DX380LC-7
Inspection, Maintenance and Adjustment
4-82
4,000 Hour / Biennial Service
Major Parts - Periodic Replacement
For proper operation and work, perform periodic inspections.
These parts are those most often subjected to abrasion, heat
and fatigue. Replace these parts with new ones at the
designated time intervals, even if the old parts look satisfactory.
Replace all related parts such as gaskets and O-rings with
original equipment manufacturer’s parts.
Major Component
Parts Name to be Replaced Periodically
Time to Replace
Engine
Fuel Hose (Tank to Pre Fuel Filter)
2 years or 4,000 hours
Fuel Hose (Pre Fuel Filter to CP Pump)
Fuel Hose (CP Pump to Main Fuel Filter)
Fuel Hose (Main Fuel Filter to CP Pump)
Fuel Hose (CP Pump to Tank)
Fuel Hose (Tank to Drain Valve)
Heater Hose (Heater to Engine)
Heater Hose (Heater to Radiator)
Air Conditioner Hose
Hydraulic
System
Body
Pump Suction Hose
Pump Discharge Hoses
Pump Side Branch Hoses
Swing Motor Hoses
Travel Motor Hoses
Work
Device
Boom Cylinder Line Hoses
Arm Cylinder Line Hoses
Bucket Cylinder Line Hoses