Complete service manual with Electrical Wiring Diagrams for John Deere 326D, 328D and 332D Skid Steer Loader (EH Controls), with workshop information to maintain, diagnose, and service like professional mechanics.

John Deere 326D, 328D and 332D Skid Steer Loader workshop Diagnostics 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.

TM11438 - 326D, 328D and 332D Skid Steer Loader (EH Controls) Operation & Test Manual.pdf
TM11438 - 326D, 328D and 332D Skid Steer Loader (EH Controls) Operation & Test Manual.epub

Total Pages: 1,010 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
Foreword
   Technical Information Feedback Form
   General Information
      Safety
   Diagnostic Trouble Codes (DTCs)
      Engine Control Unit (ECU) Diagnostic Trouble Codes
      Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes
      Hydraulic Control Unit (HCU) Diagnostic Trouble Codes
      Left Joystick Controller (JSL)
      Right Joystick Controller (JSR)
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory of Operation
      Diagnostic Information
      Tests
   Electrical System
      System Information
      System Diagrams
      Sub-System Diagnostics
      Monitor Operation
      References
   Power Train
      Theory of Operation
      Diagnostic Information
      Tests
   Hydraulic System
      Theory of Operation
      Diagnostic Information
      Tests
   Hydrostatic System
      Theory of Operation
      Diagnostic Information
      Tests
   Heating and Air Conditioning
      Theory of Operation
      Diagnostic Information
      Tests
   Dealer Fabricated Tools
      Dealer Fabricated Tools

tm11438 - 326D, 328D and 332D Skid Steer Loader(EH Controls)

Table of Contents

Foreword

Technical Information Feedback Form

Section 9000: General Information

Group 01: Safety

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Clothing

Avoid Unauthorized Machine Modifications

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Fluids

Avoid High-Pressure Oils

Work In Ventilated Area

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Prepare for Emergencies

Clean Debris from Machine

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

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

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Service Tires Safely

Handle Cab Door Safely

Section 9001: Diagnostic Trouble Codes (DTCs)

Group 10: Engine Control Unit (ECU) Diagnostic Trouble Codes

Engine Control Unit (ECU) Diagnostic Trouble Codes

000029.03 - Foot Throttle Sensor Out of Range High

000029.04 - Foot Throttle Sensor Out of Range Low

000029.14 - Foot Throttle Sensor (Out of Range High)

000091.03 - Hand Throttle Sensor Out of Range High

000091.04 - Hand Throttle Sensor Out of Range Low

000091.14 - Hand Throttle Sensor (Out of Range High)

000100.03 - Engine Oil Pressure High

000107.00 - Engine Air Filter Switch Data Above Normal

000171.03 - Ambient Air Temperature Out of Range High

000171.04 - Ambient Air Temperature Out of Range Low

000237.13 - Vehicle Identification Number

000647.05 - Fan Coil Output Driver Out of Range Low

000647.06 - Fan Coil Output Driver Out of Range High

000647.16 - Reversing Fan Switch Active Too Long

000647.30 - Fan Coil Output Driver Unknown Fault

000676.05 - Glow Plug Relay Output Out of Range Low

000676.06 - Glow Plug Relay Output Out of Range High

001110.31 - Engine Protection Has Shut Down Engine

001321.05 - Starter Relay Output Out of Range Low

001321.06 - Starter Relay Output Out of Range High

001321.16 - Starter Relay Output Moderately High Value

001508.00 - Hydraulic Oil Temperature Data Above Normal

001508.03 - Hydraulic Oil Temperature Out of Range High

001508.04 - Hydraulic Oil Temperature Out of Range Low

001713.00 - Hydraulic Filter Restriction Switch Data Above Normal

002023.09 - No EMU on CAN Bus Abnormal Data Rate

522826.05 - Fan Reversing Coil Output Out of Range Low

522826.06 - Fan Reversing Coil Output Out of Range High

Group 20: Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes

Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes

000070.02 - Park Brake Release Input Erratic or Bad Data

000070.04 - Park Brake Release Input Out of Range Low

000096.03 - Fuel Level Sensor Out of Range High

000096.04 - Fuel Level Sensor Out of Range Low

000158.00 - System Voltage Data Above Normal

000158.01 - System Voltage Data Below Normal

000162.04 - 2-Speed Switch Input Out of Range Low

000920.05 - Alarm Output Out of Range Low

000920.06 - Alarm Output Out of Range High

001196.11 - Anti Theft Unknown Fault

001504.04 - Seat Switch Input Out of Range Low

001550.05 - AC Compressor Clutch Output Out of Range Low

001550.06 - AC Compressor Clutch Output Out of Range High

002000.09 - No ECU Data on CAN Bus Abnormal Data Range

002228.09 - No HCU Data on CAN Bus Abnormal Data Range

003413.04 - Door Switch Input Out of Range Low

003597.03 - 5 Volt Sensor Supply 1 Out of Range High

003597.04 - 5 Volt Sensor Supply 1 Out of Range Low

520850.04 - Over Ride Switch Input Out of Range Low

521050.04 - Aux Flow On-Off Switch Input Out of Range Low

522379.05 - Park Brake Release Output Out of Range Low

522379.06 - Park Brake Release Output Out of Range High

522398.02 - Park Brake Run Switch Input Erratic or Bad Data

522398.04 - Park Brake Run Switch Input Out of Range Low

522820.05 - High Flow Driver Out of Range Low

522820.06 - High Flow Driver Out of Range High

522826.04 - VSF Purge Switch Input Out of Range Low

522827.04 - VSF Auto Switch Input Out of Range Low

522828.04 - Creep Mode Switch Input Out of Range Low

522859.04 - Lap Bar Switch Input Out of Range Low

523217.06 - Hydraulic Valve Power 3 Out of Range High

523218.06 - Propel Valve Power 2 to HCU Out of Range High

523219.06 - Hydraulic Valve Power 1 Out of Range High

523693.03 - Aux Hyd Channel 1 Input Out of Range High

523693.04 - Aux Hyd Channel 1 Input Out of Range Low

523694.03 - Aux Hyd Channel 2 Input Out of Range High

523694.04 - Aux Hyd Channel 2 Input Out of Range Low

523694.12 - Aux Hyd Channel 2 Input Device Fault

523822.04 - High Flow Switch Input Out of Range Low

523917.05 - Two Speed Output Out of Range Low

523917.06 - Two Speed Output Out of Range High

523935.05 - Aux Hyd Extend Output Out of Range Low

523935.06 - Aux Hyd Extend Output Out of Range High

523941.05 - Aux Hyd Retract Output Out of Range Low

523941.06 - Aux Hyd Retract Output Out of Range High

524225.04 - Remote Start Input Out of Range Low

524264.11 - Checksum Error Unknown Fault

Group 30: Hydraulic Control Unit (HCU) Diagnostic Trouble Codes

Hydraulic Control Unit (HCU) Diagnostic Trouble Codes

000168.03 - Unswitched Power Input Out of Range High

000168.04 - Unswitched Power Input Out of Range Low

001594.00 - Left Speed Sensor Input Data Above Normal

001594.01 - Left Speed Sensor Input Data Below Normal

001594.02 - Left Speed Sensor Input Erratic or Bad Data

001594.14 - Left Speed Sensor Input

001595.00 - Right Speed Sensor Input Data Above Normal

001595.01 - Right Speed Sensor Input Data Below Normal

001595.02 - Right Speed Sensor Input Erratic or Bad Data

001595.14 - Right Speed Sensor Input

002201.09 - Right Joystick CAN Data Abnormal Data Rate

002213.09 - Left Joystick CAN Data Abnormal Data Rate

002660.07 - Right Joystick X-axis Mechanical Fault

002661.07 - Right Joystick Y-axis Mechanical Fault

002697.07 - Left Joystick X-axis Mechanical Fault

002698.07 - Left Joystick Y-axis Mechanical Fault

003597.03 - 5 Volt Sensor Supply 1 Out of Range High

003597.04 - 5 Volt Sensor Supply 1 Out of Range Low

520194.13 - Machine Model ID Wrong or Missing Calibrate Error

520194.14 - Machine Model ID Wrong or Missing

520652.05 - Bucket Curl Solenoid Current Out of Range Low

520652.06 - Bucket Curl Solenoid Current Out of Range High

520652.16 - Bucket Curl Solenoid Current Moderately High Value

520653.05 - Bucket Dump Solenoid Current Out of Range Low

520653.06 - Bucket Dump Solenoid Current Out of Range High

520653.16 - Bucket Dump Solenoid Current Moderately High Value

520849.03 - Float Switch Input Out of Range High

520849.04 - Float Switch Input Out of Range Low

522447.05 - Right Pump Fwd Sol Current Out of Range Low

522447.06 - Right Pump Fwd Sol Current Out of Range High

522447.16 - Right Pump Fwd Sol Current Moderately High Value

522448.05 - Right Pump Rev Sol Current Out of Range Low

522448.06 - Right Pump Rev Sol Current Out of Range High

522448.16 - Right Pump Rev Sol Current Moderately High Value

522449.05 - Left Pump Rev Sol Current Out of Range Low

522449.06 - Left Pump Rev Sol Current Out of Range High

522449.16 - Left Pump Rev Sol Current Moderately High Value

522450.05 - Left Pump Fwd Sol Current Out of Range Low

522450.06 - Left Pump Fwd Sol Current Out of Range High

522450.16 - Left Pump Fwd Sol Current Moderately High Value

523217.03 - Hydraulic Valve Power 3 to HCU Out of Range High

523217.04 - Hydraulic Valve Power 3 to HCU Out of Range Low

523218.03 - Propel Valve Power 2 to HCU Out of Range High

523218.04 - Propel Valve Power 2 to HCU Out of Range Low

523219.03 - Hydraulic Valve Power 1 to HCU Out of Range High

523219.04 - Hydraulic Valve Power 1 to HCU Out of Range Low

523411.05 - Boom Down Solenoid Current Out of Range Low

523411.06 - Boom Down Solenoid Current Out of Range High

523411.16 - Boom Down Solenoid Current Moderately High Value

523414.05 - Boom Up Solenoid Current Out of Range Low

523414.06 - Boom Up Solenoid Current Out of Range High

523414.16 - Boom Up Solenoid Current Moderately High Value

523426.05 - Hyd Port Lock Solenoid Current Out of Range Low

523426.06 - Hyd Port Lock Solenoid Current Out of Range High

524264.11 - Checksum Error Unknown Fault

Group 40: Left Joystick Controller (JSL)

Left Joystick Controller (JSL) Diagnostic Trouble Codes

002697.03 - Left Joystick X-axis Out of Range High

002697.04 - Left Joystick X-axis Out of Range Low

002697.13 - Left Joystick X-axis Calibrate Error

002697.14 - Left Joystick X-axis Error

002698.03 - Left Joystick Y-axis Out of Range High

002698.04 - Left Joystick Y-axis Out of Range Low

002698.13 - Left Joystick Y-axis Calibrate Error

002698.14 - Left Joystick Y-axis Error

Group 50: Right Joystick Controller (JSR)

Right Joystick Controller (JSR) Diagnostic Trouble Codes

002660.03 - Right Joystick X-axis Out of Range High

002660.04 - Right Joystick X-axis Out of Range Low

002660.13 - Right Joystick X-axis Calibrate Error

002660.14 - Right Joystick X-axis See Manual

002661.03 - Right Joystick Y-axis Out of Range High

002661.04 - Right Joystick Y-axis Out of Range Low

002661.13 - Right Joystick Y-axis Calibrate Error

002661.14 - Right Joystick Y-axis See Manual

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

John Deere Engine

Cold Start Operation

Group 15: Diagnostic Information

John Deere Engine

Engine Cooling System Component Location

Engine Fuel System Component Location

Engine Intake and Exhaust Component Location

Engine Hard to Start or Does Not Start When Cold

Group 25: Tests

John Deere Engine

Engine Power Test Using Turbocharger Boost Pressure

Section 9015: Electrical System

Group 05: System Information

Electrical Diagram Information

Electrical Schematic Symbols

Group 10: System Diagrams

Fuse and Relay Specifications

System Functional Schematic, Wiring Diagram and Component Location Master Legend

System Functional Schematic

Engine Harness (W1) Component Location

Engine Harness (W1) Wiring Diagram

Cab Harness (W2) Component Location

Cab Harness (W2) Wiring Diagram

Main Harness (W3) Component Location

Main Harness (W3) Wiring Diagram

Dual Flasher Harness (W5) Component Location

Dual Flasher Harness (W5) Wiring Diagram

Rear Light Harness (W7) Component Location

Rear Light Harness (W7) Wiring Diagram

Radio Harness (W8) Component Location

Radio Harness (W8) Wiring Diagram

Fan Speed Solenoid Harness (W9) Component Location

Fan Speed Solenoid Harness (W9) Wiring Diagram

Hydraulic Valve Harness (W10) Component Location

Hydraulic Valve Harness (W10) Wiring Diagram

Attachment Control Frame Harness (W11) Component Location

Attachment Control Frame Harness (W11) Wiring Diagram

Attachment Control Boom Harness (W12) Component Location

Attachment Control Boom Harness (W12) Wiring Diagram

Quik-Tatch™ Frame Harness (W13) Component Location

Quik-Tatch™ Frame Harness (W13) Wiring Diagram

Quik-Tatch™ Boom Harness (W14) Component Location

Quik-Tatch™ Boom Harness (W14) Wiring Diagram

Quik-Tatch™ Actuator Harness (W15) Component Location

Quik-Tatch™ Actuator Harness (W15) Wiring Diagram

Heater and Air Conditioner Harness (W16) Component Location

Heater and Air Conditioner Harness (W16) Wiring Diagram

Fan Bypass Solenoid Harness (W17) Component Location

Fan Bypass Solenoid Harness (W17) Wiring Diagram

Group 15: Sub-System Diagnostics

Starting Circuit Theory of Operation

Controller Area Network (CAN) Theory of Operation

Engine Control Unit (ECU) Circuit Theory of Operation

Engagement and Monitor Unit (EMU) Circuit Theory of Operation

Electrohydraulic (EH) Controls Circuit Theory of Operation

Back-Up Alarm Circuit Theory of Operation

Quik-Tatch Circuit Theory of Operation

Group 16: Monitor Operation

Engagement and Monitor Unit Operation

Engagement and Monitor Unit Data Items

Engagement and Monitor Unit Display Messages

Engagement and Monitor Unit Service Menu Operation

Engagement and Monitor Unit Initial Configuration

Anti-Theft Security System Operation—If Equipped

Anti-Theft Security System Configuration—If Equipped

Anti-Theft Security System Enable—If Equipped

Group 20: References

Service ADVISOR™ Connection Procedure

Reading Diagnostic Trouble Codes (DTCs)

Electrical Component Checks

Electrical Component Specifications

Solenoid Circuit Test

Solenoid Test

Alternator Test

Controller Area Network (CAN) Circuit Test

Boom and Bucket Calibration

Auxiliary Hydraulics Calibration

Manual Tracking Adjustment Procedure

Hydrostatic System Calibration

Engine Control Unit (ECU) Remove and Install

Hydraulic Control Unit (HCU) Remove and Install

Engagement and Monitor Unit (EMU) Remove and Install

Control Panel Remove and Install

Left Joystick Controller (JSL) Remove and Install

Right Joystick Controller (JSR) Remove and Install

Joystick Disassemble and Assemble

Backup Alarm Remove and Install

Battery Remove and Install

Motor Speed Sensor Remove and Install

Replace (Pull Type) Metri-Pack™ Connectors

Replace (Push Type) Metri-Pack™ Connectors

Replace Metri-Pack™ Connectors

Replace WEATHER PACK WEATHER PACK is a trademark of Packard Electric. Connector

Install WEATHER PACK WEATHER PACK is a trademark of Packard Electric. Contact

Replace DEUTSCH DEUTSCH is a trademark of Deutsch Co. Rectangular or Triangular Connectors

Replace DEUTSCH DEUTSCH is a trademark of the Deutsch Co. Circular Connectors

Replace DEUTSCH DEUTSCH is a trademark of the Deutsch Co. Connectors

Install DEUTSCH DEUTSCH is a trademark of the Deutsch Co. Contact

Replace CINCH™ Connectors

Install CINCH™ Contact

Repair 32 and 48 Way CINCH™ Connectors

Remove Connector Body from Blade Terminals

Section 9020: Power Train

Group 05: Theory of Operation

Power Train System Operation

Chain Case Operation

Drive Chain Operation

Drive Axle Operation

Group 15: Diagnostic Information

Power Train Component Location

Oil Leak From Power Train

Excessive Axle Play

Drive Chain Noise

Grinding Noise

One Drive Wheel Not Powered

Both Wheels On One Side Not Powered

Group 25: Tests

Drive Chain Tension Check and Adjustment

Section 9025: Hydraulic System

Group 05: Theory of Operation

Hydraulic System Operation

Hydraulic Oil Filter Manifold Operation

High Flow Pump Operation—If Equipped

Self Leveling Valve Operation—If Equipped

Hydraulic Pump Operation

Hydraulic Fan Operation

Hydraulic Control Valve Operation

Group 15: Diagnostic Information

Hydraulic System Schematic

Hydraulic System Component Location

Diagnose Hydraulic System Malfunctions

No Hydraulic Functions

Boom Will Not Raise

Boom Will Not Lower

Bucket Will Not Dump

Bucket Will Not Curl

Bucket Will Not Self Level When Boom is Raised

Bucket Dumps During Self Leveling Cycle

Boom Drifts Down

Boom Drifts Up

Bucket Drifts Down

Bucket Drifts Up

Hydraulic Functions Slow or No Power

Hydraulic Functions “Jerky” or “Spongy”

Hydraulic System Noise

Hydraulic Oil Overheats

Hydraulic Fan System Malfunctions

Hydraulic Fan Will Not Reverse Direction

Group 25: Tests

JT05800 Digital Thermometer Installation

JT02156A Digital Pressure/Temperature Analyzer Installation

Remote Start Box Installation

Hydraulic System Pressure Release

Pilot Control Accumulator Precharge Test

Port Lock Solenoid Valve and Port Lock Spool Test

Boom Lowering Valve Test (S.N. —194401)

Boom Release Cable Adjustment (S.N. —194401)

Hydraulic System Relief Valve Test

Charge Pressure Relief Valve Test

High Flow Relief Valve Test

Circuit Relief Valve Test

Function Drift Test

Hydraulic Cylinder Leakage Test

Hydraulic Pump Flow Test

Charge Pump Flow Test

Hydraulic Fan Motor Speed Test

Hydraulic Fan Motor Case Drain Test

Fan Bypass Valve Test

Hydraulic Oil Cooler Bypass Valve Test—If Equipped

Section 9026: Hydrostatic System

Group 05: Theory of Operation

Hydrostatic System Operation

Hydrostatic Pump Operation

Charge Pump Operation

Hydrostatic Motor Operation—Single Speed

Hydrostatic Motor Operation—Two Speed

Hydrostatic Control Valve Operation

Park Brake System Operation

Steering Control Operation

Group 15: Diagnostic Information

Hydrostatic System Schematic

Hydrostatic System Component Location

Machine Does Not Move In Either Direction

Hydrostatic Pump Or Hydrostatic Motor Noise

Slow Response To Changes In Speed

Low Power

Wheels or Tracks Powered On One Side, Not The Other

Machine Will Not Shift Into Or Out Of High Speed

Mistracking

Park Brake Does Not Hold (Single Speed)

Park Brakes Do Not Release (Single Speed)

Grinding Noise While Operating Machine (Single Speed)

Park Brake Does Not Hold (Two Speed)

Park Brakes Do Not Release (Two Speed)

Grinding Noise While Operating Machine (Two Speed)

Group 25: Tests

Engine Speed Control for Testing

Hydrostatic Pump System Pressure Relief Test

Hydrostatic Pump Flow Test

Hydrostatic Pump Mechanical Neutral Adjustment

Hydrostatic Pump Control Neutral Adjustment

Wheel Speed Test

Park Brake Release Pressure Test

Hydrostatic Motor Case Drain Test

Section 9031: Heating and Air Conditioning

Group 05: Theory of Operation

Air Conditioning System Cycle of Operation

Group 15: Diagnostic Information

Air Conditioning and Heater System Component Location

Air Conditioning System Does Not Operate

Air Conditioning Does Not Cool Interior of Cab

Air Conditioner Runs Constantly, Too Cool

Heater System Does Not Operate

Heater Does Not Warm Interior of Cab

Interior Windows Continue to Fog

Group 25: Tests

Refrigerant Cautions and Proper Handling

Air Conditioner and Heater Operational Checks

Refrigerant Leak Testing

Air Conditioner Compressor Clutch Test

Air Conditioning High-Low Pressure Switch Test

Air Conditioner Freeze Control Switch Test

R134a Refrigerant Cautions

R134a Oil Charge Capacity

R134a Refrigerant Charge Capacity

Operating Pressure Diagnostic Chart

Section 9900: Dealer Fabricated Tools

Group 99: Dealer Fabricated Tools

DFT1318 Motor Speed Sensor Test Harness

DFT1325 Solenoid Power Harness

John Deere 326D, 328D and 332D Skid Steer Loader (EH Controls) Operation & Test Service Manual (TM11438)