Complete Diagnosis and Test manual with Electrical Wiring Diagrams for John Deere Skid Steer Loaders 326E (EH Controls, IT4/S3A Engines) , with workshop information to maintain, diagnose and service like professional mechanics.

John Deere Skid Steer Loaders 326E (EH Controls) workshop Diagnostics and Test 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.

TM13090X19 - John Deere Skid Steer Loaders 326E (EH Controls) Technical Manual - Operation and Test.PDF
TM13090X19 - John Deere Skid Steer Loaders 326E (EH Controls) Technical Manual - Operation and Test.epub

Total Pages: 1,512 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS (PIN: 1T0326E***G254998-)
Foreword
   Manual Identification-READ THIS FIRST!
   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) Diagnostic Trouble Codes
      Right Joystick Controller (JSR) Diagnostic Trouble Codes
      Sealed Switch Module (SSM) Diagnostic Trouble Codes
      Vehicle Control Unit (VCU) Diagnostic Trouble Codes
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory of Operation
      Diagnostic Information
   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
      Adjustments
      Tests
   Hydrostatic System
      Theory of Operation
      Diagnostic Information
      Tests
   Heating and Air Conditioning
      Theory of Operation
      Diagnostic Information
      Tests
   Dealer Fabricated Tools

tm13090x19 - 326E Skid Steer Loader(EH Controls)

Table of Contents

Foreword

Manual Identification—READ THIS FIRST!

Section 9000: General Information

Group 01: Safety

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

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

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

000029.00 - Foot Throttle

000029.01 - Foot Throttle

000029.02 - Foot Throttle

000029.03 - Foot Throttle

000029.04 - Foot Throttle

000029.08 - Foot Throttle

000029.15 - Foot Throttle

000091.00 - Acceleration / Sensor 1

000091.01 - Acceleration / Sensor 1

000091.02 - Acceleration / Sensor 1

000091.03 - Acceleration / Sensor 1

000091.04 - Acceleration / Sensor 1

000091.15 - Acceleration / Sensor 1

000100.01 - Oil Pressure Switch

000100.04 - Oil Pressure Switch

000167.01 - Charging System Voltage Extremely Low

000167.04 - Charging System Voltage Out of Range Low

000639.12 - Communication System

001202.02 - Anti Theft Password Representation

001485.04 - Main Relay / ECU

001485.07 - Main Relay / ECU

522242.02 - Cold Start Aid Solenoid

522242.03 - Cold Start Aid Solenoid

522242.04 - Cold Start Aid Solenoid

522243.02 - Start Assist / Relay

522243.03 - Start Assist / Relay

522243.04 - Start Assist / Relay

522243.05 - Start Assist / Relay

522243.06 - Start Assist / Relay

522323.00 - Air Filter Pressure Differential Extremely High

522402.04 - Auxiliary Speed Sensor

522596.09 - ECU Communication Fault

522597.09 - ECU Communication Fault

522599.09 - ECU Communication Fault

522600.09 - ECU Communication Fault

522601.09 - ECU Communication Fault

522609.09 - ECU Communication Fault

522618.09 - ECU Communication Fault

522619.09 - ECU Communication Fault

522730.12 - Vehicle Immobilizer System CAN Communication Error

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

Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes

000070.02 - Park Brake / Release Input

000070.04 - Park Brake / Release Input

000096.03 - Fuel Level / Sensor

000096.04 - Fuel Level / Sensor

000158.00 - System Voltage

000158.01 - System Voltage

000162.04 - 2-Speed / Switch Input

000234.14 - Software Mismatch

000920.05 - Alarm Output

000920.06 - Alarm Output

001196.11 - Anti Theft

001504.04 - Seat Switch / Input

002000.09 - No ECU Data / On CAN Bus

002142.09 - No SSM Data / On CAN Bus

002228.09 - No HCU Data / On CAN Bus

003413.04 - Door Switch / Input

003597.03 - 5 Volt Sensor / Supply 1

003597.04 - 5 Volt Sensor / Supply 1

521050.04 - Aux Flow On-Off / Switch Input

521197.04 - Courtesy Light / Switch Input

522379.05 - Park Brake / Release Output

522379.06 - Park Brake / Release Output

522398.02 - Park Brake Run / Switch Input

522398.04 - Park Brake Run / Switch Input

522826.00 - Fan Purge / Switch Input

522826.04 - Fan Purge / Switch Input

522827.04 - Fan Auto / Switch Input

522828.03 - Creep Mode/ Switch Input

522828.04 - Creep Mode/ Switch Input

522828.07 - Creep Mode/ Switch Input

522859.04 - Lap Bar/ Switch Input

523217.06 - Hydraulic Valve / Power 3 to HCU

523218.06 - Propel Valve / Power 2 to HCU

523219.06 - Hydraulic Valve / Power Output

523693.03 - Aux Hyd / Channel 1 Input

523693.04 - Aux Hyd / Channel 1 Input

523694.03 - Aux Hyd / Channel 2 Input

523694.04 - Aux Hyd / Channel 2 Input

523694.12 - Aux Hyd / Channel 2 Input

523822.04 - High Flow / Switch Input

523935.05 - Aux Hyd / Extend Output

523935.06 - Aux Hyd / Extend Output

523941.05 - Aux Hyd / Retract Output

523941.06 - Aux Hyd / Retract Output

523948.05 - Ride Control 1 / Solenoid Current

523948.06 - Ride Control 1 / Solenoid Current

523949.05 - Ride Control 2 / Solenoid Current

523949.06 - Ride Control 2 / Solenoid Current

524225.04 - Remote Start / Input

524264.11 - Checksum Error

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

Hydraulic Control Unit (HCU) Diagnostic Trouble Codes

000630.13 - Cal Missing / Or Incomplete

001594.00 - Left Speed / Sensor Input

001594.01 - Left Speed / Sensor Input

001594.02 - Left Speed / Sensor Input

001594.14 - Left Speed / Sensor Input

001595.00 - Right Speed / Sensor Input

001595.01 - Right Speed / Sensor Input

001595.02 - Right Speed / Sensor Input

001595.14 - Right Speed / Sensor Input

002201.09 - Right Joystick / CAN Data

002213.09 - Left Joystick / CAN Data

002660.07 - Right Joystick / X-Axis

002661.07 - Right Joystick / Y-Axis

002697.07 - Left Joystick / X-Axis

002698.07 - Left Joystick / Y-Axis

516193.03 - Left Foot Pedal / Signal 1

516193.04 - Left Foot Pedal / Signal 1

516193.07 - Left Foot Pedal / Signal 1

516193.16 - Left Foot Pedal / Signal 1

516193.18 - Left Foot Pedal / Signal 1

516194.03 - Left Foot Pedal / Signal 2

516194.04 - Left Foot Pedal / Signal 2

516195.03 - Right Foot Pedal / Signal 2

516195.04 - Right Foot Pedal / Signal 2

516196.03 - Right Foot Pedal / Signal 1

516196.04 - Right Foot Pedal / Signal 1

516196.07 - Right Foot Pedal / Signal 1

516196.16 - Right Foot Pedal / Signal 1

516196.18 - Right Foot Pedal / Signal 1

520652.05 - Bucket Curl / Solenoid Current

520652.06 - Bucket Curl / Solenoid Current

520652.16 - Bucket Curl / Solenoid Current

520653.05 - Bucket Dump / Solenoid Current

520653.06 - Bucket Dump / Solenoid Current

520653.16 - Bucket Dump / Solenoid Current

522377.03 - Boom Sensor / Signal 1

522377.04 - Boom Sensor / Signal 1

522377.12 - Boom Sensor / Signal 1

522377.13 - Boom Sensor / Signal 1

523378.03 - Boom Sensor / Signal 2

523378.04 - Boom Sensor / Signal 2

522436.03 - Bucket Sensor / Signal 1

522436.04 - Bucket Sensor / Signal 1

522436.12 - Bucket Sensor / Signal 1

522436.13 - Bucket Sensor / Signal 1

522437.03 - Bucket Sensor / Signal 2

522437.04 - Bucket Sensor / Signal 2

522447.05 - Right Pump / Fwd Sol Current

522447.06 - Right Pump / Fwd Sol Current

522447.16 - Right Pump / Fwd Sol Current

522448.05 - Right Pump / Rev Sol Current

522448.06 - Right Pump / Rev Sol Current

522448.16 - Right Pump / Rev Sol Current

522449.05 - Left Pump / Rev Sol Current

522449.06 - Left Pump / Rev Sol Current

522449.16 - Left Pump / Rev Sol Current

522450.05 - Left Pump / Fwd Sol Current

522450.06 - Left Pump / Fwd Sol Current

522450.16 - Left Pump / Fwd Sol Current

523217.03 - Hydraulic Valve / Power 3 to HCU

523217.04 - Hydraulic Valve / Power 3 to HCU

523218.03 - Propel Valve / Power 2 to HCU

523218.04 - Propel Valve / Power 2 to HCU

523219.03 - Hydraulic Valve / Power 1 to HCU

523219.04 - Hydraulic Valve / Power 1 to HCU

523411.05 - Boom Down / Solenoid Current

523411.06 - Boom Down / Solenoid Current

523411.16 - Boom Down / Solenoid Current

523414.05 - Boom Up / Solenoid Current

523414.06 - Boom Up / Solenoid Current

523414.16 - Boom Up / Solenoid Current

Group 40: Left Joystick Controller (JSL) Diagnostic Trouble Codes

Left Joystick Controller (JSL) Diagnostic Trouble Codes

002697.03 - Left Joystick / X-Axis

002697.04 - Left Joystick / X-Axis

002697.13 - Left Joystick / X-Axis

002697.14 - Left Joystick / X-Axis

002698.03 - Left Joystick / Y-Axis

002698.04 - Left Joystick / Y-Axis

002698.13 - Left Joystick / Y-Axis

002698.14 - Left Joystick / Y-Axis

Group 50: Right Joystick Controller (JSR) Diagnostic Trouble Codes

Right Joystick Controller (JSR) Diagnostic Trouble Codes

002660.03 - Right Joystick / X-Axis

002660.04 - Right Joystick / X-Axis

002660.13 - Right Joystick / X-Axis

002660.14 - Right Joystick / X-Axis

002661.03 - Right Joystick / Y-Axis

002661.04 - Right Joystick / Y-Axis

002661.13 - Right Joystick / Y-Axis

002661.14 - Right Joystick / Y-Axis

Group 60: Sealed Switch Module (SSM) Diagnostic Trouble Codes

Sealed Switch Module (SSM) Diagnostic Trouble Codes

0000629.12 - Controller Fault

002033.09 - VCU CAN Comm

002634.04 - Ignition Relay

002634.05 - Ignition Relay

523850.04 - SSM Button 15

523850.09 - SSM Button 15

523852.04 - SSM Button 14

523852.09 - SSM Button 14

523854.04 - SSM Button 13

523854.09 - SSM Button 13

523855.04 - SSM Button 12

523855.09 - SSM Button 12

523856.04 - SSM Button 11

523856.09 - SSM Button 11

523857.04 - SSM Button 10

523857.09 - SSM Button 10

523858.04 - SSM Button 9

523858.09 - SSM Button 9

523860.04 - SSM Button 8

523860.09 - SSM Button 8

523861.04 - SSM Button 7

523861.09 - SSM Button 7

523862.04 - SSM Button 6

523862.09 - SSM Button 6

523863.04 - SSM Button 5

523863.09 - SSM Button 5

523864.04 - SSM Button 4

523864.09 - SSM Button 4

523865.04 - SSM Button 3

523865.09 - SSM Button 3

523867.04 - SSM Button 2

523867.09 - SSM Button 2

523868.04 - SSM Button 1

523868.09 - SSM Button 1

Group 70: Vehicle Control Unit (VCU) Diagnostic Trouble Codes

Vehicle Control Unit (VCU) Diagnostic Trouble Codes

000158.03 - Battery Voltage Switched Power

000158.04 - Battery Voltage Switched Power

000168.03 - Unswitched Power / Input

000168.04 - Unswitched Power / Input

000977.05 - Fan Direction / Mode

000977.06 - Fan Direction / Mode

001071.05 - Fan Speed / Solenoid

001071.06 - Fan Speed / Solenoid

001508.00 - Hydraulic Oil / Temperature

001508.03 - Hydraulic Oil / Temperature

001508.04 - Hydraulic Oil / Temperature

001713.00 - Hydraulic Filter / Restr Switch

001713.03 - Hydraulic Filter / Restr Switch

003512.03 - 5 Volt Sensor / Supply 4

003512.04 - 5 Volt Sensor / Supply 4

003597.03 - 5 Volt Sensor / Supply 1

003597.04 - 5 Volt Sensor / Supply 1

003598.03 - 5 Volt Sensor / Supply 2

003598.04 - 5 Volt Sensor / Supply 2

003599.03 - 5 Volt Sensor - Supply 3

003599.04 - 5 Volt Sensor - Supply 3

004056.05 - 2-Speed Output

004056.06 - 2-Speed Output

516249.04 - Controller Power Supply

520194.13 - Machine Model ID / Wrong or Missing

520194.14 - Machine Model ID / Wrong or Missing

520849.03 - Right Joystick / Trigger Input

520849.04 - Right Joystick / Trigger Input

521466.05 - Fan Direction / Relief

521466.06 - Fan Direction / Relief

521806.05 - HST Bypass Solenoid

521806.06 - HST Bypass Solenoid

522820.05 - High Flow / Driver

522820.06 - High Flow / Driver

524084.00 - Hydrostat Oil / Temperature

524084.03 - Hydrostat Oil / Temperature

524084.04 - Hydrostat Oil / Temperature

524264.11 - Checksum Error

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

John Deere Engine

Engine Identification

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

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

Rear Engine Harness (W1) Component Location

Rear 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

Radio Harness (W8) Component Location

Radio Harness (W8) 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

Hydrostatic Control Valve Harness (W17) Component Location

Hydrostatic Control Valve Harness (W17) Wiring Diagram

High/Low Pressure Switch and Heater Valve Motor Harness (W18) Component Location

High/Low Pressure Switch and Heater Valve Motor Harness (W18) Wiring Diagram

Creep Mode Speed Switch Harness (W19) Component Location

Creep Mode Speed Switch Harness (W19) Wiring Diagram

Left Pedal Sensor Harness (W23) Component Location

Left Pedal Sensor Harness (W23) Wiring Diagram

Right Pedal Sensor Harness (W24) Component Location

Right Pedal Sensor Harness (W24) Wiring Diagram

Hydrostatic Oil Temperature Sensor Harness (W25) Component Location

Hydrostatic Oil Temperature Sensor Harness (W25) Wiring Diagram

License Plate Light Harness (W26) Component Location

License Plate Light Harness (W26) Wiring Diagram

Joystick Jumper Harness (W27) Component Location

Joystick Jumper Harness (W27) Wiring Diagram

Two-Speed Solenoid Harness (W28) Component Location

Two-Speed Solenoid Harness (W28) Wiring Diagram

Pump Pressure Bypass Harness (W35) Component Location

Pump Pressure Bypass Harness (W35) 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

Lighting Circuit Theory of Operation

Hydraulic System Control Circuit Theory of Operation

Hydrostatic System Control Circuit Theory of Operation

Hydraulic Fan Control Circuit Theory of Operation

Backup Alarm Circuit Theory of Operation

Quik-Tatch Circuit Theory of Operation—If Equipped

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)

Intermittent Diagnostic Trouble Code (DTC) Diagnostics

Electrical Component Checks

Electrical Component Specifications

Solenoid Test

Alternator Test

Controller Area Network (CAN) Circuit Test

Boom and Bucket Calibration

Auxiliary Hydraulics Calibration

Manual Tracking Adjustment Procedure

Hydrostatic System Calibration

Electrohydraulic (EH) Foot Pedal 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

Left Electrohydraulic (EH) Foot Pedal Remove and Install

Right Electrohydraulic (EH) Foot Pedal Remove and Install

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

Ride Control 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 20: Adjustments

Ride Control Accumulator Gas Charge Procedure—If Equipped

Group 25: Tests

JT05800 Digital Thermometer Installation

JT02156A Digital Pressure and Temperature Analyzer Kit Installation

Remote Start Box Installation

Hydraulic System Pressure Release

Pilot Control Accumulator Precharge Test

Port Lock Solenoid Valve and Port Lock Spool Test

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

Hydraulic Oil Cooler Bypass Valve Test

Auxiliary Coupler Manifold Leakage Test

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 Powered On One Side, Not The Other

Machine Will Not Shift Into Or Out Of High Speed

Mistracking

Park Brakes Do Not Hold

Park Brakes Do Not Release

Grinding Noise While Operating Machine

Group 25: Tests

Engine Speed Control for Testing

Multi-Function Valve 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—Single Speed

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 Skid Steer Loaders 326E (EH Controls) Operation and Test Service Manual (TM13090X19)