John Deere 744H 4WD Loader & 744H MH Material Handler Operation and Test Service Manual (TM1602) PDF - MJODTM1602.zip

Full operation, testing, and electrical wiring diagram guide for the John Deere 744H 4WD Loader and 744H MH Material Handler — packed with the shop-level detail needed to maintain, troubleshoot, and repair these machines just like a seasoned technician.

The Diagnostics and Test service manual for the John Deere 744H 4WD Loader & 744H MH Material Handler contains:

* 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.

* 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.

TM1602 - John Deere 744H 4WD Loader and 744H MH Material Handler Technical Manual (Operation and Test).PDF

TM1602 - John Deere 744H 4WD Loader and 744H MH Material Handler Technical Manual (Operation and Test).EPUB

Total Pages: 1,301 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 Information

Operational Checkout Procedure

Operational Checkout Procedure

Engine

Theory of Operation

System Operational Checks

Diagnostic Information

Tests

Electrical System

System Information

System Diagrams

Sub-System Diagnostics

References

Power Train

Theory of Operation

Diagnostic Information

Adjustments

Tests

Hydraulic System

Theory of Operation

Diagnostic Information

Adjustments

Test

Heating And A/C

Theory Of Operation

System Operational Checks

Diagnostic Information

Tests

tm1602 - 744H Loader, 744H MH Material Handler

Table of Contents

Foreword

Technical Information Feedback Form

Section 9000: General Information

Group 01: Safety Information

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Add Cab Guarding For Special Uses

Inspect Machine

Stay Clear Of Moving Parts

Avoid High-Pressure Fluids

Beware Of Exhaust Fumes

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Dispose of Waste Properly

Prepare for Emergencies

Use Steps And Handholds Correctly

Start Only From Operator's Seat

Use And Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

Use Special Care When Operating Loader

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

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Complete Machine Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

Electronic Fuel Systems

Air Cleaner Operation

Group 10: System Operational Checks

Engine Operational Checks

Engine Diagnostic Trouble Codes for Lucas Engine Controller (S.N. —573732)

Engine Diagnostic Trouble Codes John Deere Engine Controller (S.N. 573733—)

Group 15: Diagnostic Information

Diagnose Engine Malfunctions

Group 25: Tests

Air Filter Restriction Indicator Switch Test

Radiator Air Flow Test (S.N.—581927)

Radiator Air Flow Test (S.N. 581928—)

Engine Power Test Using Engine Pulldown

Engine Power Test Using Turbocharger Boost Pressure (S.N.— 581927)

Engine Power Test Using Turbocharger Boost Pressure (S.N. 581928—)

Air Intake System Leakage Test

Fuel Pump Pressure Test—Dual Rail Fuel System (S.N. — 581927)

Fuel Pump Pressure Test—Single Rail Fuel System (S.N. 581928—)

Flush Fuel Rail

Section 9015: Electrical System

Group 05: System Information

Electrical Diagram Information

Group 10: System Diagrams

Fuse Specifications

Functional Schematic and Component Location Legend (S.N. — 581927)

Functional Schematic and Component Location Legend (S.N. 581928—)

System Functional Schematic Section Legend (S.N. — 581927)

System Functional Schematic Section Legend (S.N. 581928—)

System Functional Schematic (S.N. — 581927)

System Functional Schematic (S.N. 581928—)

Loader Frame Harness (W2) Component Location

Loader Frame Harness (W2) Connectors, Wire and Pin Location

Load Center Harness (W3) Component Location

Load Center Harness (W3) Connectors, Wire and Pin Location

Front Console Harness (W4) Component Location

Front Console Harness (W4) Component Location Mating Connectors

Front Console Harness (W4) Connectors, Wire and Pin Location

Engine Frame Harness (W5) Component Location

Engine Frame Harness (W5) Connectors, Wire and Pin Location

Engine Harness (W6) Component Location

Engine Harness (W6) Connectors, Wire and Pin Location

Engine Air Heater Harness (W7) Component Location

Engine Air Heater Harness (W7) Connectors, Wire and Pin Location

Return-to-Dig Harness (W8) Component Location

Return-to-Dig Harness (W8) Connectors, Wire and Pin Location

Ride Control Harness (W9) Component Location

Ride Control Harness (W9) Connectors, Wire and Pin Location

Transmission Harness (W10) Component Location

Transmission Harness (W10) Connectors, Wire and Pin Location

Rear Frame Harness (W13) Component Location

Rear Frame Harness (W13) Connectors, Wire and Pin Location

LPM Mode Harness (W14) Component Location (If Equipped)

LPM Mode Harness (W14) Connectors, Wire and Pin Location

License Plate Light Harness (W15) Component Location

License Plate Light Harness (W15) Connector, Wire and Pin Location

Pin Disconnect Harness (W16) Component Location

Pin Disconnect Harness (W16) Connectors, Wire and Pin Location

Secondary Steering Switch Harness (W17) Component Location

Secondary Steering Switch Harness (W17) Connectors, Wire and Pin Location

Cab Work Lights Harness (W19) Component Location

Cab Work Lights Harness (W19) Connectors, Wire and Pin Location

Blower/Air Conditioning Harness (W20) And Component Location Drawing (S.N. —581927)

Connectors For Blower And A/C Harness (W20)

Converter and Power Plug Harness (W21) Component Location

Converter and Power Plug Harness (W21) Connectors, Wire and Pin Location

Secondary Steering Pump Motor Harness (W23) Component Location

Secondary Steering Pump Motor Harness (W23) Connectors, Wire and Pin Location

Battery (Cables) Harness (W24) Component Location

Engine Valve Cover Harness (W33) Component Location

Engine Valve Cover Harness (W33) Connectors, Wire and Pin Location

Radio Harness (W34) Component Location (S.N. —572398)

Radio Harness (W34) Component Location (S.N. 572399—578925)

Radio Harness (W34) Component Location (S.N. 578926—)

Electric Air Adjust Seat Harness (W36) Component Location

CAN Terminator Harness (W37) Component Location

Group 15: Sub-System Diagnostics

24V System Power Circuit Operational Information (S.N. — 581927)

24V System Power Circuit Theory of Operation (S.N. — 581927)

24V System Power Circuit Functional Schematic (S.N. — 581927)

24V System Power Circuit Operational Information (S.N. 581928—)

24V System Power Circuit Theory of Operation (S.N. 581928—)

24V System Power Circuit Functional Schematic (S.N. 581928—)

Charging Circuit Operational Information (S.N. —581927)

Charging Circuit Theory of Operation (S.N. —581927)

Charging Circuit Functional Schematic (S.N. —581927)

Charging Circuit Operational Information (S.N. 581928—)

Charging Circuit Theory of Operation (S.N. 581928—)

Charging Circuit Functional Schematic (S.N. 581928—)

Start Circuit Operational Information (S.N. —581927)

Start Circuit Theory of Operation (S.N. —581927)

Start Circuit Functional Schematic (S.N. —581927)

Start Circuit Operational Information (S.N. 581928—)

Start Circuit Theory of Operation (S.N. 581928—)

Start Circuit Functional Schematic (S.N. 581928—)

Engine Air Heater Circuit Specifications (S.N. —581927)

Engine Air Heater Circuit Operational Information (S.N. —581927)

Engine Air Heater Circuit Theory of Operation (S.N. —581927)

Engine Air Heater Circuit Functional Schematic (S.N. —581927)

Engine Air Heater Circuit Specifications (S.N. 581928—)

Engine Air Heater Circuit Operational Information (S.N. 581928—)

Engine Air Heater Circuit Theory of Operation (S.N. 581928—)

Engine Air Heater Circuit Functional Schematic (S.N. 581928—)

Starting Aid Circuit Operational Information (S.N. —581927)

Starting Aid Circuit Theory of Operation (S.N. —581927)

Starting Aid Circuit Functional Schematic (S.N. —581927)

Starting Aid Circuit Operational Information (S.N. 581928—)

Starting Aid Circuit Theory of Operation (S.N. 581928—)

Starting Aid Circuit Functional Schematic (S.N. 581928—)

Ride Control Circuit Specifications (S.N. —581927)

Ride Control Circuit Operational Information (S.N. —581927)

Ride Control Circuit Theory of Operation (S.N. —581927)

Ride Control Circuit Functional Schematic (S.N. —581927)

Ride Control Circuit Specifications (S.N. 581928—)

Ride Control Circuit Operational Information (S.N. 581928—)

Ride Control Circuit Theory of Operation (S.N. 581928—)

Ride Control Circuit Functional Schematic (S.N. 581928—)

Monitor Display Unit Specifications—Switches and Senders (S.N. —581927)

Monitor Display Unit Specifications—Switches and Senders (S.N. 581928—)

Monitor Display Unit Circuit Specifications—Gauge Sensors (S.N. —581927)

Monitor Display Unit Circuit Specifications—Gauge Sensors (S.N. 581928—)

Monitor Display Unit Circuit Specifications—Gauge Ranges

Monitor Display Unit Circuit Specifications—Gauges

Monitor Display Unit Specifications—Diagnostic Menu Sensors (S.N. —581927)

Monitor Display Unit Specifications—Diagnostic Menu Sensors (S.N. 581928—)

Monitor Display Unit Operational Information (S.N. —581927)

Monitor Display Unit Operational Information (S.N. 581928—)

Monitor Display Unit Theory of Operation—Function (S.N. —581927)

Monitor Display Unit Theory of Operation—Function (S.N. 581928—)

Monitor Display Unit Theory of Operation—Operating Modes (S.N. —581927)

Monitor Display Unit Theory of Operation—Operating Modes (S.N. 581928—)

Monitor Display Unit Theory of Operation—Caution and Warning Lights, and Gauges (S.N. —581927)

Monitor Display Unit Theory of Operation—Caution and Warning Lights, and Gauges (S.N. 581928—)

Monitor Display Unit Theory of Operation—Switches, Sensors and Indicator Lights (S.N. —581927)

Monitor Display Unit Theory of Operation—Switch and Sensor Indicators (S.N. 581928—)

Monitor Display Unit Diagnostic Guideline

Monitor Display Unit Circuit Functional Schematic

Monitor Display Unit—Accessing Menus (S.N. —581927)

Monitor Display Unit—Accessing Menus (S.N. 581928—)

Monitor Display Unit Menu Structure

Monitor Display Unit—Normal Display

Monitor Display Unit—Accessory Menu—Clutch Cutoff (A 01)

Monitor Display Unit—Accessory Menu—Quick Shift Mode (A 02)

Monitor Display Unit—Accessory Menu—Auto Mode to First (A 03)

Monitor Display Unit—Accessory Menu—Job Timer Mode (A 04)

Monitor Display Unit—Accessory Menu—Stop Watch Mode (A 05)

Monitor Display Unit—Accessory Menu—0.1 Hour Meter Mode (A 06)

Monitor Display Unit—Accessory Menu—Metric Units Mode (A 07)

Monitor Display Unit—Diagnostics Menu—Diagnostic Trouble Codes (d 01)

Monitor Display Unit—Diagnostics Menu—Continuity Check (d 02)

Monitor Display Unit—Diagnostics Menu—Battery Monitor (d 03)

Monitor Display Unit—Diagnostics Menu—Engine Sensors (d 04)

Monitor Display Unit—Diagnostics Menu—Transmission Sensors (d 05)

Monitor Display Unit—Diagnostics Menu—Hydraulic Sensors (d 06)

Monitor Display Unit—Diagnostics Menu—Fuel Sensor (d 07)

Monitor Display Unit—User Diagnostics Menu—LPM Mode (d 09) (744H MH)

Monitor Display Unit—User Diagnostics Menu—Machine ID (d 10)

Monitor Display Unit—Service Menu—Machine Model (S 01)

Monitor Display Unit—Service Menu—Tell-Tale Diagnostic Trouble Codes (S 02)

Monitor Display Unit—Service Menu—Tire Size (S 03)

Monitor Display Unit—Service Menu—Enable Options (S 06)

Monitor Display Unit—Service Menu—Hitachi Mode (S 07)

Monitor Display Unit Reconfiguration—Service Menu Access

Monitor Display Unit Reconfiguration—Machine Model (S 01)

Monitor Display Unit Reconfiguration—Tire Size (S 03)

Monitor Display Unit Reconfiguration—Enable Options (S 06)

Monitor Display Unit Reconfiguration—Delete Diagnostic Trouble Codes

Chassis Computer Unit Circuit Operational Information (S.N. 581928—)

Chassis Computer Unit Circuit Theory of Operation (S.N. 581928—)

Chassis Computer Unit—Intermittent Wipers Circuit Signals

Chassis Computer Unit—Turn and Flasher Light Signals

Chassis Computer Unit—Drive Lights and Work Lights Signals

Chassis Computer Unit—Tail/Marker Lights Signals

Chassis Computer Unit—High Beam Lights Signals

Chassis Computer Unit—Battery Monitoring Signals (S.N. 581928—)

Chassis Computer Unit Diagnostic Guideline (S.N. 581928—)

Chassis Computer Unit Circuit Functional Schematic

Chassis Computer Unit Circuit Connector Signals for 30-Pin Connector X33 (S.N. — 571790)

Chassis Computer Unit Circuit Connector Signals for 60-Pin Connector X34 (S.N. — 571790)

Chassis Computer Unit Circuit Connector Signals for 30-Pin Connector X33 (S.N. 571791—573732)

Chassis Computer Unit Circuit Connector Signals for 60-Pin Connector X34 (S.N. 571791—573732)

Chassis Computer Unit Circuit Connector Signals for 30-Pin Connector X33 (S.N. 573733—581927)

Chassis Computer Unit Circuit Connector Signals for 30-Pin Connector X33 (S.N. 581928—)

Chassis Computer Unit Circuit Connector Signals for 60-Pin Connector X34 (S.N. 573733—581927)

Chassis Computer Unit Circuit Connector Signals for 60-Pin Connector X34 (S.N. 581928—)

Load Performance Management (LPM) Option Circuit Specifications (744H MH)

Load Performance Management (LPM) Circuit Operational Information (744H MH)

Load Performance Management (LPM) Circuit Theory of Operation (744H MH)

Load Performance Management (LPM) Option Circuit Functional Schematic (744H MH) (S.N. 581928—)

Transmission Control Unit Circuit Specifications

Transmission Control Unit Circuit Operational Information

Transmission Control Unit Circuit Theory Of Operation

Transmission Control Unit Diagnostic Guideline

Transmission Control Unit Circuit Functional Schematic

Transmission Control Unit Connector Signals

Transmission Hydraulic Control Unit Solenoid Check

Transmission Modes Of Operation—Manual And Automatic

Transmission Functions Set At Monitor Display Unit

Transmission Shift Ranges In Automatic Mode

Transmission Control Unit Operating Modes

Transmission Control Unit Response To Malfunctions

Transmission Control Unit Inputs And Outputs

Back-Up Alarm, Park Brake Sensing and Park Brake Release Circuits Specifications (S.N. 581928—)

Back-Up Alarm, Park Brake Sensing and Park Brake Release Circuits Operational Information (S.N. 581928—)

Back-Up Alarm, Park Brake Sensing and Park Brake Release Circuits Theory of Operation (S.N. 581928—)

Back-Up Alarm, Park Brake Sensing and Park Brake Release Circuits Functional Schematic (S.N. 581928—)

Pilot Enable and Boom Down Circuits Operational Information (S.N. 581928—)

Pilot Enable and Boom Down Circuits Theory of Operation (S.N. 581928—)

Pilot Enable and Boom Down Circuits Functional Schematic (S.N. 581928—)

Return-to-Carry, Boom Height Kickout and Return-to-Dig Circuits Operational Information (S.N. 581928—)

Return-to-Carry, Boom Height Kickout and Return-to-Dig Circuits Theory of Operation (S.N. 581928—)