Complete Diagnostics and Test Service manual with Electrical Wiring Diagrams for John Deere 315SL Backhoe Loader, with all the workshop information to testand diagnose like professional mechanics.

John Deere 315SL Backhoe Loader workshop diagnosis & tests 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.

tm13303x19 - 315SL Backhoe Loader Technical Manual.pdf
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Covered Models:  315SL (PIN: 1T0315SL**F273920-)
Total Pages: 1,533 pages
File Format: PDF (bookmarked, Searchable, Printable, high quality)
Language: French English Spanish
John Deere - 315SL Backhoe - 1T0315SL__F273920-

MAIN CONTENTS
   Foreword
   Manual Identification-READ THIS FIRST!
   General Information
      Safety
   Diagnostics
      Engine Control Unit (ECU) Diagnostic Trouble Codes
      Standard Display Monitor (SDM) Diagnostic Trouble Codes
      Transmission Control Unit (TCU) Diagnostic Trouble Codes
      Vehicle Control Unit (VCU) Diagnostic Trouble Codes
      Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes
      Sealed Switch Module (SSM) Diagnostic Trouble Codes
      Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Adjustments
      Tests
   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
      Tests
   Hydraulic System
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Adjustments
      Tests
   Heating and Air Conditioning
      Theory of Operation
      System Diagrams
      Diagnostic Information
      Tests

tm13303x19 - 315SL Backhoe Loader

Table of Contents

Foreword

Manual Identification—READ THIS FIRST!

Section 9000: General Information

Group 01: Safety

Information for European Union Directives and Customs Union Technical Regulations Compliance

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

Exhaust Filter Ash Handling and Disposal

Prepare for Emergencies

Clean Debris from Machine

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Prevent Unintended Machine Movement—If Equipped With Pilot Controls

Avoid Work Site Hazards

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tipover

Operating or Traveling On Public Roads

Inspect and Maintain ROPS

Travel Safely

Prevent Acid Burns

Add and Operate Attachments Safely

Use Special Care When Operating

Park and Prepare for Service Safely

Service Cooling System Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Follow Tire Recommendations

Service Tires Safely

Clean Exhaust Filter Safely

Section 9001: Diagnostics

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

Engine Control Unit (ECU) Diagnostic Trouble Codes

000029.03 - Hand Throttle

000029.04 - Hand Throttle

000029.14 - Hand Throttle

000091.03 - Foot Throttle

000091.04 - Foot Throttle

000091.14 - Foot Throttle

000237.02 - Vehicle ID

000237.13 - Vehicle ID

000237.31 - Vehicle ID

000647.05 - Engine Fan Driver

000647.06 - Engine Fan Driver

001321.05 - Starter Relay

001321.06 - Starter Relay

001321.09 - Starter Relay

001321.16 - Starter Relay

001321.31 - Starter Relay

001639.01 - Fan Speed

001761.01 - DEF LEVEL

001761.18 - DEF LEVEL

002003.09 - No CAN From TCU

002071.09 - No CAN From VCU

003031.12 - DEF Temperature

003353.31 - Alternator Output

003516.01 - Diesel Exhaust Fluid Concentration Extremely Low

003516.07 - Diesel Exhaust Fluid Concentration Invalid

003516.09 - Diesel Exhaust Fluid Tank Header Communication Fault

003516.12 - Diesel Exhaust Fluid Concentration Sensor Fault

003517.12 - Diesel Exhaust Fluid Tank Level Sensor Fault

004366.05 - DEF Tank Heater Coolant Control Valve Circuit Has High Resistance

004366.06 - DEF Tank Heater Coolant Control Valve Circuit Has Low Resistance

004366.16 - DEF Tank Temperature Moderately High

004366.18 - DEF Tank Insufficient Heating Fault

005927.05 - Coolant Pump

005927.06 - Coolant Pump

005927.07 - Coolant Pump

524225.31 - Engine Start

Group 20: Standard Display Monitor (SDM) Diagnostic Trouble Codes

Standard Display Monitor (SDM) Diagnostic Trouble Codes

000096.03 - Fuel Level Sensor

000096.04 - Fuel Level Sensor

000168.03 - Battery Voltage

000237.02 - Vehicle ID

000237.13 - Vehicle ID

000237.31 - Vehicle ID

000628.12 - Programming

000629.12 - Controller Fault

000920.12 - Alarm Output

001196.11 - Security

002000.09 - No CAN from ECU

002003.09 - No CAN from TCU

002071.09 - No CAN from VCU

002072.09 - System Message

002251.09 - No CAN from MTG

003509.03 - Sensor Supply 1

003509.04 - Sensor Supply 1

524082.07 - Display Buttons

Group 30: Transmission Control Unit (TCU) Diagnostic Trouble Codes

Transmission Control Unit (TCU) Diagnostic Trouble Codes

000070.14 - Park Brake

000177.00 - Trans Oil Temp

000177.04 - Trans Oil Temp

000191.03 - Transmission Speed

000191.04 - Transmission Speed

000525.02 - Requested Gear

000525.03 - Requested Gear

000525.05 - Requested Gear

000629.12 - Controller Fault

000734.03 - Y1 Solenoid

000734.04 - Y1 Solenoid

000734.05 - Y1 Solenoid

000734.06 - Y1 Solenoid

000735.03 - Y2 Solenoid

000735.04 - Y2 Solenoid

000735.05 - Y2 Solenoid

000735.06 - Y2 Solenoid

000736.03 - Y3 Solenoid

000736.05 - Y3 Solenoid

000736.06 - Y3 Solenoid

000737.03 - Y4 Solenoid

000737.05 - Y4 Solenoid

000737.06 - Y4 Solenoid

000738.03 - Y5 Solenoid

000738.05 - Y5 Solenoid

000738.06 - Y5 Solenoid

000739.03 - Y6 Solenoid

000739.05 - Y6 Solenoid

000739.06 - Y6 Solenoid

000746.03 - Differential Lock

000746.05 - Differential Lock

000746.06 - Differential Lock

000880.03 - Brake Lights

000880.05 - Brake Lights

000880.06 - Brake Lights

002000.09 - System Message

002023.09 - System Message

002071.09 - System Message

002072.09 - System Message

002392.03 - Reverse Alarm

002392.06 - Reverse Alarm

002612.03 - MFWD Solenoid

002612.05 - MFWD Solenoid

002612.06 - MFWD Solenoid

522379.03 - Park Brake

522379.04 - Park Brake

522379.05 - Park Brake

522379.06 - Park Brake

522411.02 - TCL Selector

522411.03 - TCL Selector

522411.05 - TCL Selector

524172.03 - Clutch Disconnect

Group 40: Vehicle Control Unit (VCU) Diagnostic Trouble Codes

Vehicle Control Unit (VCU) Diagnostic Trouble Codes

000168.03 - Battery Voltage

000237.02 - Vehicle ID

000237.13 - Vehicle ID

000237.31 - Vehicle ID

000628.12 - Programming

000629.12 - Control Unit

001321.16 - Starter Relay

001713.00 - Hyd Oil Restriction

002142.09 - System Message

002228.12 - EH Watchdog

002347.03 - Front Light Switch

002347.04 - Front Light Switch

002350.06 - Drive Lights

002354.06 - Front Work Lights

002356.06 - Front Work Lights

002360.06 - Rear Work Lights

002362.06 - Rear Work Lights

002366.06 - Side Work Lights

002368.03 - Left Flasher

002368.05 - Left Flasher

002368.06 - Left Flasher

002370.03 - Right Flasher

002370.05 - Right Flasher

002370.06 - Right Flasher

002378.03 - Marker Light

002378.05 - Marker Light

002378.06 - Marker Light

002863.02 - Wiper Switch

002876.04 - Turn Signal Switch

003509.03 - Sensor Supply 1

003509.04 - Sensor Supply 1

003997.03 - Accessory Relay

003997.05 - Accessory Relay

003997.06 - Accessory Relay

004089.03 - Pump Out Pressure

004089.04 - Pump Out Pressure

517120.03 - Loader Boom Rod Press

517120.04 - Loader Boom Rod Press

520416.05 - Valve Power

520546.07 - Pilot Enable Switch

520688.03 - Pilot Enable Driver

520688.05 - Pilot Enable Driver

520688.06 - Pilot Enable Driver

520696.03 - Pattern Select Driver

520696.05 - Pattern Select Driver

520696.06 - Pattern Select Driver

520713.03 - Seat Position

520713.04 - Seat Position

520713.13 - Seat Position

522312.03 - Front Washer

522312.05 - Front Washer

522312.06 - Front Washer

522426.03 - Rear Wiper Park

522426.04 - Rear Wiper Park

522427.03 - Front Wiper Park

522427.04 - Front Wiper Park

522433.03 - Rear Wiper

522433.05 - Rear Wiper

522433.06 - Rear Wiper

522434.03 - Front Wiper Low

522434.05 - Front Wiper Low

522434.06 - Front Wiper Low

522435.03 - Front Wiper High

522435.05 - Front Wiper High

522435.06 - Front Wiper High

523307.03 - Crank Signal

523307.04 - Crank Signal

523911.03 - Pump Control

523911.04 - Pump Control

523911.05 - Pump Control

523911.06 - Pump Control

523948.03 - Ride Control

523948.05 - Ride Control

523948.06 - Ride Control

Group 50: Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes

Auxiliary Valve Controller (AVC) Diagnostic Trouble Codes

000168.03 - Battery Voltage

000237.02 - Vehicle ID

000237.13 - Vehicle ID

000237.31 - Vehicle ID

000629.12 - Control Unit

520425.07 - System Message

520426.07 - System Message

520542.03 - System Message

520543.04 - System Message

524010.03 - Selective Flow

524010.04 - Selective Flow

524010.05 - Selective Flow

524010.06 - Selective Flow

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

Sealed Switch Module (SSM) Diagnostic Trouble Codes

002033.09 - System Message

002634.04 - Ignition Relay Circuit Fault

002634.05 - Ignition Relay Circuit Fault

521274.09 - System Message

523850.04 - SSM Button Stuck

523850.09 - System Message

523852.04 - SSM Button Stuck

523852.09 - System Message

523854.04 - SSM Button Stuck

523854.09 - System Message

523855.04 - SSM Button Stuck

523855.09 - System Message

523856.04 - SSM Button Stuck

523856.09 - System Message

523857.04 - SSM Button Stuck

523857.09 - System Message

523858.04 - SSM Button Stuck

523858.09 - System Message

523860.04 - SSM Button Stuck

523860.09 - System Message

523861.04 - SSM Button Stuck

523861.09 - System Message

523862.04 - SSM Button Stuck

523862.09 - System Message

523863.04 - SSM Button Stuck

523863.09 - System Message

523864.04 - SSM Button Stuck

523864.09 - System Message

523865.04 - SSM Button Stuck

523865.09 - System Message

523867.04 - SSM Button Stuck

523867.09 - System Message

523868.04 - SSM Button Stuck

523868.09 - System Message

Group 70: Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes

Vehicle Control Unit 2 (VC2) Diagnostic Trouble Codes

002664.03 - Ldr Aux Roller

002664.04 - Ldr Aux Roller

002664.07 - Ldr Aux Roller

003509.03 - SENSOR SUPPLY 1

003509.04 - SENSOR SUPPLY 1

520669.00 - Loader Aux Pressure

520669.01 - Loader Aux Pressure

520669.03 - Loader Aux Sol A

520669.04 - Loader Aux Sol A

520669.05 - Loader Aux Sol A

520669.06 - Loader Aux Sol A

520687.03 - Backhoe Coupler

520687.05 - Backhoe Coupler

520687.06 - Backhoe Coupler

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout Procedure

Section 9010: Engine

Group 05: Theory of Operation

John Deere Engine Operation

Engine Cooling System Operation

Cold Start Aid System Operation

Group 10: System Diagrams

Engine Intake and Exhaust Component Location

Engine Fuel System Component Location

Engine Cooling System Component Location

Group 15: Diagnostic Information

John Deere Engine Operation

Engine Identification

Engine Cooling Fan Continuously Runs at Engine Speed

Group 20: Adjustments

John Deere Engine Operation

Service Filter Cleaning

Group 25: Tests

John Deere Engine Operation

Fluid Sampling Procedure

Air in Fuel Test

Engine Speed Check

Engine Thermostat Test

Thermal Bypass Valve Test

Diesel Exhaust Fluid (DEF) Cooling System Test

Section 9015: Electrical System

Group 05: Theory of Operation

Controller Area Network (CAN) Circuit Theory of Operation

Local Interconnect Network (LIN) Circuit Theory of Operation

Engine Control Unit (ECU) Circuit Theory of Operation

Vehicle Control Unit (VCU) Circuit Theory of Operation

Standard Display Monitor (SDM) Circuit Theory of Operation

Start and Charge Circuit Theory of Operation

Hydraulic System Circuit Theory of Operation

Transmission Control Circuit Theory of Operation

Exhaust Aftertreatment Circuit Theory of Operation

Auxiliary Valve Controller (AVC) Circuit Theory of Operation

Horn, Lights, and Beacon Circuit Theory of Operation

Wiper and Washer Circuit Theory of Operation

JDLink™ Circuit Theory of Operation

Group 10: System Diagrams

Electrical Diagram Information

Electrical Schematic Symbols

System Functional Schematic and Section Legend

System Functional Schematic, Wiring Diagram, and Component Location Legend

Fuse and Relay Location and Specifications

Horn and Coolant Level Harness (W7) Wiring Diagram

Horn and Coolant Level Harness (W7) Component Location

Air Intake Heater Harness (W8) Wiring Diagram

Air Intake Heater Harness (W8) Component Location

Engine Harness (W10) Wiring Diagram

Engine Harness (W10) Component Location

Engine Interface Harness (W11) Wiring Diagram

Engine Interface Harness (W11) Component Location

Transmission Harness (W13) Wiring Diagram

Transmission Harness (W13) Component Location

Cab Harness (W14) Wiring Diagram

Cab Harness (W14) Component Location

Roof Harness (W17) Wiring Diagram

Roof Harness (W17) Component Location

Heater and Air Conditioner Harness (W19) Wiring Diagram

Heater and Air Conditioner Harness (W19) Component Location

Auxiliary Valve Control Harness (W23) Wiring Diagram

Auxiliary Valve Control Harness (W23) Component Location

Ride Control Solenoid Harness (W27) Wiring Diagram

Ride Control Solenoid Harness (W27) Component Location

Selective Flow Solenoid Harness (W28) Wiring Diagram

Selective Flow Solenoid Harness (W28) Component Location

Loader Auxiliary Solenoid Harness (W29) Wiring Diagram

Loader Auxiliary Solenoid Harness (W29) Component Location

Pilot Enable Pattern Select Valve Harness (W30) Wiring Diagram

Pilot Enable Pattern Select Valve Harness (W30) Component Location

Pilot Enable Switch Harness (W31) Wiring Diagram

Pilot Enable Switch Harness (W31) Component Location

Return-to-Dig Harness (W32) Wiring Diagram

Return-to-Dig Harness (W32) Component Location

Rear Frame Harness (W38) Wiring Diagram

Rear Frame Harness (W38) Component Location

Air Conditioner Compressor Clutch Harness (W39) Wiring Diagram

Air Conditioner Compressor Clutch Harness (W39) Component Location

Pilot Control and Selective Flow Harness (W40) Wiring Diagram

Pilot Control and Selective Flow Harness (W40) Component Location

Auxiliary Hydraulic Foot Switch Harness (W47) Wiring Diagram—If Equipped

Auxiliary Hydraulic Foot Switch Harness (W47) Component Location—If Equipped

Variable Speed Fan Harness (W48) Wiring Diagram

Variable Speed Fan Harness (W48) Component Location

Diesel Exhaust Fluid (DEF) Harness (W49) Wiring Diagram

Diesel Exhaust Fluid (DEF) Harness (W49) Component Location

Aftertreatment Harness (W50) Wiring Diagram

Aftertreatment Harness (W50) Component Location

Radio Harnesses (W51, W52, W53, and W54) Wiring Diagrams

Radio Harnesses (W51, W52, W53, W54, and W55) Component Location

Blower Mode Door Motor Harness (W56) Wiring Diagram

Blower Mode Door Motor Harness (W56) Component Location

Fuel Injector Harness (W57) Wiring Diagram

Fuel Injector Harness (W57) Component Location

Coolant Control Valve (CCV) Harness (W59) Wiring Diagram (S.N. 303524— )

Coolant Control Valve (CCV) Harness (W59) Component Location (S.N. 303524— )

Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram

Modular Telematics Gateway (MTG) Harness (W6002) Component Location

Satellite (SAT) Harness (W6003) Wiring Diagram

Satellite (SAT) Harness (W6003) Component Location

Group 15: Diagnostic Information

Electrical Component Specifications

Service ADVISOR™ Diagnostic Application

Service ADVISOR™ Connection Procedure

Reading Diagnostic Trouble Codes (DTCs) With Service ADVISOR™ Diagnostic Application

Intermittent Diagnostic Trouble Code (DTC) Diagnostics

Using Service ADVISOR™ Remote

JDLink™ Connection Procedure

Group 16: Monitor Operation

Service Mode

Operation—Exhaust Filter Service Cleaning

Operation—Software Delivery

Diagnostics—Clear Stored Diagnostic Trouble Codes (DTCs)

Diagnostics—Engine

Diagnostics—Electrical, Lights

Diagnostics—Transmission

Diagnostics—Hydraulics

Diagnostics—Buttons

Diagnostics—Service Advisor

Diagnostics—Sensors

Setup—Monitor

Setup—Auto-Idle

Setup—Auto-Shutdown

Setup—Calibrations

Setup—Ignition Shutdown

Setup—High Altitude Mode

Setup—Transmission

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

CAN Circuit Test

Controller Area Network (CAN) Resistor Test

Auxiliary Selective Flow Control Circuit Test

Throttle Position Sensor Test

Alternator Test

Relay Test

Wire Harness Test

Sensor Circuit Test

Engine Speed Control Pedal Test

Section 9020: Power Train

Group 05: Theory of Operation

Power Train Overview

Transmission Pump Operation

Torque Converter Operation

Clutch Modulation Operation

Clutch Pack Operation

Clutch Engagement and Solenoid Activation

Transmission Gear Flow

Differential Operation

Differential Lock Operation

Mechanical Front Wheel Drive (MFWD) Operation—If Equipped

Mechanical Front Wheel Drive (MFWD) Differential Operation—If Equipped

Park Brake Operation

Power Boost Service Brake Valve Operation

Service Brake Operation

Transmission Filter Operation

Thermal Bypass Valve Operation

Group 10: System Diagrams

Power Train Component Location

Power Train Schematic—First Forward

Power Train Schematic—Neutral

Group 15: Diagnostic Information

Diagnose Transmission Malfunctions

Transmission Overheats

Transmission Slippage

Excessive Power Train Noise

No Differential Lock Operation

Differential Lock Slips or Chatters When Engaged

Differential Lock Will Not Release

Machine Lacks Power or Moves Slow

No Power to Mechanical Front Wheel Drive (MFWD)

No Power to One Wheel of Mechanical Front Wheel Drive (MFWD)

Park Brake Will Not Hold

Park Brake Will Not Release

Poor Service Brakes

Brake Pedal Hard to Push

Service Brakes Chatter or Noisy

Service Brakes Will Not Release

Rear Axle Overfilled With Oil

Group 20: Adjustments

Mechanical Park Brake Release—Towing

Service Brake Bleed Procedure

Service Brake Pedal Adjustment

Steering Angle Check and Adjust

Toe-In Check and Adjust

Tracking Angle Check and Adjust

Group 25: Tests

Transmission Overall Test Connections, Ports, and Locations

Transmission Oil Warm-Up Procedure

Transmission Pump Flow Test

Transmission System Pressure Test

Service Brake Boost Pressure Test

Transmission Oil Sampling Procedure—If Equipped

Torque Converter Stall Speed Test

Torque Converter Inlet Pressure Test

Clutch Pressure Test

Solenoid Circuit Leakage Test

Differential Lock Pressure Test

Mechanical Front Wheel Drive (MFWD) Pressure Test

Park Brake Release Pressure Test

Power Boost Service Brake Valve Leakage Test

Cooler In and Cooler Out Pressure Test

Section 9025: Hydraulic System

Group 05: Theory of Operation

Hydraulic System Operation

Hydraulic Pump Operation

Hydraulic Filter Operation

System and Circuit Relief Valve Operation

Backhoe Control Valve Operation

Sideshift and Boom Lock (SBL) Valve Operation

Pilot Control Valve Operation

Pilot Enable and Pattern Select Valve Operation—If Equipped

Loader and Stabilizer Control Valve Operation

Loader Auxiliary Control Operation

Ride Control Operation—If Equipped

Steering Valve Operation

Group 10: System Diagrams

Hydraulic System Schematic

Hydraulic System Component Location

Hydraulic Main System Line Identification

Hydraulic Backhoe System Line Identification

Hydraulic Backhoe Pilot Controls System Line Identification

Hydraulic Loader System Line Identification

Hydraulic Ride Control System Line Identification

Hydraulic Brake and Steering System Line Identification

Hydraulic Sideshift and Boom Lock (SBL) System Line Identification

Group 15: Diagnostic Information

Low Hydraulic Power

Slow Hydraulic Functions

Hydraulic Function Makes "Chattering" Noise

Hydraulic Oil Overheats

Hydraulic Pump Leaking

Excessive Pump Noise

Foaming Oil

Functions Drift

Control Valve Sticks or Works Hard

No Stabilizer Hydraulics

No Loader or Steering Hydraulics

No Backhoe Power in One Function

Backhoe Operates Slowly in One Function

Engine Pulls Down Excessively During Backhoe Operation

No Loader Hydraulics

No Loader Power in One Function

Low Loader Hydraulic Power

Loader Operates Slowly in One Function

Engine Pulls Down Excessively During Loader Operation

Erratic “Spongy” Steering

Hard Steering, Loader Hydraulics OK

No Response When Steering Wheel is Turned, Loader Hydraulics OK

Slow Steering Hydraulics

Excessive Steering Wheel Turns to Steer Machine

Excessive Vibration of the Steering Wheel

Machine Turns in Opposite Direction

Machine Turns When Steering Valve is in Neutral

Poor Centering of Steering Wheel (Wheels Continue to Move After Steering Wheel is Stopped)

Steering Valve Does Not Return to Neutral

Steering Wheel Kickback

Steering Wheel "Locks" Up

Steering Wheel or Front Wheels Slowly Turn by Themselves When Using Backhoe or Loader

Steering Wheel Turns Freely With No Resistance or Action On Steered Wheels

Steering Wheel Turns With Slight Resistance and No Action On Steered Wheels

Steering Wheel Turns Apply Rear Axle Service Brakes

Wander—Machine Will Not Stay in a Straight Line

Group 20: Adjustments

Backhoe Control Lever Adjustment—Two-Lever

Backhoe Control Lever Adjustment—Four-Lever (If Equipped)

Auxiliary Selective Flow Control Valve Adjustment—If Equipped

Pilot Control Pressure Adjustment

Pilot Enable and Pattern Select (PEPS) Valve Accumulator Discharge Procedure

Loader Bucket Self-Leveling Linkage and Return-To-Dig Switch Adjustment

Ride Control Accumulator Charge Procedure

Ride Control Accumulator Charge Check Procedure

Ride Control Accumulator Hydraulic Pressure Release Procedure

Group 25: Tests

JT02156A Digital Pressure and Temperature Analyzer Kit Installation

Hydraulic Oil Warm-Up Procedure

Hydraulic Circuit Pressure Release

Hydraulic System Pressure Test

Hydraulic Pump Flow Test

Hydraulic Pump Unloading Relief Valve Pressure Test

Pilot Control Pressure Test

Pilot Control Accumulator Charge Pressure Test

Hydraulic Oil Cooler Restriction Test

Circuit Relief Valve Test—With Remote Pump

Function Drift Test

Loader and Stabilizer Control Valve Lockout Leakage Test

Steering System Leakage Test

Hydraulic Cylinder Leakage Test

Steering Cylinder Leakage Test

Section 9031: Heating and Air Conditioning

Group 05: Theory of Operation

Air Conditioning System Cycle of Operation

Group 10: System Diagrams

Heating and Air Conditioning System Component Location

Group 15: Diagnostic Information

Air Conditioning System Does Not Operate

Air Conditioning System Does Not Cool Interior of Cab

Air Conditioning System Runs Constantly, Too Cold

Heating System Does Not Operate

Heating System Does Not Warm Interior of Cab

Interior Windows Continue to Fog

Group 25: Tests

R134a Refrigerant Cautions and Proper Handling

R134a Oil Charge Capacity

R134a Refrigerant Charge Capacity

Heater and Air Conditioner Operational Checks

Air Conditioner Compressor Clutch Test

R134a Refrigerant Leak Test

R134a Refrigerant Hoses and Tubing Inspection

Air Conditioner High/Low-Pressure Switch Test

Air Conditioner Freeze Control Switch Test

Air Conditioning System Test

Operating Pressure Diagnostic Chart

John Deere 315SL Backhoe Loader Operation and Test Service Manual (TM13303X19)