Hour / Biennial Service - Doosan DX700LC Operation And Maintenance Manual

4,000 HOUR / BIENNIAL
SERVICE
Major Parts - Periodic Replacement
To ensure safe operation and work, perform periodic
inspections. Also, to increase safety, replace the following parts.
These parts are the ones most often subjected to abrasion, heat
and fatigue. Exchange these parts with new ones at the
designated time intervals, even if the old parts look good.
Always replace all related parts such as gaskets and O-rings.
Use only original equipment manufacturers parts.
Major Component
Engine
Hydraulic Body
System
Work
Device
Inspection, Maintenance and Adjustment
4-58
Parts Name to be Exchanged Periodically
Fuel hose (Tank to fuel prefilter)
Fuel hose (Fuel prefilter to fuel cooler)
Fuel hose (Fuel cooler to ECU)
Fuel hose (ECU to engine CP pump)
Fuel hose (Tank to CP pump)
Heater hose (Heater to engine)
Heater hose (Heater to radiator)
Air Conditioner hose
Pump suction hose
Pump discharge hoses
Pump side branch hoses
Swing motor hoses
Travel motor hoses
Boom cylinder line hoses
Arm cylinder line hoses
Bucket cylinder line hoses
Time to Exchange
2 years or 4,000 hours
OP001123