John Deere Skid Steer Loaders 312GR, 314G Operation and Test Service Manual (TM13847X19)

TM13847X19 - John Deere Skid Steer Loaders 312GR, 314G Technical Manual (Operation and Test).PDF

Complete Diagnostics and Test technical manual with Electrical Wiring Diagrams for John Deere Skid Steer Loaders 312GR, 314G, with all the shop information to maintain, diagnostic, repair, service like professional mechanics.

John Deere Skid Steer Loaders 312GR, 314G workshop Operation 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.

Total Pages: 957 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English

  314G (PIN: 1T0312G***J288093-)
  312GR (PIN:1T0314G***J288093-)
 
MAIN SECTIONS
Foreword
   Manual Identification-READ THIS FIRST!
   General Information
      Safety
   Diagnostics
      Engine Control Unit (ECU) Diagnostic Trouble Codes
      Engagement and Monitor Unit (EMU) 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
      System Diagrams
      Diagnostic Information
   Electrical System
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Monitor Operation
      Diagnostic Test Box
      Tests
   Power Train
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Adjustments
   Hydraulic System
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Tests
   Hydrostatic System
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Tests
   Heating and Air Conditioning
      System Diagrams
      Diagnostic Information
      Tests
   Dealer Fabricated Tools

tm13847x19 - 312GR and 314G Skid Steer Loader

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

Avoid Static Electricity Risk When Refueling

Prevent Fires

In Case of Machine Fire

Prevent Battery Explosions

Handle Chemical Products Safely

Handle Starting Fluid Safely

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Exhaust Filter Ash Handling and Disposal

Prepare for Emergencies

Clean Debris from Machine

Add Cab Guarding for Special Uses

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

Travel Safely

Prevent Acid Burns

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—If Equipped

Clean Exhaust Filter Safely

Section 9001: Diagnostics

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

Engine Control Unit (ECU) Diagnostic Trouble Codes

000028.00 - Service Throttle Very High

000028.01 - Service Throttle Very Low

000028.03 - Service Throttle Circuit Fault

000028.04 - Service Throttle Circuit Fault

000029.03 - Foot Throttle Circuit Fault

000029.04 - Foot Throttle Circuit Fault

000091.03 - Hand Throttle Circuit Fault

000091.04 - Hand Throttle Circuit Fault

000167.01 - System Voltage Very Low

000167.05 - System Voltage Very Low

000237.13 - Vehicle ID Calibration

000237.31 - Vehicle ID Fault

001485.02 - Main Relay Invalid

001485.07 - Main Relay Fault

003695.14 - Exhaust Filter Cleaning Inhibited By Operator Interface

522243.05 - Start Aid Circuit Fault

522243.06 - Start Aid Circuit Fault

522590.12 - Sensor Supply 1 Fault

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

522618.09 - ECU Communication Fault

522619.09 - ECU Communication Fault

522623.07 - Foot Throttle Fault

522624.07 - Foot Throttle Fault

522744.04 - ECU Circuit Fault

522994.04 - ECU Circuit Fault

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

Engagement and Monitor Unit (EMU) Diagnostic Trouble Codes

000070.02 - Park Brake Switch Invalid

000070.04 - Park Brake Switch Circuit Fault

000096.03 - Fuel Level Circuit Fault

000096.04 - Fuel Level Circuit Fault

000158.00 - System Voltage Very High

000158.01 - System Voltage Very Low

000162.04 - 2-Speed Switch Circuit Fault

000628.12 - Programming Fault

000920.05 - Alarm Output Circuit Fault

000920.06 - Alarm Output Circuit Fault

001196.11 - Antitheft Fault

001504.04 - Seat Switch Circuit Fault

002000.09 - ECU Communication Fault

002142.09 - SSM Communication Fault

002228.09 - HCU Communication Fault

002251.09 - SAR Communication Fault

003413.04 - Door Switch Circuit Fault

003597.03 - Sensor Supply 1 Circuit Fault

003597.04 - Sensor Supply 1 Circuit Fault

004056.05 - 2-Speed Output Circuit Fault

004056.06 - 2-Speed Output Circuit Fault

520714.05 - Self Level Out Circuit Fault

520714.06 - Self Level Out Circuit Fault

521050.04 - Aux Flow Switch Circuit Fault

521197.04 - Courtesy Light Sw Circuit Fault

522379.05 - Park Brake Sol Circuit Fault

522379.06 - Park Brake Sol Circuit Fault

522398.02 - Park Brake Switch Invalid

522398.04 - Park Brake Switch Circuit Fault

522438.04 - Self Level Switch Circuit Fault

522438.07 - Self Level Switch Mechanical Fault

522828.03 - Creep Mode Switch Circuit Fault

522828.04 - Creep Mode Switch Circuit Fault

522828.07 - Creep Mode Switch Fault

522859.04 - Lap Bar Switch Circuit Fault

523217.06 - Hyd Valve Power 3 Circuit Fault

523218.06 - Hst Valve Power Circuit Fault

523219.06 - Hyd Valve Power 1 Circuit Fault

523693.03 - Aux Hydraulic In 1 Circuit Fault

523693.04 - Aux Hydraulic In 1 Circuit Fault

523694.03 - Aux Hydraulic In 2 Circuit Fault

523694.04 - Aux Hydraulic In 2 Circuit Fault

523694.12 - Aux Hydraulic In 2 Fault

523935.05 - Aux Hyd Extend Sol Circuit Fault

523935.06 - Aux Hyd Extend Sol Circuit Fault

523941.05 - Aux Hyd Retract Sol Circuit Fault

523941.06 - Aux Hyd Retract Sol Circuit Fault

523948.05 - Ride Control Sol 1 Circuit Fault

523948.06 - Ride Control Sol 1 Circuit Fault

523949.05 - Ride Control Sol 2 Circuit Fault

523949.06 - Ride Control Sol 2 Circuit Fault

524225.04 - Remote Start In Circuit Fault

524264.11 - Checksum Fault

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

Sealed Switch Module (SSM) Diagnostic Trouble Codes

000629.12 - Control Unit Fault

002033.09 - VCU Communication Fault

002634.04 - Ignition Relay Circuit Fault

002634.05 - Ignition Relay Circuit Fault

003997.04 - Wake Up Output Circuit Fault

003997.05 - Wake Up Output Circuit Fault

523850.04 - SSM Button 15 Circuit Fault

523850.09 - SSM Button 15 Communication Fault

523852.04 - SSM Button 14 Circuit Fault

523852.09 - SSM Button 14 Communication Fault

523854.04 - SSM Button 13 Circuit Fault

523854.09 - SSM Button 13 Communication Fault

523855.04 - SSM Button 12 Circuit Fault

523855.09 - SSM Button 12 Communication Fault

523856.04 - SSM Button 11 Circuit Fault

523856.09 - SSM Button 11 Communication Fault

523857.04 - SSM Button 10 Circuit Fault

523857.09 - SSM Button 10 Communication Fault

523858.04 - SSM Button 9 Circuit Fault

523858.09 - SSM Button 9 Communication Fault

523860.04 - SSM Button 8 Circuit Fault

523860.09 - SSM Button 8 Communication Fault

523861.04 - SSM Button 7 Circuit Fault

523861.09 - SSM Button 7 Communication Fault

523862.04 - SSM Button 6 Circuit Fault

523862.09 - SSM Button 6 Communication Fault

523863.04 - SSM Button 5 Circuit Fault

523863.09 - SSM Button 5 Communication Fault

523864.04 - SSM Button 4 Circuit Fault

523864.09 - SSM Button 4 Communication Fault

523865.04 - SSM Button 3 Circuit Fault

523865.09 - SSM Button 3 Communication Fault

523867.04 - SSM Button 2 Circuit Fault

523867.09 - SSM Button 2 Communication Fault

523868.04 - SSM Button 1 Circuit Fault

523868.09 - SSM Button 1 Communication Fault

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

Vehicle Control Unit (VCU) Diagnostic Trouble Codes

000029.03 - Foot Throttle Circuit Fault

000029.04 - Foot Throttle Circuit Fault

000100.01 - Oil Pressure Very Low

000100.03 - Oil Pressure Very Low

000158.03 - System Voltage Circuit Fault

000158.04 - System Voltage Circuit Fault

000168.03 - Battery Voltage Circuit Fault

000168.04 - Battery Voltage Circuit Fault

000628.12 - Programming Fault

001508.00 - Hydraulic Oil Temp Very High

001508.03 - Hydraulic Oil Temp Circuit Fault

001508.04 - Hydraulic Oil Temp Circuit Fault

001713.00 - Hydraulic Filter Switch Very High

001713.03 - Hydraulic Filter Switch Circuit Fault

003512.03 - Sensor Supply 4 Circuit Fault

003512.04 - Sensor Supply 4 Circuit Fault

003599.03 - Sensor Supply 3 Circuit Fault

003599.04 - Sensor Supply 3 Circuit Fault

004056.05 - 2-Speed Output Circuit Fault

004056.06 - 2-Speed Output Circuit Fault

516249.04 - Sensor Supply 1 Circuit Fault

520194.13 - Vehicle ID Calibration

520194.14 - Vehicle ID Fault

520714.05 - Self Level Out Circuit Fault

520714.06 - Self Level Out Circuit Fault

520849.03 - Right JS Trigger Circuit Fault

520849.04 - Right JS Trigger Circuit Fault

522323.00 - Eng Air Filter Restr Very High

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

Exhaust Aftertreatment

Cold Start Operation

Group 10: System Diagrams

John Deere Engine

Engine Cooling System Component Location

Engine Fuel System Component Location

Engine Intake and Exhaust Component Location

Group 15: Diagnostic Information

John Deere Engine

Engine Hard to Start or Does Not Start When Cold

Section 9015: Electrical System

Group 05: Theory of Operation

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

Backup Alarm Circuit Theory of Operation

Quik-Tatch™ Circuit Theory of Operation—If Equipped

Hydrostatic System Control Circuit Theory of Operation

Group 10: System Diagrams

Electrical Diagram Information

Electrical Schematic Symbols

Fuse and Relay Specifications

System Functional Schematic, Component Location, and Wiring Diagram 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

Reverse Switch Harness (W6) Component Location

Reverse Switch Harness (W6) Wiring Diagram

Radio Harness (W8) Component Location

Radio Harness (W8) Wiring Diagram

Beacon Harness (W9) Component Location

Beacon Harness (W9) 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 Harness (W16) Component Location

Heater Harness (W16) 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

Engine Interface Harness (W20) Component Location

Engine Interface Harness (W20) Wiring Diagram

Engine Harness (W21) Component Location

Engine Harness (W21) Wiring Diagram

Engine Fuel System Harness (W22) Component Location

Engine Fuel System Harness (W22) Wiring Diagram

Group 15: Diagnostic Information

Service ADVISOR™ Connection Procedure

Reading Diagnostic Trouble Codes (DTCs)

Intermittent Diagnostic Trouble Code (DTC) Diagnostics

Group 16: Monitor Operation

Service Mode

Exhaust Filter Service Cleaning

Exhaust Filter Set Auto Clean

Codes

Diagnostics—Switches

Diagnostics—Sensors

Diagnostics—Speeds

Diagnostics—EMU Outputs

Diagnostics—ECU Outputs

Diagnostics—EMU Power

Diagnostics—ECU Power

Diagnostics—Controller Info

Antitheft—Master Code

Anti-Theft Security System Operation—If Equipped

Anti-Theft Security System Configuration—If Equipped

Anti-Theft Security System Enable—If Equipped

Group 17: Diagnostic Test Box

Setup and Functional Test

Two Wire Sensor Circuit Check—Out of Range High

Two Wire Sensor Circuit Check—Out of Range Low

Three Wire Sensor Circuit Check—Out of Range High

Three Wire Sensor Circuit Check—Out of Range Low

Group 25: Tests

Electrical Component Checks

Electrical Component Specifications

Solenoid Test

Alternator Test

Controller Area Network (CAN) Circuit Test

Section 9020: Power Train

Group 05: Theory of Operation

Power Train System Operation

Group 10: System Diagrams

Power Train Component Location

Group 15: Diagnostic Information

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 20: Adjustments

Drive Chain Tension Check and Adjustment

Section 9025: Hydraulic System

Group 05: Theory of Operation

Hydraulic System Operation

Hydraulic Oil Filter Manifold Operation

Self Leveling Operation—If Equipped

Hydraulic Pump Operation

Hydraulic Control Valve Operation

Counterbalance Valve Operation

Group 10: System Diagrams

Hydraulic System Schematic

Hydraulic System Component Location

Group 15: Diagnostic Information

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

Pedals Will Not Move

Hydraulic Oil Overheats

Group 25: Tests

JT05800 Digital Thermometer Installation

JT02156A Digital Pressure and Temperature Analyzer Kit Installation

Remote Start Box Installation

Hydraulic System Pressure Release

Port Lock Solenoid Valve and Port Lock Spool Test

Boom and Bucket Spool Lock Solenoid Test

Hydraulic System Relief Valve Test

Charge Pressure Relief Valve Test

Circuit Relief Valve Test

Function Drift Test

Hydraulic Cylinder Leakage Test

Hydraulic Pump Flow Test

Auxiliary Coupler Manifold Leakage Test—If Equipped

Section 9026: Hydrostatic System

Group 05: Theory of Operation

Hydrostatic System Operation

Hydrostatic Pump Operation

Hydrostatic Motor Operation—Single Speed

Park Brake System Operation

Steering Control Operation

Group 10: System Diagrams

Hydrostatic System Schematic

Hydrostatic System Component Location

Group 15: Diagnostic Information

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 Creeps With Steering Levers In Neutral

Hydrostatic System Noise While In Neutral

Steering Levers Hard To Move

Steering Levers Feel Loose Or “Sloppy”

Machine Tracks To One Side With Steering Levers In Full Forward Or Reverse Position

Steering Levers Pulse Or Vibrate Excessively

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

Centering Plate Adjustment

Steering Lever Adjustment—Centering

Tracking Adjustment

Hydraulic Control Handle Adjustment—Hands Only Machine

Wheel Speed Test

Park Brake Release Pressure Test

Hydrostatic Motor Case Drain Test—Single Speed

Section 9031: Heating and Air Conditioning

Group 10: System Diagrams

Heating System Component Location

Group 15: Diagnostic Information

Heating System Does Not Operate

Heating System Does Not Warm Interior of Cab

Interior Windows Continue to Fog

Group 25: Tests

Heater Operational Checks

Section 9900: Dealer Fabricated Tools

Group 99: Dealer Fabricated Tools

DFT1325 Solenoid Power Harness