John Deere 330LC, 370 Excavator – Operation & Test Service Manual – TM1669. This manual provides detailed information for testing, diagnosing, and adjusting the major systems of these John Deere excavator models, including engine performance testing, hydraulic system diagnostics, powertrain testing procedures, swing and travel system checks, electrical system diagnostics, and operational performance evaluations. Includes comprehensive testing procedures, diagnostic guidelines, operational checks, specifications, system adjustments, troubleshooting methods, and numerous factory illustrations-exactly as used in authorized John Deere service departments. Unbound, pre-drilled, and ready for a standard 3-ring binder (binder not included) – ideal for heavy equipment repair shops, field service technicians, construction equipment mechanics, fleet maintenance facilities, and advanced owner-operators. Printed in large 8.5″ × 11″ format for superior readability and long-term durability. Professionally printed in high resolution for superior readability. Pre-punched with 3 holes, ready for a standard three-ring binder. Printed on durable paper. Complete manual with 750 pages. John Deere 330LC Excavator John Deere 370 Excavator. Manual Type: Operation & Test Service Manual Manual Number: TM1669 Language: English Format: Printed manual, unbound & pre-drilled (binder-ready, binder not included) Page Size: 8.5″ × 11″ Condition: Brand New.