Boom Harness (W12) Component Location....698
Attachment Control Boom Harness (W12) Wiring Diagram....699
Heater and Air Conditioner Harness (W17) Component Location....701
Heater and Air Conditioner Harness (W17) Wiring Diagram....702
High/Low-Pressure Switch and Heater Valve Motor Harness (W18) Component Location....703
High/Low-Pressure Switch and Heater Valve Motor Harness (W18) Wiring Diagram....704
Creep Mode Speed Switch Harness (W19) Component Location....705
Creep Mode Speed Switch Harness (W19) Wiring Diagram....706
Engine Interface Harness (W20) Component Location....707
Engine Interface Harness (W20) Wiring Diagram....708
Engine Harness (W21) Component Location....709
Engine Harness (W21) Wiring Diagram....712
Engine Fuel System Harness (W22) Component Location....714
Engine Fuel System Harness (W22) Wiring Diagram....715
Joystick Jumper Harness (W25) Component Location....717
Joystick Jumper Harness (W25) Wiring Diagram....718
Quik-Tatch™ Frame Harness (W40) Component Location....719
Quik-Tatch™ Frame Harness (W40) Wiring Diagram....720
Quik-Tatch™ Boom Harness (W42) Component Location....721
Quik-Tatch™ Boom Harness (W42) Wiring Diagram....722
Quik-Tatch™ Actuator Harness (W44) Component Location....723
Quik-Tatch™ Actuator Harness (W44) Wiring Diagram....724
Group 15: Diagnostic Information....562
Service ADVISOR™ Diagnostic Application....726
Service ADVISOR™ Connection Procedure....727
Service ADVISOR™ Controller Connectivity Check....729
Using Service ADVISOR™ Remote....732
Reading Diagnostic Trouble Codes With Service ADVISOR™ Diagnostic Application....735
Intermittent Diagnostic Trouble Code (DTC) Diagnostics....739
Diagnostic Trouble Codes—After Machine Repair....740
Group 16: Monitor Operation....563
Engagement and Monitor Unit Operation....744
Engagement and Monitor Unit Display Messages....747
Service Mode....751
Exhaust Filter Service Cleaning....753
Exhaust Filter Set Auto Clean....754
Shift Mode....755
Codes....756
Diagnostics—Switches....757
Diagnostics—Sensors....758
Diagnostics—Left Joystick....759
Diagnostics—Right Joystick....760
Diagnostics—Speeds....761
Diagnostics—VCU Outputs....762
Diagnostics—EMU Outputs....763
Diagnostics—ECU Outputs....764
Diagnostics—VCU Power....765
Diagnostics—EMU Power....766
Diagnostics—ECU Power....767
Diagnostics—Controller Info....768
Diagnostics—Cal Values....769
Antitheft—Master Code....770
Calibration....771
Owner Controls....772
Anti-Theft Security System Configuration—If Equipped....774
Anti-Theft Security System Enable—If Equipped....779
Anti-Theft Security System Operation—If Equipped....781
Group 17: Diagnostic Test Box....563
Setup and Functional Test....792
Two Wire Sensor Circuit Check—Out of Range High....801
Two Wire Sensor Circuit Check—Out of Range Low....803
Three Wire Sensor Circuit Check—Out of Range High....805
Three Wire Sensor Circuit Check—Out of Range Low....807
Group 20: Adjustments....564
Hydrostatic System Calibration....812
Boom and Bucket Calibration....815
Auxiliary Hydraulics Calibration....817
Manual Tracking Adjustment....819
Group 25: Tests....564
Electrical Component Checks....832
Electrical Component Specifications....844
Solenoid Test....850
Alternator Test....877
Controller Area Network (CAN) Circuit Test....879
Section 9020: Power Train....890
Group 05: Theory of Operation....890
Power Train System Operation....892
Group 10: System Diagrams....890
Power Train Component Location....896
Group 15: Diagnostic Information....890
Oil Leak From Power Train....890
Excessive Axle Play....890
Drive Chain Noise....890
Grinding Noise....890
One Drive Wheel Not Powered....890
Both Wheels On One Side Not Powered....890
Group 20: Adjustments....890
Drive Chain Tension Check and Adjustment....913
Section 9025: Hydraulic System....916
Group 05: Theory of Operation....916
Hydraulic System Operation....920
Hydraulic Oil Filter Manifold Operation....922
High Flow Pump Operation—If Equipped....923
Self Leveling Valve Operation—If Equipped....927
Ride Control Operation—If Equipped....929
Hydraulic Pump Operation....931
Hydraulic Fan Operation....933
Hydraulic Control Valve Operation....936
Group 10: System Diagrams....916
Hydraulic System Schematic....948
Hydraulic System Component Location....954
Group 15: Diagnostic Information....916
Diagnose Hydraulic System Malfunctions....957
No Hydraulic Functions....916
Boom Will Not Raise....916
Boom Will Not Lower....916
Bucket Will Not Dump....916
Bucket Will Not Curl....916
Bucket Will Not Self Level When Boom is Raised....916
Bucket Dumps During Self Leveling Cycle....916
Boom Drifts Down....916
Boom Drifts Up....916
Bucket Drifts Down....916
Bucket Drifts Up....916
Hydraulic Functions Slow or No Power....916
Hydraulic Functions “Jerky” or “Spongy”....916
Hydraulic System Noise....916
Hydraulic Oil Overheats....916
Hydraulic Fan System Malfunctions....916
Hydraulic Fan Will Not Reverse Direction....916
Group 20: Adjustments....917
Ride Control Accumulator Gas Charge Procedure—If Equipped....1040
Group 25: Tests....917
JT05800 Digital Thermometer Installation....1044
JT02156A Digital Pressure and Temperature Analyzer Kit Installation....1045
Remote Start Box Installation....1046
Hydraulic System Pressure Release....1048
Port Lock Solenoid Valve and Port Lock Spool Test....1050
Hydraulic System Relief Valve Test....1051
Charge Pressure Relief Valve Test....1054
High Flow Relief Valve Test....1057
Circuit Relief Valve Test....1060
Function Drift Test....1069
Hydraulic Cylinder Leakage Test....1076
Hydraulic Pump Flow Test....1078
Charge Pump Flow Test....1086
Hydraulic Fan Motor Speed Test....1089
Hydraulic Fan Motor Case Drain Test....1092
Auxiliary Coupler Manifold Leakage Test....1096
Section 9026: Hydrostatic System....1098
Group 05: Theory of Operation....1098
Hydrostatic System Operation....1100
Hydrostatic Pump Operation....1101
Charge Pump Operation....1108
Hydrostatic Motor Operation—Single Speed....1110
Hydrostatic Motor Operation—Two-Speed....1112
Hydrostatic Control Valve Operation....1116
Park Brake System Operation....1118
Group 10: System Diagrams....1098
Hydrostatic System Schematic....1121
Hydrostatic System Component Location....1122
Group 15: Diagnostic Information....1098
Machine Does Not Move In Either Direction....1098
Hydrostatic Pump Or Hydrostatic Motor Noise....1098
Slow Response To Changes In Speed....1098
Low Power....1098
Wheels Powered On One Side, Not The Other....1098
Machine Will Not Shift Into Or Out Of High Speed....1098
Mistracking....1098
Park Brakes Do Not Hold....1098
Park Brakes Do Not Release....1098
Grinding Noise While Operating Machine....1098
Group 25: Tests....1098
Engine Speed Control for Testing....1156
Multi-Function Valve Pressure Relief Test....1157
Hydrostatic Pump Flow Test....1161
Hydrostatic Pump Mechanical Neutral Adjustment....1166
Hydrostatic Pump Control Neutral Adjustment....1172
Wheel Speed Test....1175
Park Brake Release Pressure Test....1177
Hydrostatic Motor Case Drain Test—Single Speed....1181
Section 9031: Heating and Air Conditioning....1185
Group 05: Theory of Operation....1185
Air Conditioning System Cycle of Operation....1188
Group 10: System Diagrams....1185
Heating and Air Conditioning System Component Location....1191
Group 15: Diagnostic Information....1185
Air Conditioning System Does Not Operate....1185
Air Conditioning System Does Not Cool Interior of Cab....1185
Air Conditioning System Runs Constantly, Too Cold....1185
Heating System Does Not Operate....1185
Heating System Does Not Warm Interior of Cab....1185
Interior Windows Continue to Fog....1185
Group 25: Tests....1185
R134a Refrigerant Cautions and Proper Handling....1222
R134a Oil Charge Capacity....1223
R134a Refrigerant Charge Capacity....1224
Heater and Air Conditioner Operational Checks....1225
Air Conditioner Compressor Clutch Test....1229
R134a Refrigerant Leak Test....1230
R134a Refrigerant Hoses and Tubing Inspection....1231
Air Conditioner High/Low-Pressure Switch Test....1232
Air Conditioner Freeze Control Switch Test....1235
Air Conditioning System Test....1237
Operating Pressure Diagnostic Chart....1240
Section 9900: Dealer Fabricated Tools....1242
Group 99: Dealer Fabricated Tools....1242
DFT1318 Motor Speed Sensor Test Harness....1245
DFT1325 Solenoid Power Harness....1247
John Deere 320G and 324G Skid Steer Loader (EH Controls) Diagnosis and Tests Service Technical Manual (TM14290X19)
