John Deere Loader WL56 4WD Operation & Test Technical Manual TM14283X19

[Hyundai]

Download this document, you need 2000 Gallons

John Deere Loader WL56 4WD Operation & Test Technical Manual TM14283X19
Size: 37.33 MB
Format: PDF
Language: English
Brand: John Deere
Type of Machine: Loader
Type of Manual: Operation & Test Technical Manual
Model: John Deere WL56 4WD Loader
PIN: 1YNWL56_ _ _ D000326—
Part Number: TM14283X19
Publication Date: 2020
Number of Pages: 369 Pages

Contents:
General Information

Safety​

Recognize Safety Information​

Follow Safety Instructions​

Operate Only If Qualified​

Wear Protective Equipment​

Avoid Unauthorized Machine Modifications​

Add Cab Guarding for Special Uses​

Inspect Machine​

Stay Clear of Moving Parts​

Avoid High-Pressure Fluids​

Avoid High-Pressure Oils​

Work In Ventilated Area​

Prevent Fires​

Clean Debris from Machine​

Prevent Battery Explosions​

Handle Chemical Products Safely​

Dispose of Waste Properly​

Prepare for Emergencies​

Use Steps and Handholds Correctly​

Start Only From Operator′s Seat​

Use and Maintain Seat Belt​

Prevent Unintended Machine Movement​

Avoid Work Site Hazards​

Use Special Care When Operating Loader​

Keep Riders Off Machine​

Avoid Backover Accidents​

Avoid Machine Tip Over​

Operating on Slopes​

Operating or Traveling On Public Roads​

Inspect and Maintain ROPS​

Add and Operate Attachments Safely​

Park and Prepare for Service Safely​

Service Cooling System Safely​

Service Tires Safely​

Remove Paint Before Welding or Heating​

Make Welding Repairs Safely​

Drive Metal Pins Safely​

Diagnostics

Engine Control Unit (ECU) Diagnostic Trouble Codes​

Engine Control Unit (ECU) Diagnostic Trouble Codes​

91.03— Primary Analog Throttle Out of Range High​

91.04— Engine Throttle Open or Short​

97.03— Water-in-Fuel Signal Out of Range High​

97.04— Water-in-Fuel Signal Out of Range Low​

97.16— Water-in-Fuel Detected​

110.00— Coolant Temperature Signal Extremely High​

110.03— Coolant Temperature Signal Out of Range High​

110.04— Coolant Temperature Signal Out of Range Low​

110.15— Coolant Temperature Signal Slightly High​

110.16— Coolant Temperature Signal Moderately High​

Operational Checkout Procedure

Operational Checkout Procedure​

Operational Checkout​

Engine

Theory of Operation​

John Deere Engine​

Cold Start Aid System Theory of Operation—If Equipped​

System Diagrams​

Engine Fuel System Component Location​

Engine Cooling System Component Location​

Engine Intake and Exhaust Component Location​

Diesel Fired Coolant Heater (A8) Component Location—If Equipped​

Diagnostic Information​

John Deere Engine​

Engine Cranks/Will Not Start​

Engine Misfires-Runs Irregularly​

Engine Does Not Develop Full Power​

Engine Emits Excessive White Exhaust Smoke​

Engine Emits Excessive Black or Gray Exhaust Smoke​

Engine Will Not Crank​

Engine Idles Poorly​

Abnormal Engine Noise​

Excessive Fuel Consumption​

Fuel in Oil​

Low Pressure Fuel System Check​

Adjustments​

John Deere Engine​

Tests​

John Deere Engine​

Electrical System

Theory of Operation​

Start and Charge Circuits Theory of Operation​

Controller Area Network (CAN) Circuits Theory of Operation​

Engine Control Unit (ECU) Circuits Theory of Operation​

Display Unit Circuits Theory of Operation​

Transmission Control Unit (TCU) Circuits Theory of Operation​

Park Brake Circuit Theory of Operation​

JDLink™ Circuit Theory of Operation—IF Equipped​

System Diagrams​

Electrical Diagram Information​

Electrical Schematic Symbols​

System Functional Schematic, Wiring Diagram, and Component Location Master Legend​

System Functional Schematic​

Power and Ground Cables (W1) Component Location​

Loader Frame Harness (W2) Component Location​

Loader Frame Harness (W2) Wiring Diagram​

Load Center Harness (W3) Component Location​

Load Center Harness (W3) Wiring Diagram​

Engine Harness (W6) Component Location​

Engine Harness (W6) Wiring Diagram​

Beacon Light Harness (W8) Component Location—If Equipped​

Beacon Light Harness (W8) Wiring Diagram—If Equipped​

Rear Frame Harness (W13) Component Location​

Rear Frame Harness (W13) Wiring Diagram​

License Plate Light Harness (W14) Component Location—If Equipped​

License Plate Light Harness (W14) Wiring Diagram—If Equipped​

Cab Roof Harness (W19) Component Location​

Cab Roof Harness (W19) Wiring Diagram​

Heater and Air Conditioner Harness (W20) Component Location​

Heater and Air Conditioner Harness (W20) Wiring Diagram​

Radio Harness (W23) Component Location—If Equipped​

Radio Harness (W23) Wiring Diagram—If Equipped​

Fuel Injector Harness (W32) Component Location​

Fuel Injector Harness (W32) Wiring Diagram​

Auxiliary Fuel Filter Harness (W33) Component Location—If Equipped​

Auxiliary Fuel Filter Harness (W33) Wiring Diagram—If Equipped​

Diesel Fired Coolant Heater Harness (W34) Component Location—If Equipped​

Diesel Fired Coolant Heater Harness (W34) Wiring Diagram—If Equipped​

JDLink™ Harness (W36) Component Loaction—If Equipped​

JDLink™ Harness (W36) Wiring Diagram—If Equipped​

Fuse and Relay Specifications​

Diagnostic Information​

Service ADVISOR™ Diagnostic Application​

Service ADVISOR™ Connection Procedure​

Reading Diagnostic Trouble Codes with Service ADVISOR™ Diagnostic Application​

Intermittent Diagnostic Trouble Code (DTC) Diagnostics​

Diagnostic Trouble Codes—After Machine Repair​

Electrical Component Specifications​

Adjustments​

Boom Height Kickout (BHKO) Adjustment​

Return-to-Dig Adjustment​

Tests​

Alternator Test​

Transmission Control Valve Solenoid Check​

Clutch Cut-Off Sensor Check​

Connector Terminal Test​

Power Train

Theory of Operation​

TeamMate™ IV Axles​

Power Train Operation​

Torque Converter Operation​

Transmission Operation​

Transmission Operation—First Gear Forward​

Transmission Clutch Pack Engagement and Solenoids Activated​

Clutch Pack Operation​

Transmission Hydraulic System​

Transmission Control Valve Component Operation​

Transmission Clutch Modulation Operation​

Thermal Bypass Valve Operation​

Axle Oscillation​

Inboard Planetary Axle Operation​

Differential Operation​

Final Drive—Axle Operation​

Service Brake Operation​

Park Brake Operation​

System Diagrams​

Transmission System Schematic—First Forward​

Power Train Component Location​

Transmission Component Location​

Diagnostic Information​

Transmission Clutch Slippage​

Machine Will Not Move in Either Direction​

Machine Will Not Shift Correctly​

Transmission System Pressure Is Low in Neutral​

Transmission Pressure Is Low (One or Two Gear Ranges)​

Transmission Shifts Too Slow​

Transmission Shifts Too Fast​

Machine Creeps in Neutral​

Transmission Hydraulic System Overheats​

Transmission Excessive Noise​

Oil Aerated​

Oil Ejected from Filler Tube​

Machine Vibrates​

Machine Power and Acceleration Low​

Torque Converter Stall RPM​

Differential Oil Level Rises​

Differential Oil Level Low​

Differential and Axle Noise Excessive​

Axle Overheats​

Service Brakes Poor or Do Not Apply​

Service Brakes Aggressive​

Service Brakes Dragging​

Service Brakes Lock Up​

Service Brakes Chatter​

Service Brake Warning Light On​

Driveline Excessive Vibration or Noise​

Park Brake Will Not Hold​

Park Brake Will Not Release​

Park Brake Overheats​

Park Brake Light Does Not Come On​

Park Brake Will Not Apply​

Adjustments​

Service Brake Bleeding Procedure​

External Service Brake Inspection​

Service Brake Accumulator​

Transmission Sensor Adjustment​

Park Brake Adjustment​

Tests​

Transmission Oil Warm-Up Procedure​

Park Brake Pressure Test​

Park Brake Drag Test​

Transmission Pump Flow Test​

Transmission System Pressure Test​

Transmission Clutch Pressure Test​

Transmission Element Leakage Test​

Transmission Lube Pressure Test​

Torque Converter-In Pressure Test​

Torque Converter-Out Pressure Test​

Torque Converter Relief Pressure Test​

Torque Converter—Out Flow Test​

Torque Converter Stall Speed Test​

Transmission Oil Cooler Thermal Bypass Valve Temperature Test​

Transmission Oil Cooler Thermal Bypass Valve Pressure Test​

Transmission Oil Cooler Restriction Test​

Axle Breather Test​

Hydraulic System

Theory of Operation​

Loader Hydraulic System Operation​

Loader Hydraulic Pump Operation​

Hydraulic Pump Manifold Operation​

Steering System Component Operation​

Steering Valve Operation​

Pilot Pressure Reducing Valve Operation​

Service Brake Hydraulic System Operation​

Service Brake Accumulators Operation​

Service Brake Valve Operation​

Pilot Control Lever Operation​

Loader Control Valve Operation​

Loader Control Valve with Auxiliary Function Operation—If Equipped​

Boom Section Operation-Boom Down and Steering​

Bucket Section Operation​

Auxiliary Section Operation—If Equipped​

Main Relief Valve Operation​

Circuit Relief With Anticavitation Valve Operation​

Anticavitation Valve Operation​

Hydraulic Return Filter Operation​

System Diagrams​

Hydraulic System Schematic​

Steering Circuit Component Location​

Loader Circuit Component Location​

Loader Circuit with Auxiliary Function Component Location—If Equipped​

Service Brake and Park Brake Component Location​

Hydraulic Pump Manifold (Hydraulic System Component Location)​

Diagnostic Information​

No Hydraulic Functions​

Hydraulic Functions Slow​

Loader Hydraulic Pump Noisy​

Loader/Steering Hydraulic Pump Noisy​

No Steering Function​

Boom Float Function Not Working​

One Hydraulic Function Not Working​

Hydraulic Function Drifts Down​

Boom Down Does Not Work (Engine Off)​

Oil Overheats​

Hydraulic Oil Foams​

Constant Steering Required to Maintain Straight Travel​

Slow Steering Wheel Movement Will Not Cause Frame Movement​

Steering Wheel Turns Without Resistance and Causes No Frame Movement​

Steering Erratic​

Steering Wheel Free Play​

Orbital Steering Valve Binds or Locks Up​

Steering Wheel Turns By Itself​

Machine Turns in Opposite Direction as Steering Wheel​

Steering Wheel Kickback​

Steering Jerky​

Adjustments​

Pilot Control Lever Adjustment​

Accumulator Precharge​

Tests​

Hydraulic Oil Sampling Procedure​

Hydraulic Oil Warm-Up Procedure​

Vacuum Pump Installation​

Hydraulic System Pressure and Accumulators Discharge​

JT02156A Digital Pressure and Temperature Analyzer Kit Installation​

Steering/Loader Hydraulic Pump Flow Test​

Loader Hydraulic Pump Flow Test​

Main Relief Valve Pressure Test​

Circuit Relief with Anticavitation Valve Pressure Test​

Loader Cylinder Drift Test​

Boom, Bucket, and Steering Cylinder Leakage Test​

Hydraulic Oil Cooler Restriction Test​

Orbital Steering Valve Leakage Test​

Steering Cylinder Drift Test​

Pilot Control Valve Pressure Test​

Pilot Pressure Reducing Valve Pressure Test​

Cycle Time Test​

Service Brake Accumulator Gas Precharge and Low Brake Pressure Warning Test​

Service Brake Valve Pressure Test​

Service Brake Valve Leakage Test​

Hydraulic Oil Filter Inspection Procedure​

Heating and Air Conditioning

Theory of Operation​

Air Conditioning System Cycle of Operation​

System Diagrams​

Air Conditioner and Heater Component Location​

Diagnostic Information​

Air Conditioning System Does Not Operate​

Air Conditioner Does Not Cool Interior of Cab​

Air Conditioning Runs Constantly, Too Cold​

Heater System Does Not Operate​

Heater Does Not Warm Interior of Cab​

Interior Windows Continue to Fog​

Tests​

Refrigerant Cautions and Proper Handling​

R134a Refrigerant Cautions​

R134a Oil Charge Capacity​

R134a Refrigerant Charge Capacity​

Refrigerant Hoses and Tubing Inspection​

R134a Air Conditioning System Test​

Operating Pressure Diagnostic Chart​

Air Conditioning High/Low Pressure Switch Test​

Freeze Control Switch Test​

Refrigerant Leak Testing​

Page Number