Complete Operation and Test manual with Electrical Wiring Diagrams for John Deere 744H 4WD Loader & 744H MH Material Handler, with all the shop information to maintain, diagnose, and service like professional mechanics.

John Deere 744H 4WD Loader & 744H MH Material Handler workshop Diagnostics and Test 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.
* 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

Total Pages: 1,301 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable)
Category: Operation and Test
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—)
Return-to-Carry, Boom Height Kickout and Return-to-Dig Circuit Functional Schematic (S.N. 581928—)
Differential Lock and Pin Disconnect Circuit Functional Schematic
Front Wiper Circuit Functional Schematic (S.N. 581928—)
Rear Wiper Circuit Functional Schematic (S.N. 581928—)
Secondary Steering Option Circuit Specifications
Secondary Steering Option Circuit Operational Information
Secondary Steering Option Circuit Theory of Operation
Secondary Steering Option Circuit Functional Schematic
Horn Circuit Functional Schematic (S.N. 581928—)
Flasher and Turn Signal Functional Schematic (S.N. 581928—)
Tail, Marker, and License Plate Lighting Circuits Theory of Operation
Tail, Marker, and License Plate Lighting Circuits Theory of Operation
Tail, Marker, and License Plate Lighting Circuits Functional Schematic
Drive Light Circuit Theory of Operation (S.N. —581927)
Drive Light Circuit Operational Information (S.N. 581928—)
Drive Light Circuit Theory of Operation (S.N. 581928—)
Hi-Beam/Flash-to-Pass Light Circuit Operational Information
Hi-Beam/Flash-to-Pass Light Circuit Theory of Operation
Rotary Beacon Light Circuit (Optional) Operational Information
Rotary Beacon Light Circuit (Optional) Theory of Operation
Drive, Hi-Beam, and Rotary Beacon (Optional) Light Circuits Functional Schematic
Brake Light Circuit Specifications
Brake Light Circuit Operational Information
Brake Light Circuit Theory of Operation
Brake Light Circuit Functional Schematic
Cab Work Lights Circuit Operational Information
Cab Work Lights Circuit Theory of Operation
Cab Work Lights Circuit Functional Schematic (S.N. 581928—)
24V to 12V Converter and Radio Circuits Functional Schematic
Engine Controller Unit Specifications (S.N. —581927)
Engine Controller Unit—Sensor Specifications (S.N. 581928—)
Engine Controller Unit Specifications—Temperature Sensors
Engine Controller Unit Operational Information (S.N. —581927)
Engine Controller Unit Operational Information (S.N. 581928—)
Engine Controller Unit Theory of Operation (S.N. —581927)
Engine Controller Unit Theory of Operation (S.N. 581928—)
Engine Controller Unit—Input Signals (S.N. —581927)
Engine Controller Unit—Input Signals (S.N. 581928—)
Engine Controller Unit—Output Signals
Engine Control Unit Diagnostic Guideline (S.N. —573732)
Engine Control Unit Diagnostic Guideline (S.N. 573733—581927)
Engine Control Unit Diagnostic Guideline (S.N. 581928—)
Engine Controller Unit Functional Schematic (S.N. —573732)
Engine Controller Unit Connector Signals—Cab Side
Engine Controller Unit Connector Signals—Engine Side
Engine Controller Unit Functional Schematic (S.N. 573733—581927)
Engine Controller Unit Connector Signals—Injector Harness
Engine Controller Unit Connector Signals—Power Harness
Engine Controller Unit Connector Signals—CAN and Sensor Harness
Electronic Controllers Block Diagram (S.N. —573732)
Electronic Controllers Block Diagram (S.N. 581928—)
Group 20: References
Diagnostic Trouble Codes Quick Reference List
Transmission Diagnostic Trouble Codes
Engine Related Diagnostic Trouble Codes
Engine Diagnostic Trouble Codes
Steering and Brake Diagnostic Trouble Codes
Electrical System Diagnostic Trouble Codes
Hydraulic System Diagnostic Trouble Codes
Diagnose Battery Malfunctions
Check Battery Electrolyte Level and Terminals
Procedure for Testing Batteries
Using Booster Batteries—24 Volt System
Alternator Operation—24 Volt 55 Amp and 80 Amp Bosch
Clutch Cutoff Sensor Adjustment (S.N. 562284— )
Analog Throttle Position Sensor Adjustment
Diagnostic Trouble Codes—How to Use Listing for Diagnostics
Sensor Circuitry Check
Diagnostic Trouble Codes—After Machine Repair
Section 9020: Power Train
Group 05: Theory of Operation
Transmission Clutch Engagement and Solenoids Activated
Power Train Component Overview
Torque Converter Operation
Transmission Operation
Transmission Rear View
Transmission Side View
Transmission Front View
Transmission Test Points And Connections
Transmission Operation—First Gear Forward
Transmission Operation—Third Gear Forward
Transmission Operation—First Gear Reverse
Clutch Pack Operation
Transmission Hydraulic Components
Transmission Hydraulic System
Transmission Pump Operation
Transmission Hydraulic Control Unit Components (Transmission S.N. —000283)
Transmission Control Valve Components (Transmission S.N. 000284— )
Transmission Clutch Modulation Chart With Solenoids
Thermal Bypass Valve Operation
TEAMMATE TEAMMATE is a trademark of Deere & Company. II Axle Operation
John Deere TEAMMATE TEAMMATE is a trademark of Deere & Company. II Axles
Differential Lock Operation
Hydraulic Differential Lock Air Boost System
Turbocharger Boost For Differential Lock
Axle Shaft and Housing
Park Brake Operation
Group 15: Diagnostic Information
Diagnose Transmission System Malfunctions
Diagnose Service Brake Malfunctions
Diagnose Differential and Axle Malfunctions
Diagnose Drive Line Malfunctions
Diagnose Park Brake Malfunctions
Park Brake Will Not Release
Hydraulic Circuit Symbols
Transmission Control System 744H
Power Train (S.N. —581927)
Power Train (S.N. 581928— )
Transmission Control Circuit—First Forward
Group 20: Adjustments
Clutch Cut-Off Selection
External Service Brake Inspection
Hydraulic Brake Bleeding Procedure
Brake Pump and Differential Lock System Oil Clean-Up Procedure Using Portable Filter Caddy
Transmission Speed Sensor Adjustment
Transmission Controller Unit (TCU)—Electronic Clutch Adjustment (S.N. 573601— )
Group 25: Tests
Display Monitor Tachometer
Display Monitor Transmission Oil Temperature
Transmission Oil Warm-Up Procedure
Driveline Bearing—Park Brake Pressure Test
Driveline Bearing—Park Brake Drag Test
Transmission Pump Flow Test
Transmission System Pressure Test
Transmission Clutch Pressure Test
Transmission Element Leakage Test (S.N. —581927)
Transmission Element Leakage Test (S.N. 581928—)
Lube Pressure Test (S.N. —581927)
Lube Pressure Test (S.N. 581928—)
Converter-In Pressure Test
Converter-Out Pressure Test
Converter Relief Pressure Test (S.N. —581927)
Converter Relief Pressure Test (S.N. 581928—)
Converter-Out Flow Test (S.N. —581927)
Converter-Out Flow Test (S.N. 581928—)
Torque Converter Stall Speed Test
Transmission Oil Cooler Thermal Bypass Valve Test
Transmission Oil Cooler Thermal Bypass Valve Pressure Test
Transmission Oil Cooler Restriction Test (S.N. —581927)
Transmission Oil Cooler Restriction Test (S.N. 581928—)
Section 9025: Hydraulic System
Group 05: Theory of Operation
Main Hydraulic Pump - Loader And Steering Hydraulic Pump Operation
Steering System Components
Steering Circuit Operation—Right Turn
Priority Valve Operation (Neutral)
Priority Valve (Mid-Turn)
Priority Valve (Steering Cylinder Bottomed)
Steering Valve Operation
Steering Cylinder Operation
Secondary Steering System Operation
Secondary Steering Inlet Manifold Operation
Hydraulic System Components
Loader Hydraulic System
Loader Hydraulic Pump
Pump Pressure Compensator
Pump Control At Neutral
Pump Control Function Metering
Pump Control—Full Flow
Pump Control—Function Bottomed
Pressure Reducing Valve—Boom Raise Operation (S.N. —571404)
Pressure Reducing Valve—Boom Down—Engine Running Operation (S.N. —571404)
Pressure Reducing Valve—Boom Down—Engine OFF Operation (S.N —571404)
Pressure Reducing Valve—Boom Raise Operation (S.N. 571405— )
Pressure Reducing Valve—Boom Down—Engine Running Operation (S.N. 571405— )
Pressure Reducing Valve—Boom Down—Engine OFF Operation (S.N. 571405— )
Pilot Controller-Boom Float
Pilot Controller—Bucket Rollback
Pilot Orifice Check Valve For Control Valve Sections
Loader Control Valve (S.N. —572380)
Loader Control Valve (S.N. 572381—)
Boom Section Operation
Bucket Section Operation
Auxiliary Section Operation
Relief Valve Operation
Circuit Relief Valve Operation
Anti-Cavitation Valve Operation (S.N. —571096)
Anti-Cavitation Valve Operation (S.N. 571097— )
Loader Control Valve—Load Sense Circuit
Loader Cylinder—180 Series
Return Filter Operation
Ride Control Operation (S.N —582302)
Ride Control Operation—In The "On" Position—Bucket Dump (S.N —582302)
Ride Control Operation—In The “Off” Position (S.N —582302)
Ride Control “ON” Normal Operation (S.N 582303—)
Ride Control Operation—In The "ON" Position—Bucket Dump (S.N 582303—)
Ride Control Operation—In The “Off” Position (S.N 582303—)
Service Brake Hydraulic System
Brake Accumulator Operation
Service Brake Valve
Axle Disconnect And Pin Disconnect Circuit Operation (S.N. —571404)
Axle Disconnect And Pin Disconnect Circuit Operation (S.N. 571405— )
Group 15: Diagnostic Information
Diagnose Hydraulic System Malfunctions
Hydraulic Circuit Symbols
Loader Hydraulic System (S.N. —574108)
Loader Hydraulic System (S.N. 574109—581927)
Loader Hydraulic System (S.N. 581928—)
Brakes And Steering Hydraulic System (S.N. —581927)
Brakes And Steering Hydraulic System (S.N. 581928—)
Hydraulic System Schematic—Neutral
Hydraulic System Schematic—Multiple Functions Activated
Hydraulic Reservoir (S.N. —581927)
Hydraulic Reservoir (S.N. 581928—)
Group 20: Adjustments
Hydraulic Oil Clean-Up Procedure Using Portable Filter Caddy
Boom Height Kickout Adjustment
Return-To-Carry Kickout Adjustment
Return-to-Dig Adjustment (S.N. —564434)
Return-To-Dig Adjustment (S.N. 564435— )
Hydraulic Pump Stroke Limiter Adjustment
Ride Control Accumulator Discharge Procedure
Ride Control Accumulator Gas Charge Procedure
Ride Control Accumulator Draining Procedure
Group 25: Test
Hydraulic Oil Warm-Up Procedure
JT02156A Digital Pressure and Temperature Analyzer Kit Installation
Display Monitor Tachometer
Display Monitor Hydraulic Oil Temperature
Display Monitor Hydraulic Oil Pressure
Loader And Steering Pump And Loader Hydraulic Pump Control Assembly Adjustment Test
Loader And Steering Hydraulic Pump Flow Test
Loader Hydraulic Pump Flow Test
Loader Relief And Circuit Relief Valve Pressure Test
Loader Cylinder Drift Test
Boom And Bucket Cylinder Leakage Test
Hydraulic Oil Cooler Restriction Test
Steering Valve Leakage Test
Steering Valve Drift Test
Priority Valve Leakage and Steering System Pressure Test
Priority Valve Check Valve Leakage Test
Priority Valve LS Port Flow Test
Secondary Steering Pump Relief Valve Pressure Test
Secondary Steering Manifold Primary Check Valve Leakage Test
Secondary Steering Manifold Secondary Check Valve Leakage Test
Pilot Control Valve Pressure Test
Pressure Reducing Valve Pressure Test
Cycle Time Test
Brake Accumulator Precharge Test
Service Brake Valve Pressure Test
Service Brake Valve Leakage Test
Service Brake Accumulator Inlet Check Valve Leakage Test
Service Brake And PRV (Pressure Reducing Valve) Accumulator Inlet Check Valve Leakage Test
Differential Lock Pressure Test
Differential Lock Leakage Test
Axle and Pin Disconnect Pressure Test (S.N. —571404)
Axle and Pin Disconnect Pressure Test (S.N. 571405— )
Pressure Reducing Valve Manifold Leakage Test
Hydraulic Oil Filter Inspection Procedure
Section 9031: Heating And A/C
Group 05: Theory Of Operation
Air Conditioning System Cycle Of Operation
Group 10: System Operational Checks
Air Conditioning Operational Checks
Results Of Operational Check
Group 15: Diagnostic Information
Diagnose Air Conditioning System Malfunctions
Diagnose Heater System Malfunctions
Air Conditioning Component Location Drawing
Group 25: Tests
Air Conditioning System Fittings Reference Chart
Proper Refrigerant Handling
R134a Refrigerant Cautions
Refrigerant Hoses And Tubing Inspection
R134a Air Conditioning System Test
Operating Pressure Diagnostic Chart
Low Pressure Switch Test
High Pressure Switch Test
Freeze Control Switch
Leak Testing

John Deere 744H 4WD Loader & 744H MH Material Handler Operation and Test Service Manual (TM1602)