John Deere 20A Nursery and Green House Specialty Tractors Service Technical Manual (TM103219)

Complete Diagnosis Operation Test Repair Service Manual with electrical wiring diagrams for John Deere 20A Nursery and Green House Specialty Tractors, with all the service information to maintain, diagnose, repair, and rebuild like professional mechanics.

John Deere 20A Nursery and Green House Specialty Tractor Workshop Diagnostics and Repair 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.

tm103219 - 20A Nursery and Green House Tractors Technical Manual.pdf

Total Pages: 974 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English

MAIN SECTIONS
  Foreword
   General Information
      Safety
      General Specifications
      Fuel and Lubricants
      Serial Number Location
      Features and Accessories
   Engine Repair
      Engine
      Cylinder Head and Valves
      Cyl. Block, Liners, Pistons and Rods
      Crankshaft, Main Bearings and Flywheel
      Camshaft and Timing Gear Train
      Lubrication System
   Fuel and Air Repair
      Fuel System
      Air Intake and Exhaust System
      Speed Control Linkage
   Electrical Repair
      Battery, Starter and Alternator
      Electrical System Components
      Wiring Harness
   Power Train Repair
      Clutch Housing
      Clutch Assembly
      Transmission
      Central Pivot
      Rear PTO Drive Shaft
      Differential
      Final Drives
   Steering and Brake Repair
      Steering Repair
      Brake Repair
   Hydraulic Repair
      Hydraulic Pump and Filter
      Rockshaft
   Miscellaneous Repair
      Wheels
      3-Point Hitch
   Operator Station Repair
      Seat and Support
      ROPS
      Operator Platform
      Fenders
   Operational Checkout Procedures
      Operational Checkout Procedures
   Engine Operation, Tests and Adjustments
      Component Location
      Theory of Operation
      Diagnosis, Tests and Adjustments
   Fuel/Air Operation, Test and Adjustments
      Component Location
      Theory of Operation
      Diagnosis, Tests and Adjustments
   Electrical System Operation, Tests and Adjust
      Operation and Tests-General
      SE01-Starting System
      SE02-Charging System
      SE03-Instrument Panel
      SE04-Lighting System
      SE05-Turn Signal and Hazard Warning Lights
      SE06-Horn
      SE07-Rear PTO Warning System
      SE08-7-Pin Trailer Connector
      Component Information-Connectors
      Component Information-Wiring Harnesses
      Component Location-Electrical Parts
      Component Information-Ground Connections
      Wiring Diagrams
   Power Train Operation, Tests and Adjustments
      Component Location-Transmission
      Theory of Operation-Transmission
      Diagnosis, Tests, and Adjustments-Transmission
   Steering and Brake Operation, Test & Adjustments
      Component Location
      Theory of Operation
      Diagnosis, Tests and Adjustments
   Hydraulic System Operation, Test and Adjustments
      Component Location
      Theory of Operation
      Diagnosis
      Hydraulic Tests
      Hydraulic Schematics

tm103219 - 20A Nursery and Green House Tractors

Table of Contents

Foreword

Section 10: General Information

Group 05: Safety

Summary of References—Safety

Recognize Safety Information

Understand Signal Words

Follow Safety Instructions

Handle Fuel Safely—Avoid Fires

Prevent Battery Explosions

Prepare for Emergencies

Handling Batteries Safely

Avoid High-Pressure Fluids

Park Machine Safely

Support Machine Properly

Wear Protective Clothing

Work in Clean Area

Work In Ventilated Area

Illuminate Work Area Safely

Replace Safety Signs

Use Proper Lifting Equipment

Service Tires Safely

Avoid Harmful Asbestos Dust

Avoid Heating Near Pressurized Fluid Lines

Remove Paint Before Welding or Heating

Use Proper Tools

Dispose of Waste Properly

Live With Safety

Group 10: General Specifications

General Specifications (Summary of References)

Machine Specifications

Repair Specifications

Ground Speed Estimates

Service Recommendations for O-Ring Boss Fittings

Service Recommendations for Flat Face O-Ring Seal Fittings

Metric Bolt and Cap Screw Torque Values

Unified Inch Bolt and Cap Screw Torque Values

Group 15: Fuel and Lubricants

Fuel and Lubricants (Summary of References)

Handle Fuel Safely—Avoid Fires

Handle Fluids Safely—Avoid Fires

Fuel Storage

Cold Weather Operation

Handling and Storing Diesel Fuel

Diesel Fuel

Minimizing the Effect of Cold Weather on Diesel Engines

Bio-Diesel Fuel

Fill Fuel Tank

Diesel Engine Oil

Oil Filters

Anti-Chatter Transmission/Hydraulic Oil

Use Correct Hydraulic-Transmission Filter Element

Gear Oil

Grease

Group 20: Serial Number Location

Serial Number Location (Summary of References)

Identification Plates

Record Tractor Serial Number

Record Engine Serial Number

Transmission Serial Number

Keep Proof of Ownership

Keep Machines Secure

Group 25: Features and Accessories

Features and Accessories (Summary of References)

Features and Accessories

Standard Features

Section 20: Engine Repair

Group 05: Engine

Engine (Summary of References)

Service Equipment and Tools

Specifications

Remove Engine

Install Engine

Engine Disassembly Sequence

Engine Re-Assembly Sequence

Engine Break-In Guidelines

Diesel Engine Break-In Oil

Group 10: Cylinder Head and Valves

Cylinder Head and Valves (Summary of References)

Special or Essential Tools

Specifications

Torques for Hardware

Cylinder Head - Exploded View

Remove Cylinder Head

Clean Injection Nozzle Bores

Valve Actuating Parts

Remove Valves and Valve Springs

Clean Valve Guides

Measure Valve Guides

Clean and Inspect Valve Seats

Lapping Valve Seats

Check Valve Recess

Remove Valve Seat Inserts

Valve Seat Insert Installation

Check Valves

Grind Valves

Install Valves

Install Cylinder Head

Disassembling and Checking Rocker Arm Shaft

Reassembling Rocker Arm Shaft

Install Rocker Arm Assembly

Valve Clearance

Valve Adjustment Sequence

Install Rocker Arm Cover

Final Work

Group 15: Cyl. Block, Liners, Pistons and Rods

Cyl. Block, Liners, Pistons and Rods (Summary of References)

Special or Essential Tools

Specifications

Torques for Hardware

Exploded View

Connecting Rods - General Information

Remove Pistons and Connecting Rods

Measure Cylinder Liner Bore

Cylinder Liner Deglazing

Remove and Install Cylinder Liners

Measure Connecting Rod Bearing

Rod Bearing Clearance

Measure Connecting Rod Diameter

Parallelism Between Connecting Rod Axies

Clean and Inspect Pistons

Measure Piston Pin

Measure Piston Pin Bore

Piston Ring Grooves

Piston Head and Skirt Checking

Install Piston Rings

Piston Rings Staggering

Piston/Liner Set Information

Assemble Piston and Connecting Rod

Install Piston and Connecting Rod

Measure Piston Protrusion

Complete Final Assembly

Group 20: Crankshaft, Main Bearings and Flywheel

Crankshaft, Main Bearings and Flywheel (Summary of References)

Special or Essential Tools

Specifications

Torques For Hardware

Remove Flywheel Guard

Flywheel Removal

Install Flywheel

Remove Crankshaft Rear Oil Seal

Remove Crankshaft

Crankshaft Inspection

Check Crankshaft Journal Diameter

Determine Crankshaft Main Bearing Clearance Using PLASTIGAGE PLASTIGAGE is a trademark of DANA Corp.

Regrind Crankshaft

Crankshaft Regrinding Guidelines

Replace Crankshaft Gear

Crankshaft Installation

Group 25: Camshaft and Timing Gear Train

Camshaft and Timing Gear Train (Summary of References)

Special or Essential Tools

Specifications

Torques for Hardware

Remove Timing Gear Cover

Remove Camshaft

Measure Height of Cam Lobe

Remove and Install Camshaft Gear

Disassemble, Inspect and Assemble of Camshaft

Install Camshaft

Install Timing Gear Cover

Group 30: Lubrication System

Lubrication System (Summary of References)

Special or Essential Tools

Specifications

Replace Oil Bypass Valve

Remove Oil Pump

Oil Pump Checking

Oil Pump Gear Axial Clearance

Oil Pump Gear Radial Clearance

Oil Pump Installation

Install Oil Pan

Section 30: Fuel and Air Repair

Group 05: Fuel System

Fuel System (Summary of References)

Special or Essential Tools

Specification

Remove, Inspect and Install Fuel Tank

Replace Fuel Filter

Replace Fuel Transfer Pump

Replace Fuel Filter Assembly

Remove Fuel Injection Pump

Repair Fuel Injection Pump

Replace Throttle Lever

Install Fuel Injection Pump

Remove Fuel Injection Nozzle

Clean Fuel Injection Nozzle

Fuel Injection Nozzle Disassembly

Injector Checking and Setting

Install Fuel Injection Nozzle

Group 10: Air Intake and Exhaust System

Air Intake and Exhaust System (Summary of References)

Remove, Inspect, and Install Air Cleaner Elements

Exhaust Manifold Inspection

Group 15: Speed Control Linkage

Inspect and Repair Speed Control Linkage

Section 40: Electrical Repair

Group 05: Battery, Starter and Alternator

Battery, Starter and Alternator (Summary of References)

Remove and Install Battery

Remove and Install Starter

Replace Alternator/Regulator

Group 10: Electrical System Components

Electrical System Components (Summary of References)

Service Equipment and Tools

Other Material

Replace Engine Oil Pressure Sensor

Replace Key Switch

Replace Light Switch

Replace Turn Signal Controller

Replace Rear PTO Switch

Replace Neutral Start Switch

Replace Fuel Level Sender

Group 15: Wiring Harness

Wiring Harness (Summary of References)

Special or Essential Tools

Service Parts Kits

Remove Connector Body from Blade Terminals

Section 50: Power Train Repair

Group 05: Clutch Housing

Clutch Housing (Summary of References)

Service Equipment and Tools

Other Material

Specifications

Separate Clutch Housing from Transmission

Install Clutch Housing to Transmission

Inspect and Repair Clutch Pedal and Linkage

Group 10: Clutch Assembly

Clutch Assembly (Summary of References)

Specifications

Remove and Inspect Single Clutch Assembly

Install Single Clutch Assembly

Group 15: Transmission

Transmission (Summary of References)

Specifications

Inspect and Repair Gear Shift and Range Shift Lever

Remove Transmission

Disassemble and Inspect Transmission

Assemble Transmission

Install Transmission

Group 20: Central Pivot

Central Pivot (Summary of References)

Remove Front Differential Casing from Central Pivot

Disassemble and Inspect Central Pivot

Assembly of Center Pivot

Install Front Differential Casing to Central Pivot

Group 25: Rear PTO Drive Shaft

Rear PTO Drive Shaft (Summary of References)

Other Material

Specifications

Remove, Inspect and Install Rear PTO Lever and Linkage

Remove and Install Standard Rear PTO Drive Shaft Assembly

Disassemble, Inspect and Assemble Standard Rear PTO Drive Shaft Assembly

Group 30: Differential

Differential (Summary of References)

Essential Tools

Service Equipment and Tools

Other Material

Specifications

Remove and Install Differential Assembly

Front and Rear Differential Assembly—Exploded View

Disassemble, Inspect, and Assemble Differential Assembly Front and Rear

Remove, Inspect and Assemble Differential Drive Shaft Front

Remove, Inspect and Assemble Differential Drive Shaft Rear

Remove, Inspect, and Install Differential Lock Assembly Front

Remove, Inspect, and Install Differential Lock Assembly Rear

Differential Backlash Adjustment

Group 35: Final Drives

Final Drives (Summary of References)

Service Equipment and Tools

Other Material

Specifications

Remove and Install Final Drive Assembly

Remove, Inspect, and Install Axle Shaft Assembly Front

Section 60: Steering and Brake Repair

Group 05: Steering Repair

Steering Repair (Summary of References)

Other Material

Specifications

Service Parts Kits

Remove and Install Steering Column and Valve

Remove and Install Steering Cylinder

Disassemble, Inspect and Assemble Steering Cylinder

Remove, Inspect and Install Tie Rod Assembly

Group 10: Brake Repair

Brake Repair (Summary of References)

Service Equipment and Tools

Other Material

Remove and Install Brake Pedals

Disassemble, Inspect and Assemble of Brake Pedal

Remove and Inspect Brakes

Install Brakes

Section 70: Hydraulic Repair

Group 05: Hydraulic Pump and Filter

Hydraulic Pump and Filter (Summary of References)

Specifications

Service Parts Kits

Remove, Inspect and Install Hydraulic Pump

Remove and Install Hydraulic Oil Filter/Manifold

Inspect and Replace Hydraulic Supply and Suction/Return Lines

Group 10: Rockshaft

Rockshaft (Summary of References)

Other Material

Specifications

Remove, Inspect, and Install Hitch Lift Lever Assembly

Remove, Inspect, and Install Hitch Control Valve

Remove and Install Hitch Case

Remove, Inspect and Install Lift Arm

Remove, Inspect and Install Rockshaft Piston and Cylinder

Section 80: Miscellaneous Repair

Group 10: Wheels

Specifications

Tighten Bolts-Front and Rear Axle

Group 15: 3-Point Hitch

3-Point Hitch (Summary of References)

Inspect and Repair Draft Links

Inspect and Repair Lift Link

Inspect and Repair Center Link

Section 90: Operator Station Repair

Group 05: Seat and Support

Remove and Install Seat and Support

Group 10: ROPS

Specifications

Remove and Install ROPS

Group 15: Operator Platform

Specifications

Remove and Install Step

Group 20: Fenders

Fenders (Summary of References)

Remove and Install Fenders

Remove and Install Front Side Mudguard

Remove and Install Rear Side Mudguard

Section 210: Operational Checkout Procedures

Group 10: Operational Checkout Procedures

Operational Checkout Procedures (Summary of References)

Operational Checkout Procedure Information

Engine Oil Level and Condition Check

Transmission and Hydraulic Oil Check

Fuel System Check

Air Intake System Check

Electrical System Check

Indicator Lamps Check

Engine Start Check

Transmission Park Position Start Check

Engine Fast and Slow Idle Operation

Steering Check

Differential Lock Check

Clutch Check

Transmission Shift Check

Range Lever Shift Check

Brake Check

Lift Check

Miscellaneous Checks

Section 220: Engine Operation, Tests and Adjustments

Group 05: Component Location

Component Location (Summary of References)

Component Location Information

Engine External Components—Right-Hand Side

Engine External Components—Left-Hand Side

Engine External Components—Top View

Group 10: Theory of Operation

Theory of Operation (Summary of References)

Theory of Operation Information

Engine Lubrication System

Group 15: Diagnosis, Tests and Adjustments

Diagnosis, Tests and Adjustments (Summary of References)

Specifications

Essential Tools

Diagnostic Information

Engine Turns Over But Will Not Start or Starts Hard

Engine Runs Irregularly or Stalls Frequently

Engine Runs Rough

Engine Has Low Power

Engine Smokes—Black or Grey

Engine Smokes Excessively—White

Engine Uses Excess Fuel

Engine Has Excess Noise or Vibration

Engine Uses Excess Oil or Smokes Blue

Engine Has Low Oil Pressure

Engine Oil Pressure Test

Idle Speed Adjustment

Throttle Lever Adjustment

Injection Pump Timing Adjustment

Valve Clearance Adjustment

Bleed Fuel System

Section 230: Fuel/Air Operation, Test and Adjustments

Group 05: Component Location

Component Location (Summary of References)

Component Location Information

Fuel System Components

Air Intake System Components

Group 10: Theory of Operation

Theory of Operation (Summary of References)

Theory of Operation Information

Fuel System Operation

Fuel Filter Pump Operation

Fuel Injection Pump Operation

Governor Operation

Air Intake System Operation

Group 15: Diagnosis, Tests and Adjustments

Diagnosis, Tests and Adjustments (Summary of References)

Diagnostic Information

Fuel/Air Diagnosis, Tests and Adjustments

Section 240: Electrical System Operation, Tests and Adjust

Group 00: Operation and Tests—General

Operation and Tests—General (Summary of References)

Theory of Operation Information

Fuse Block and Fuses

Relays—Theory of Operation

JT05685—Load Tester

JT05719—Tachometer

JT05791A - Multimeter

Fuse Test

Relay Test

Group S01: SE01—Starting System

SE01—Starting System (Summary of References)

Diagnostic Schematic, SE01—Starting System Functional Schematic and Circuit Diagram

Voltage Checks

Starter AMP Draw/RPM Test

Starter No-Load AMP Draw/RPM Test

Group S02: SE02—Charging System

SE02—Charging System (Summary of References)

Diagnostic Schematic, SE02—Charging System Functional Schematic and Circuit Diagram

Alternator/Regulator Test

E03—Battery Charging Indicator Circuit/Harness Test

Battery Voltage and Specific Gravity Tests

Charge Battery

Battery Load Test

Group S03: SE03—Instrument Panel

SE03—Instrument Panel (Summary of Reference)

Diagnostic Schematic, SE03—Instrument Panel Functional Schematic and Circuit Diagram

B01—Engine Oil Pressure Sensor Circuit/Harness Test

B02—Fuel Level Sensor Circuit/Harness Test

Group S04: SE04—Lighting System

SE04—Lighting System (Summary of References)

Diagnostic Schematic, SE04—Head Lights Functional Schematic and Circuit Diagram

Diagnostic Schematic, SE04—Tail Lights Functional Schematic and Circuit Diagram

E01 and E02 Head Lights, Circuit/Harness Test

E10—Right-Hand Side Tail Light Circuit/Harness Test

E12—Left-Hand Side Tail Light Circuit/Harness Test

Group S05: SE05—Turn Signal and Hazard Warning Lights

SE05—Turn Signal and Hazard Warning Lights (Summary of References)

Diagnostic Schematic, SE05—Turn Signal Lights Functional Schematic and Circuit Diagram

Diagnostic Schematic, SE05—Hazard Warning Lights Functional Schematic and Circuit Diagram

E09—Rear Right-Hand Side Turn Signal Light Circuit/Harness Test

E11—Rear Left-Hand Side Turn Signal Light Circuit/Harness Test

E13—Front Right-Hand Side Turn Signal Light Circuit/Harness Test

E14—Front Left-Hand Side Turn Signal Light Circuit/Harness Test

E07—Turn Signal Indicator Circuit/Harness Test

Hazard Warning Lights Circuit/Harness Test

Group S06: SE06—Horn

SE06—Horn (Summary of Reference)

Diagnostic Schematic, SE06—Horn Functional Schematic and Circuit Diagram

H01—Horn Circuit/Harness Test

Group S07: SE07—Rear PTO Warning System

SE07—Rear PTO Warning System (Summary of References)

Diagnostic Schematic, SE07—PTO Warning System Functional Schematic and Circuit Diagram

H02—PTO Buzzer, Circuit/Harness Test

E06—PTO Indicator, Circuit/Harness Test

Group S08: SE08—7-Pin Trailer Connector

SE08—7-Pin Trailer Connector (Summary of References)

Diagnostic Schematic, SE08—7-Pin Trailer Connector Functional Schematic and Circuit Diagram

X02—7-Pin Trailer Connector Circuit/Harness Test

Group 105: Component Information—Connectors

Component Information—Connectors (Summary of References)

X01—5-Pin Connector for Power Supply to Headlight Connectors XE01 and XE02

X02—7-Pin Trailer Connector

X03—4-Pin Connector for Right-Hand Side Turn Signal Lights E09, E13 and Tail Light E10

X04—4-Pin Connector for Left-Hand Side Turn Signal Light E11, E14 and Tail Light E12

X05—12/1-Pin Connectors for Fuse Box (F01-F06)

XB01—1-Pin Connector for Engine Oil Pressure Sensor B01

XB02—2/1-Pin Connectors for Fuel Level Sensor B02

XB03—2-Pin Connector for Seat Switch B03

XB04—3/1-Pin Connector for PTO Safety Switch B04

XB05—3-Pin Connector for Neutral Start Switch B05

XE01—3/1-Pin Connectors for Left-Hand Side Headlight E01

XE02—3/1-Pin Connectors for Right-Hand Side Headlight E02

XE03—2/1-Pin Connector for Battery Charging Indicator E03

XE04—2/1-Pin Connector for Engine Oil Pressure Warning Light E04

XE05—2/1-Pin Connectors for Fuel Level Warning Light E05

XE06—2/1-Pin Connector for PTO Indicator E06

XE07—2/1-Pin Connector for Turn Signal Indicator E07

XE08—2/1-Pin Connector for High Beam Indicator E08

XF00—2-Pin Connector for Main Fuse F00

XG01—2/1-Pin Connectors for Battery G01

XG02—Connectors for Alternator G02

XH01—2/1-Pin Connectors for Horn H01

XH02—2/1-Pin Connectors for PTO Buzzer H02

XK01—5-Pin Connector for Starting Relay K01

XK02—5-Pin Connector for PTO Relay K02

XK03—5-Pin Connector for PTO Timer Alarm Relay K03

XK04—24-Pin Connector for Flasher Unit K04

XM01—Connectors for Starter Motor M01

XS01—5/1-Pin Connectors for Main Switch S01

XS02—5/1-Pin Connector for Turn Signal Light Switch S02

XS03—6/1-Pin Connector for Light and Horn Switch S03

XS04—8-Pin Connector for Hazard Warning Switch S04

Group 110: Component Information—Wiring Harnesses

Component Information—Wiring Harnesses (Summary of References)

W01—Main Wiring Harness

Group 115: Component Location—Electrical Parts

Component Location—Electrical Parts (Summary of References)

B01—Engine Oil Pressure Sensor

B02—Fuel Level Sensor

B03—Seat Switch

E01—Headlight Left-Hand Side

E02—Headlight Right-Hand Side

E03—Battery Charging Indicator

E04—Engine Oil Pressure Indicator

E05—Fuel Level Indicator

E06—PTO Indicator

E07—Turn Signal Indicator

E08—High Beam Indicator

E09—Rear Right-Hand Side Turn Signal Light

E10—Right-Hand Side Tail Light

E11—Rear Left-Hand Side Turn Signal Light

E12—Left-Hand Side Tail Light

E13—Front Right-Hand Side Turn Signal Light

E14—Front Left-Hand Side Turn Signal Light

F00—Fuse (+50 A)

Fuse Box (F01—F06)

G01—Battery

G02—Alternator

H01—Horn

H02—PTO Buzzer

K01—Starter Relay

K02—PTO Relay

K03—PTO Timer Alarm Relay

K04—Flasher Unit

M01—Starter Motor

S01—Main Switch

S02—Turn Signal Light Switch

S03—Light and Horn Switch

S04—Hazard Warning Light Switch

Group 120: Component Information—Ground Connections

XGND01—Ground Connection for Wiring Harness W01

Group 200: Wiring Diagrams

Wiring Diagrams

Schematic Information

Component Identification Table

Wire Color Codes

Wiring Schematic, W01—Main Wiring Harness

Section 250: Power Train Operation, Tests and Adjustments

Group 05: Component Location—Transmission

Component Location—Transmission (Summary of References)

Component Location Information

Power Train Components

Clutch Components

Transmission Components

Final Drive Components

Group 10: Theory of Operation—Transmission

Theory of Operation—Transmission (Summary of References)

Theory of Operation Information

Transmission—Gear Shift Power Flow

Transmission—Range Shift Power Flow

Differential Power Flow

Differential Lock Operation

Final Drive Operation

Group 15: Diagnosis, Tests, and Adjustments-Transmission

Diagnosis, Tests, and Adjustments—Transmission (Summary of References)

Diagnostic Information

Isolate the Problem Area

Clutch Slips

Clutch Dragging

Clutch Does Not Engage

Clutch Grabs

Clutch Squeaks

Clutch Does Not Release

Clutch Chatters

Clutch Rattles

Clutch Engagement Is Noisy

Excessive Vibration in Traction Clutch

Clutch Pedal Does Not Return

Clutch Pedal Loose

Clutch Pedal Pulsates

Jerky or Rough Transmission of Power

Low Transmission Oil Level (Excessive Oil Leakage)

Gears Clash, Shift Hard, or Will Not Engage

Two Speeds Engage Together

Transmission Will Not Stay in Gear

Transmission Noisy

PTO Noisy

PTO Hard to Engage

PTO Will Not Operate

PTO Will Not Stay Engaged

Excessive Differential Noise

Differential Does Not Work

No Differential Lock

Differential Chatters

Axle Noise

Axle Shaft Will Not Turn

Check and Adjust Clutch Pedal Free Play

Section 260: Steering and Brake Operation, Test & Adjustments

Group 05: Component Location

Component Location (Summary of References)

Component Location Information

Steering System Components

Group 10: Theory of Operation

Theory of Operation (Summary of References)

Theory of Operation Information

Steering System Operation

Steering Valve Operation—Park Position and Manual Turning

Steering Valve Operation—Power Turning

Group 15: Diagnosis, Tests and Adjustments

Diagnosis, Tests and Adjustments (Summary of References)

Diagnostic Information

Isolate the Problem—Steering System

Steering Sluggish or Loss of Steering

Isolate the Problem—Brakes

Steering Cylinder Leakage Test

Steering Valve Leakage Test

Brake Pedal Adjustment

Section 270: Hydraulic System Operation, Test and Adjustments

Group 05: Component Location

Component Location (Summary of References)

Component Location Information

Hydraulic System Components

Group 10: Theory of Operation

Theory of Operation (Summary of References)

Theory of Operation Information

Hydraulic System Operation

Hydraulic Pump Operation

Group 15: Diagnosis

Diagnosis (Summary of References)

Diagnostic Information

Preliminary Hydraulic System Inspection

Entire Hydraulic System Fails to Function/No Hydraulic Pump Output

Insufficient Pump Delivery

Hydraulic Functions Too Slow

Excessive Pump Pressure

Slow Hydraulic Pump Response

Excessive Pump Noise During Operation

Cylinder Does Not Lift or Lifts Slowly

Group 20: Hydraulic Tests

Hydraulic Tests (Summary of References)

Hydraulic System Tests

Pump Flow Test

Hitch Valve Test

Group 45: Hydraulic Schematics

Hydraulic Circuit Symbols