John Deere 544G Series 4WD Loaders Repair Manual TM1530
- Type Of Document: Repair Manual
- John Deere
- Type of equipment: 4WD Wheeled Loader, Log Loader, Tool Carier
- Model: 544G, 624G, 644G
- Model: 544G, 624G, 644G
SKU: TM1530 | Covers: 544G, 624G, 644G Wheeled Loaders, 544G LL Log Loaders, 544G TC Tool Carriers
John Deere Service Repair Manuals
Table of Contents:
Introduction
General Information
- Safety Information
- General Specifications
- Torque Values
- Fuels and Lubricants
- Inspection Procedures
Wheels
- Powered Wheels and Fasteners
Axles and Suspension Systems
- Removal and Installation
- Axle Shafts, Bearings, and U‑Joints
- Hydraulic System
Transmission
- Removal and Installation
- Control Linkage
- Input Drive Shafts and U‑Joints
- Gears, Shafts, Bearings, and Power Shift Clutch
- Hydraulic System
Engine
- Removal and Installation
Engine Auxiliary Systems
- Cold Weather Starting Aids
- Cooling System
- Speed Controls
- Intake System
- External Fuel Supply System
Damper Drive
- Components
Steering System
- Secondary Steering
- Hydraulic System
Service Brakes
- Active Components
- Hydraulic System
Park Brake
- Active Components
- Hydraulic System
Equipment Attachment
- Drawbar
Electrical Systems
- Batteries, Supports, and Cables
- Alternator, Regulator, and Charging System Wiring
- Lighting System
- Wiring Harness and Switches
- Motors and Actuators
Frame or Supporting Structure
- Frame Installation
- Frame Bottom Guards
- Chassis Weights
Operator’s Station
- Removal and Installation
- Operator Enclosure
- Seat and Seat Belt
- Heating and Air Conditioning
Loader
- Bucket
- Frames
- Hydraulic System
Dealer‑Fabricated Tools
1. Factory Repair Procedures for Drivetrain, Hydraulics & Engine
This manual provides step-by-step removal, installation, and overhaul instructions for transmissions, axles, brakes, and hydraulic systems across all G-series 4WD loader variants.
1.1. Transmission & Axles – Rebuild with Correct Torque Values
The transmission section covers power shift clutch packs, gears, shafts, bearings, and control linkage. Every major fastener includes factory torque values to ensure proper clutch engagement and prevent premature bearing failure. Axle chapters detail U-joint replacement and shaft bearing preload settings.
Original Manufacturer Diagrams – Gear & Clutch Assembly
Original manufacturer diagrams show power shift clutch pack sequencing and input drive shaft alignment. Use these to verify thrust washer orientation and bearing race positions during transmission reassembly.
1.2. Hydraulic & Brake Systems – Circuits & Active Elements
Separate hydraulic system chapters for transmission, steering, service brakes, and park brake include component-level diagnostics and hydraulic circuit layouts.
Hydraulic Circuit Diagrams for Steering & Brakes
The steering system and secondary steering sections provide hydraulic circuit diagrams showing priority valve flow, metering pump connections, and brake accumulator charge circuits. Active elements (pistons, seals, springs) are called out for each hydraulic system.
