Hitachi Zaxis 330 / 330LC / 350H / 350LCH / 370MTH Excavator Workshop Manual (P/N W1HH-E-01)

• Covers 2005 Hitachi Zaxis 330, 330LC, 350H, 350LCH, and 370MTH hydraulic excavators, detailing maintenance and assembly procedures for upperstructure and undercarriage systems
• Official Hitachi Workshop Manual Vol. W1HH-E-01, published 2005
• Contains 752 pages including dozens of exploded-view diagrams, torque specifications, and system maintenance data
• This specific edition provides the precise torque values and assembly clearances required for the KM-1HH-E series excavators

Component and Assembly Documentation

Equipping your shop with accurate factory data is critical for heavy equipment maintenance. This 752-page workshop manual serves as the primary technical reference for Hitachi Zaxis 330, 330LC, 350H, 350LCH, and 370MTH models. It focuses heavily on upperstructure and undercarriage teardown and rebuild procedures. Mechanics will find specific data for the cab, counterweight, main frame, and pump devices. The sections are logically organized to assist technicians in handling complex hydraulic components like control valves, swing devices, and pilot valves.

When servicing heavy machinery, following proper factory safety protocols and verifying clearances before operation is crucial to prevent component failure or injury. Additional chapters document specific installation parameters, ensuring technicians apply the exact specifications for hydraulic circuits and pressure systems. Maintenance standards and factory painting color codes are also detailed to help restore units to OEM requirements.

Specification Highlights

Technical data includes comprehensive tightening torque charts for T, H, and M grade bolts, alongside specialized requirements for hydraulic hoses and piping. The pump device data confirms a total unit weight of 205 kg, with the main pump weight listed at 67 kg for lifting and service considerations. Counterweight mass is precisely documented at 6800 kg for 330-series units and 7550 kg for 350- and 370-series variants. As the authoritative reference for 2005 Zaxis models, it covers all structural assembly, hydraulic component integration, and technical specifications for the KM-1HH-E build.