John Deere 330LC and 370 Excavator Repair Technical Manual (TM1670)

John Deere 330LC and 370 Excavator Repair Technical Manual (TM1670 03FEB09)

This repair technical manual is an essential resource for service professionals and operators working on John Deere 330LC and 370 Excavators. Covering engine diagnostics, hydraulic system repairs, powertrain maintenance, and electrical troubleshooting, this guide provides step-by-step instructions to ensure precise servicing and machine longevity. Detailed schematics, torque specifications, and component disassembly guides make it an indispensable tool for repair and maintenance.

Model Covers:

• John Deere 330LC Excavator
• John Deere 370 Excavator

File Format: PDF

Size: 13.73 MB

No. of pages: 736

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Table of Contents Overview:

Safety and General Maintenance

• Following safe procedures during repairs and inspections
• Preventing fire hazards and handling high-pressure fluids
• Proper battery maintenance to avoid explosions
• Handling chemical products and avoiding acid burns
• Correct machine parking and stabilization during servicing

Tracks and Undercarriage System

• Track roller servicing and wear measurement
• Track chain maintenance, removal, and installation
• Track adjuster cylinder and recoil spring inspection
• Front idler, sprocket, and metal face seal servicing
• Track sag adjustment and overall undercarriage maintenance

Hydraulic System and Testing

• Hydraulic oil cleanup procedures and contamination control
• Hydraulic pump disassembly, testing, and reinstallation
• Control valve operations and flow regulation adjustments
• Hydraulic cylinder servicing and pressure relief valve testing
• Rotary manifold maintenance and hydraulic swing system repairs

Engine and Cooling System

• PowerTech® 8.1L (6081) John Deere engine specifications
• Fuel injection system troubleshooting and servicing
• Water pump removal, thermostat maintenance, and coolant system flushing
• Turbocharger performance analysis and exhaust management
• Engine valve clearance adjustments and crankcase ventilation servicing

Electrical System and Controls

• Battery testing, maintenance, and safety handling
• Starter motor and alternator troubleshooting
• Wiring schematics and switch panel diagnostics
• ECU configurations and monitor controller servicing
• Fuse panel, relay locations, and circuit testing

Operator's Cab and Comfort Features

• Cab removal, installation, and safety inspections
• Seat adjustments, seatbelt servicing, and emergency exits
• Air conditioning refrigerant handling and system diagnostics
• Blower motor maintenance and ventilation system calibration
• Heater core servicing and climate control troubleshooting

Swing, Boom, and Arm Systems

• Swing motor brake and gearcase servicing
• Boom and arm pin lubrication and wear analysis
• Bucket linkage adjustments and pivot end play corrections
• Hydraulic actuation tests and bucket force optimization
• Structural integrity checks and component replacements

Technical Specifications

• Excavator weight, lifting capacity, and hydraulic pressure ratings
• Torque values for bolts, fittings, and mechanical components
• Hydraulic fluid types, refill capacities, and maintenance intervals
• SAE and metric conversion charts for calibration and servicing
• Cycle time evaluations for boom, arm, and bucket operations

For complete service information, also see:

330LC and 370 Excavator Operation and Tests .......... TM1669
PowerTech 8.1L (6081) Engine .......... CTM86
PowerTech 8.1L (6081) Engine Operation and Diagnostics .......... CTM134
Alternators and Starting Motors .......... CTM77
Undercarriage Appraisal Manual .......... SP326

This John Deere 330LC and 370 Excavator Repair Technical Manual is an invaluable reference for service technicians, offering precise troubleshooting methods, repair procedures, and maintenance strategies to ensure optimal performance and durability.