John Deere 644C, 646C Compactor Repair Technical Manual (TM1229)
The John Deere 644C Loader and 646C Compactor Technical Manual (TM1229) offers comprehensive, factory-provided repair and troubleshooting instructions. It includes thorough specifications, hydraulic systems, electrical diagrams, and component disassembly guidance for extensive maintenance tasks.
- Manual Included:
- Technical Manual: 1378 Pages
- Specifications:
- Brand: John Deere
- Model: 644C, 646C
- Type: Compactor
- Manuals: Repair Technical Manual
- Publication Numbers: TM1229
- Language: English
- Format: PDF

John Deere Service Repair Manual
644C, 646C John Deere Repair Technical Manual (TM1229)
Table of Contents
GENERAL INFORMATION
- Introduction and Safety Information
- General Specifications
- Torque Values
- Fuels and Lubricants
WHEELS
- Powered Wheels and Fasteners
AXLES AND SUSPENSION SYSTEMS
- Removal and Installation
- Differential or Bevel Drive
- Input Drive Shafts and U‑Joints
- Axle Shafts, Bearings, and Reduction Gears
- Hydraulic Systems
TRANSMISSION
- Removal and Installation
- Control Systems
- Input Drive Shafts and U‑Joints
- Gears, Shafts, Bearings, and Power Shift Clutch
- Hydraulic System
ENGINE
- Engine Removal and Installation
- Crankshaft and Main Bearings
- Camshaft and Valve Train Components
- Connecting Rods and Pistons
- Cylinder Block
- Lubrication System
- Crankcase Ventilation System
- Cylinder Head and Valves
- Exhaust Manifold
- Fuel Injection System
- Intake Manifold
- Turbocharger
- Water Pump
- Thermostats, Housings, and Piping
- Oil Cooler
- Fuel Filter
- Starter Motor and Mountings
- Fan Drive
- Flywheel, Housing, and Fasteners
ENGINE AUXILIARY SYSTEMS
- Cold Weather Starting Aids
- Cooling Systems
- Speed Controls
- Intake System
- External Exhaust Systems
- Mounting Frame
- External Fuel Supply Systems
TORQUE CONVERTER
- Turbine, Gears, Shafts, and Bearings
STEERING SYSTEM
- Emergency Steering
- Hydraulic System
SERVICE BRAKES
- Active Components
- Control Linkage
- Hydraulic System
PARKING AND EMERGENCY BRAKES
- Active Components
- Control Linkage
ELECTRICAL SYSTEMS
- Batteries, Supports, and Cables
- Alternator, Regulator, and Charging System Wiring
- Lighting System
- Wiring Harness and Switches
- System Controls
- Instruments and Indicators
FRAME, CHASSIS, 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
SHEET METAL AND STYLING
- Hood or Engine Enclosure
- Grille and Grille Housing
- Fenders
SAFETY, CONVENIENCE, AND MISCELLANEOUS FEATURES
- Mirrors
- Fire Extinguisher
- Horn and Warning Devices
- Cigar Lighter
MAIN HYDRAULIC SYSTEM
- Hydraulic System Overview
LOADER ATTACHMENT
- Buckets
- Control Linkage
- Frames
- Hydraulic System
SYSTEM TESTING
- General Information – Seven Basic Steps of Diagnosis and Testing
- Engine Testing
- Electrical System Testing
- Powertrain Testing
- Hydraulic System Testing
- Heating and Air Conditioning Testing
SPECIAL TOOLS
INDEX




