Complete technical Operation & Test Manual with electrical wiring diagrams for John Deere 310K Backhoe Loader. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

John Deere 310K Backhoe Loader Operation & Test Technical Manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

TM13056X19 - John Deere 310K Backhoe Loader Operation and Test Technical Manual
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EXCERPT:
TM13056X19 - 310K Backhoe Loader
Loader and Stabilizer Control Valve Operation
TX1135731-UN: 5-Function Loader and Stabilizer Control Valve (neutral, manual auxiliary shown)
LEGEND:
1 - Lift Check Valve (3 used)
2 - Neutral Flow Passage
3 - Power Passage (2 used)
150 - System Relief Valve
190 - Loader and Stabilizer Control Valve
191 - Left Stabilizer Spool
192 - Right Stabilizer Spool
193 - Loader Boom Spool
194 - Loader Bucket Spool
195 - Loader Auxiliary Spool (if equipped)
600 - High Pressure Oil
604 - Return Oil
606 - Trapped Oil
TX1135813A-UN: 5-Function Loader and Stabilizer Control Valve
LEGEND:
1 - Lift Check Valve (3 used)
4 - Supply Inlet Port
5 - Return Outlet Port
7 - Power Beyond Port (not used)
150 - System Relief Valve
190 - Loader and Stabilizer Control Valve
191 - Left Stabilizer Spool
192 - Right Stabilizer Spool
193 - Loader Boom Spool
194 - Loader Bucket Spool
195 - Loader Auxiliary Spool (if equipped)
Loader and stabilizer control valve is an open center, mono-block, spool valve. All function spools are contained within one main housing.
High pressure oil enters valve at supply inlet port (4). When no functions are activated (neutral) supply oil flows uninterrupted through control valve to hydraulic reservoir via neutral flow passage (2). Two power passages (3) branch off parallel to neutral flow passage to provide hydraulic pressure to stabilizer and loader functions. Return oil exits at return outlet (5). System
relief valve (150) regulates loader and stabilizer function maximum supply oil pressure.
Stabilizers only or loader functions only can operate at one time. Stabilizer function takes priority over loader functions. If one or both stabilizer spools are shifted, oil is blocked to downstream loader functions.
All loader functions can operate simultaneously. When one spool moves only neutral flow passage is blocked from return, supply oil is still routed to downstream loader spools through the power passage. This passage is dead-ended at last valve section.
For more information on each spool function operation see the following corresponding sections.
Stabilizer Section
...

TABLE OF CONTENTS.....1
Section 9000: General Information.....19
  Group 01: Safety.....19
    Recognize Safety Information.....22
    Follow Safety Instructions.....23
    Operate Only If Qualified.....24
    Wear Protective Equipment.....25
    Avoid Unauthorized Machine Modifications.....26
    Inspect Machine.....27
    Stay Clear of Moving Parts.....28
    Avoid High-Pressure Oils.....29
    Avoid High-Pressure Fluids.....30
    Work In Ventilated Area.....31
    Prevent Fires.....32
    Prevent Battery Explosions.....33
    Handle Chemical Products Safely.....34
    Decommissioning — Proper Recycling and Disposal of Fluids and Components.....35
    Prepare for Emergencies.....36
    Use Steps and Handholds Correctly.....37
    Start Only From Operator's Seat.....38
    Use and Maintain Seat Belt.....39
    Prevent Unintended Machine Movement.....40
    Avoid Work Site Hazards.....41
    Keep Riders Off Machine.....43
    Avoid Backover Accidents.....44
    Avoid Machine Tipover.....45
    Add and Operate Attachments Safely.....46
    Use Special Care When Operating.....47
    Operating or Traveling On Public Roads.....48
    Inspect and Maintain ROPS.....49
    Park and Prepare for Service Safely.....50
    Service Cooling System Safely.....51
    Remove Paint Before Welding or Heating.....52
    Make Welding Repairs Safely.....53
    Drive Metal Pins Safely.....54
    Service Tires Safely.....55
Section 9001: Diagnostics.....56
  Group 10: Engine Control Unit (ECU) Diagnostic Trouble Codes.....61
    Engine Control Unit (ECU) Diagnostic Trouble Codes.....61
    000029.03 - Hand Throttle.....56
    000029.04 - Hand Throttle.....56
    000029.14 - Hand Throttle.....56
    000091.03 - Foot Throttle.....56
    000091.04 - Foot Throttle.....56
    000091.14 - Foot Throttle.....56
    000107.00 - Engine Air Filter.....56
    000190.00 - Engine Speed.....56
    000190.16 - Engine Speed.....56
    000237.31 - Vehicle ID Number.....56
    000628.12 - Memory Error.....56
    001321.05 - Starter Relay.....56
    001321.06 - Starter Relay.....56
    001321.16 - Starter Relay.....56
    002003.09 - No CAN From TCU.....56
    002047.09 - Can Communication Lost with VCU.....56
    002071.09 - No CAN From VCU.....56
    523702.09 - Flex Power Message Missing.....56
  Group 20: Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes.....110
    Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes.....110
    000096.03 - Fuel Level Sensor.....56
    000096.04 - Fuel Level Sensor.....56
    000168.03 - Battery Voltage.....56
    000168.04 - Battery Voltage.....56
    000234.02 - Software Incorrect.....56
    000237.02 - VIN Mismatch.....56
    000237.13 - VIN Mismatch.....56
    000237.31 - VIN Missing.....56
    000628.12 - Memory Error.....56
    000629.12 - Controller Fault.....56
    000920.06 - Alarm Output.....57
    000920.12 - Alarm Output.....57
    001196.11 - Antitheft.....57
    002000.09 - No CAN from ECU.....57
    002003.09 - No CAN from TCU.....57
    002071.09 - No CAN from VCU.....57
    002251.09 - No CAN from MTG.....57
    524082.07 - Display Buttons.....57
  Group 30: Transmission Control Unit (TCU) Diagnostic Trouble Codes.....166
    Transmission Control Unit (TCU) Diagnostic Trouble Codes.....166
    000070.04 - Park Brake.....57
    000070.07 - Park Brake.....57
    000070.14 - Park Brake.....57
    000177.00 - Trans Oil Temp.....57
    000177.04 - Trans Oil Temp.....57
    000525.02 - Requested Gear.....57
    000525.03 - Requested Gear.....57
    000525.04 - Requested Gear.....57
    000525.05 - Requested Gear.....57
    000604.04 - TCL Neutral SW.....57
    000617.07 - Park Brake Circuit.....57
    000618.07 - Park Brake Circuit.....57
    000629.12 - Controller Fault.....57
    000736.03 - Y3 Solenoid.....57
    000736.05 - Y3 Solenoid.....57
    000736.06 - Y3 Solenoid.....57
    000737.03 - Y4 Solenoid.....57
    000737.05 - Y4 Solenoid.....57
    000737.06 - Y4 Solenoid.....57
    000738.03 - Y5 Solenoid.....57
    000738.05 - Y5 Solenoid.....57
    000738.06 - Y5 Solenoid.....57
    000746.03 - Differential Lock.....57
    000746.05 - Differential Lock.....58
    000746.06 - Differential Lock.....58
    000746.31 - Differential Lock.....58
    000767.05 - TCL Reverse SW.....58
    000880.06 - Brake Lights.....58
    000903.05 - TCL Forward SW.....58
    001045.04 - Brake Light SW.....58
    002000.09 - No CAN from ECU.....58
    002023.09 - No CAN from PDU.....58
    002034.09 - No CAN from AVC.....58
    002071.09 - No CAN from TCU.....58
    002612.05 - MFWD Solenoid.....58
    002612.06 - MFWD Solenoid.....58
    004312.02 - TCL Selector.....58
    004312.03 - TCL Selector.....58
    004312.05 - TCL Selector.....58
    004312.06 - TCL Direction Driver.....58
    522379.03 - Park Brake.....58
    522379.04 - Park Brake.....58
    522379.05 - Park Brake.....58
    522379.06 - Park Brake.....58
    522405.03 - PB Pressure Switch.....58
    523689.04 - Diff Lock Switch.....58
    523689.07 - Diff Lock Switch.....58
    524172.03 - Clutch Disconnect.....58
    524172.04 - Clutch Disconnect.....58
  Group 40: Vehicle Control Unit (VCU) Diagnostic Trouble Codes.....322
    Vehicle Control Unit (VCU) Diagnostic Trouble Codes.....322
    000237.02 - VIN Mismatch.....58
    000237.13 - VIN Mismatch.....58
    000237.31 - VIN Missing.....58
    000628.12 - Memory Error.....58
    001713.00 - Hyd Oil Restriction.....58
    520713.03 - Seat Position.....59
    520713.04 - Seat Position.....59
    520713.07 - Seat Position.....59
    520713.12 - Seat Position.....59
    520713.13 - Seat Position.....59
Section 9005: Operational Checkout Procedure.....389
  Group 10: Operational Checkout Procedure.....389
    Operational Checkout Procedure.....389
Section 9010: Engine.....425
  Group 05: Theory of Operation.....425
    John Deere Engine Operation.....446
    Engine Cooling System Operation.....428
  Group 15: Diagnostic Information.....425
    John Deere Engine Operation.....446
    Engine Cooling System Component Location.....432
    Engine Fuel System Component Location.....435
    Engine Intake and Exhaust Component Location.....437
  Group 20: Adjustments.....425
    John Deere Engine Operation.....446
    Engine Speed Control Lever Tension Adjustment—(S.N. 000471— ).....441
    Slow and Fast Idle Speed Adjustment.....443
  Group 25: Tests.....425
    John Deere Engine Operation.....446
    Fluid Sampling Procedure—If Equipped.....975
    Engine Speed Check.....452
    Air in Fuel Test.....454
    Engine Thermostat Test.....455
    Thermal Bypass Valve Test.....456
    Intake Manifold Pressure—Turbocharger Boost.....458
Section 9015: Electrical System.....461
  Group 05: System Information.....461
    Electrical Diagram Information.....468
    Electrical Schematic Symbols.....472
  Group 10: System Diagrams.....461
    Fuse and Relay Location and Specifications.....480
    System Functional Schematic, Wiring Diagram, and Component Location Legend.....485
    System Functional Schematic and Section Legend.....489
    Engine Harness (W10) Component Location.....497
    Engine Harness (W10) Wiring Diagram.....501
    Transmission Harness (W13) Component Location.....503
    Transmission Harness (W13) Wiring Diagram.....504
    Cab Harness (W14) Component Location.....505
    Cab Harness (W14) Wiring Diagram.....509
    Canopy (With Windshield) Harness (W16) Component Location.....515
    Canopy (With Windshield) Harness (W16) Wiring Diagram.....519
    Roof Harness (W17) Component Location.....525
    Roof Harness (W17) Wiring Diagram.....527
    Radio Harness (W18) Component Location.....529
    Radio Harness (W18) Wiring Diagram.....531
    Heater and Air Conditioner Harness (W19) Component Location.....533
    Heater and Air Conditioner Harness (W19) Wiring Diagram.....534
    Pilot Control, Selective Flow and Ride Control Harness (W20) Component Location—(S.N. —000470).....535
    Pilot Control, Selective Flow and Ride Control Harness (W20) Wiring Diagram—(S.N. —000470).....537
    Selective Flow and Ride Control Harness (W21) Component Location—(S.N. —000470).....538
    Selective Flow and Ride Control Harness (W21) Wiring Diagram—(S.N. —000470).....540
    Ride Control Harness (W46) Component Location—(S.N. 000471— ).....541
    Ride Control Harness (W46) Wiring Diagram—(S.N. 000471— ).....542
    Ride Control Solenoid Harness (W27) Component Location.....543
    Ride Control Solenoid Harness (W27) Wiring Diagram.....544
    Selective Flow Harness (W47) Component Location—(S.N. 000471— ).....545
    Selective Flow Harness (W47) Wiring Diagram (S.N. 000471— ).....546
    Selective Flow Solenoid Harness (W28) Component Location.....547
    Selective Flow Solenoid Harness (W28) Wiring Diagram.....548
    Return-to-Dig Harness (W32) Component Location.....549
    Return-to-Dig Harness (W32) Wiring Diagram.....550
    Air Conditioner Compressor Clutch Harness (W39) Component Location.....551
    Air Conditioner Compressor Clutch Harness (W39) Wiring Diagram.....552
    Blower Mode Door Motor Harness (W40) Component Location.....553
    Blower Mode Door Motor Harness (W40) Wiring Diagram.....554
    Backup Light Harness (W43) Component Location.....555
    Backup Light Harness (W43) Wiring Diagram.....556
    Modular Telematics Gateway (MTG) Harness (W6002) Component Location.....557
    Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram.....558
    Satellite (SAT) Harness (W6003) Component Location.....559
    Satellite (SAT) Harness (W6003) Wiring Diagram.....560
  Group 15: Sub-System Diagnostics.....462
    Start and Charge Circuit Theory of Operation.....564
    Controller Area Network (CAN) Circuit Theory of Operation.....567
    Engine Control Unit (ECU) Circuit Theory of Operation.....569
    Engagement and Monitor Unit (EMU) Circuit Theory of Operation.....573
    Transmission Control Circuit Theory of Operation.....579
    JDLink™ Circuit Theory of Operation.....586
  Group 16: Monitor Operation.....462
    Engagement and Monitor Unit (EMU)—Service Menu.....589
    Engagement and Monitor Unit (EMU)—Clear Codes.....590
    Engagement and Monitor Unit (EMU)—Diagnostics.....591
    Engagement and Monitor Unit (EMU)—Main Menu Visible or Hidden.....595
    Engagement and Monitor Unit (EMU)—Restore Monitor Defaults.....596
    Engagement and Monitor Unit (EMU)—Machine Options.....597
    Engagement and Monitor Unit (EMU)—Setting Hour Meter.....600
    Security System Enable - Disable.....602
    Security System Configuration.....604
    Security System Operation.....608
  Group 20: References.....462
    Electrical Component Specifications.....612
    Service ADVISOR™ Connection Procedure.....615
    JDLink™ Connection Procedure.....617
    Reading Diagnostic Trouble Codes (DTCs).....618
    Diagnostic Trouble Code (DTC) Monitor Messages.....621
    Intermittent Diagnostic Trouble Code (DTC) Diagnostics.....626
    Controller Area Network (CAN) Circuit Test.....627
    Controller Area Network (CAN) Resistor Test.....636
    Alternator Test.....638
    Wire Harness Test.....640
    Sensor Circuit Test.....641
    Crank Position Sensor Test.....643
    Transmission Control Circuit Test.....644
    Transmission Solenoid Circuit Test.....646
    Transmission Control Lever (TCL) Test.....647
    Transmission Solenoid Check.....649
    Throttle Position Sensor Test.....650
    Engine Speed Control Pedal Test.....652
    Seat Position Sensor Remove and Install.....655
    Controller Remove and Install.....657
Section 9020: Power Train.....658
  Group 05: Theory of Operation.....658
    Power Train Overview.....662
    Transmission Pump Operation.....664
    Torque Converter Operation.....665
    Transmission Filter Operation.....667
    Clutch Modulation Operation.....668
    Clutch Pack Operation.....670
    Transmission Gear Flow.....671
    Transmission Clutch Engagement and Solenoid Activation.....674
    Differential Operation.....675
    Differential Lock Operation.....676
    Mechanical Front Wheel Drive (MFWD) Operation—If Equipped.....678
    Mechanical Front Wheel Drive (MFWD) Differential Operation—If Equipped.....680
    Park Brake Operation.....683
    Service Brake Operation.....685
    Power Boost Service Brake Valve Operation.....686
  Group 15: Diagnostic Information.....658
    Hydraulic Circuit—Symbols.....695
    Power Train Component Location.....696
    Power Train Schematic—Neutral.....697
    Power Train Schematic—First Forward.....699
    Diagnose Transmission Malfunctions.....701
    Transmission Slippage.....658
    Machine Lacks Power or Moves Slow.....658
    Transmission Overheats.....658
    Excessive Power Train Noise.....658
    No Power to Mechanical Front Wheel Drive (MFWD).....658
    No Power to One Wheel of Mechanical Front Wheel Drive (MFWD).....658
    No Differential Lock Operation.....676
    Differential Lock Slips or Chatters When Engaged.....658
    Differential Lock Will Not Release.....658
    Rear Axle Overfilled With Oil.....658
    Poor Service Brakes.....659
    Brake Pedal Hard to Push.....659
    Service Brakes Will Not Release.....659
    Service Brakes Chatter or Noisy.....659
    Park Brake Will Not Hold.....659
    Park Brake Will Not Release.....659
  Group 20: Adjustments.....659
    Mechanical Park Brake Release—Towing.....747
    Service Brake Pedal Adjustment.....750
    Service Brake Bleed Procedure.....752
    Tracking Angle Check and Adjust.....756
    Toe-In Check and Adjust.....758
    Steering Angle Check and Adjust.....761
  Group 25: Tests.....659
    Transmission Oil Warm-Up Procedure.....765
    Transmission Oil Sampling Procedure—If Equipped.....767
    Transmission Overall Test Connections, Ports, and Locations.....768
    Torque Converter Stall Speed Test.....770
    Torque Converter Inlet Pressure Test.....773
    Power Boost Service Brake Valve Leakage Test.....778
    Park Brake Release Pressure Test.....781
    Transmission System Pressure Test.....783
    Service Brake Boost Pressure Test.....786
    Clutch Pressure Test.....789
    Differential Lock Pressure Test.....791
    Mechanical Front Wheel Drive (MFWD) Pressure Test.....793
    Cooler In and Cooler Out Pressure Test.....795
    Solenoid Circuit Leakage Test.....799
    Transmission Pump Flow Test.....801
Section 9025: Hydraulic System.....804
  Group 05: Theory of Operation.....804
    Hydraulic System Operation.....808
    Hydraulic Pump Operation.....809
    Hydraulic Filter Operation.....810
    Steering Valve Operation.....816
    Ride Control Operation—If Equipped.....820
    System Relief Valve Operation.....822
    Circuit Relief Valve without Anticavitation—Loader and Backhoe.....823
    Circuit Relief Valve with Anticavitation—Backhoe Swing, Boom Lower.....825
    Circuit Relief Valve with Anticavitation—Backhoe Bucket Curl and Loader Bucket Dump.....826
    Backhoe Control Valve Operation.....828
    Loader and Stabilizer Control Valve Operation.....842
  Group 15: Diagnostic Information.....804
    Hydraulic System Schematic.....862
    Hydraulic System Component Location.....865
    Slow Steering Hydraulics.....804
    No Steering Hydraulics, Loader Hydraulics OK.....804
    Hard Steering, Loader Hydraulics OK.....804
    Steering Valve Does Not Return to Neutral.....804
    No Response When Steering Wheel is Turned, Loader Hydraulics OK.....804
    Machine Turns in Opposite Direction.....804
    Excessive Vibration of the Steering Wheel.....804
    Machine Turns When Steering Valve is in Neutral.....804
    Steering Wheel Kickback.....804
    Excessive Steering Wheel Turns to Steer Machine.....804
    Erratic (“Spongy”) Steering.....804
    Steering Wheel "Locks" Up.....804
    Poor Centering of Steering Wheel (Wheels Continue to Move After Steering Wheel is Stopped).....804
    Steering Wheel or Front Wheels Slowly Turn by Themselves When Using Backhoe or Loader.....804
    Steering Wheel Turns Apply Rear Axle Service Brakes.....804
    Steering Wheel Turns Freely With No Resistance or Action On Steered Wheels.....804
    Steering Wheel Turns With Slight Resistance and No Action On Steered Wheels.....804
    Wander—Machine Will Not Stay in a Straight Line.....805
    No Loader or Steering Hydraulics.....805
    No Loader Hydraulics.....805
    Low Loader Hydraulic Power.....805
    Low Hydraulic Power.....805
    Engine Pulls Down Excessively During Loader Operation.....805
    Engine Pulls Down Excessively During Backhoe Operation.....805
    Slow Hydraulic Functions.....805
    Backhoe Operates Slowly in One Function.....805
    Loader Operates Slowly in One Function.....805
    No Backhoe Power in One Function.....805
    No Loader Power in One Function.....805
    No Stabilizer Hydraulics.....805
    Slow Loader and Backhoe Hydraulics.....805
    Low Hydraulic Power (Low Hydraulic Pressure).....805
    Hydraulic Function Makes "Chattering" Noise.....805
    Functions Drift.....805
    Control Valve Sticks or Works Hard.....805
    Hydraulic Oil Overheats.....805
    Foaming Oil.....805
    Hydraulic Pump Leaking.....805
    Excessive Pump Noise.....805
  Group 20: Adjustments.....805
    Backhoe Control Lever to Valve Linkage (Two Lever) Adjustment.....953
    Auxiliary Selective Flow Control Valve Adjustment—If Equipped.....956
    Loader Bucket Self-Leveling Linkage and Return-To-Dig Switch Adjustment.....958
    Loader and Stabilizer Lever Adjustment.....961
    Ride Control Accumulator Charge Procedure.....965
    Ride Control Accumulator Charge Check Procedure.....968
    Ride Control Accumulator Hydraulic Pressure Release Procedure.....971
  Group 25: Tests.....805
    JT02156A Digital Pressure and Temperature Analyzer Kit Installation.....973
    Hydraulic Oil Warm-Up Procedure.....974
    Fluid Sampling Procedure—If Equipped.....975
    Hydraulic Oil Sampling Procedure—If Equipped.....980
    Hydraulic Circuit Pressure Release.....981
    Hydraulic Pump Flow Test.....982
    Backhoe Relief Valve Pressure Test.....985
    Loader Relief Valve Pressure Test.....989
    Hydraulic Oil Cooler Restriction Test.....991
    Circuit Relief Valve Test—With Remote Pump.....994
    Steering System Leakage Test.....999
    Steering Cylinder Leakage Test.....1002
    Function Drift Test.....1004
    Hydraulic Cylinder Leakage Test.....1013
    Loader and Stabilizer Control Valve Lockout Leakage Test.....1016
Section 9031: Heating and Air Conditioning.....1018
  Group 05: Theory of Operation.....1018
    Air Conditioning System Cycle Of Operation.....1021
  Group 15: Diagnostic Information.....1018
    Air Conditioning and Heater System Component Location.....1025
    Air Conditioning System Does Not Operate.....1018
    Air Conditioner Does Not Cool Interior of Cab.....1018
    Air Conditioner Runs Constantly, Too Cold.....1018
    Heater System Does Not Operate.....1018
    Heater Does Not Warm Interior of Cab.....1018
    Interior Windows Continue to Fog.....1018
  Group 25: Tests.....1018
    Refrigerant Cautions and Proper Handling.....1041
    R134a Refrigerant Cautions.....1042
    R134a Oil Charge Capacity.....1043
    R134a Refrigerant Charge Capacity.....1044
    Air Conditioner and Heater Operational Checks.....1045
    Air Conditioner Compressor Clutch Test.....1048
    Air Conditioner High/Low Pressure Switch Test.....1049
    Air Conditioner Freeze Control Switch Test.....1052
    R134a Air Conditioning System Test.....1055
    Operating Pressure Diagnostic Chart.....1058
    Expansion Valve Test.....1060
    Blower Motor Speed Switch Test.....1062
    Blower Motor Resistor Test.....1063
    Blower Motor Test.....1065
    Air Conditioning Mode Switch Test.....1067
    Air Conditioning System Leak Test.....1069
    Refrigerant Hoses and Tubing Inspection.....1070