Operation and maintenance manual

Inspection, Maintenance and Adjustment
4-63
DX140R/DX140LCR
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.
Us
e only original equipment manufacturers parts.
Major Component Parts Name to be Exchanged Periodically Time to Exchange
Engine Fuel hose (Tank to fuel prefilter)
2 years or 4,000 hours
Fuel hose (Fuel prefilter to fuel cooler)
Fuel hose (Fuel cooler to ECU)
Fuel hose (Tank to CP pump)
Heater hose (Heater to engine)
Heater hose (Heater to radiator)
Air Conditioner hose
Hydraulic
Syst
em
Body P
ump suction hose
Pump discharge hoses
Pump side branch hoses
Swing motor hoses
Travel motor hoses
Work
De
vi
ce
Boom cylinder line hoses
Arm cylinder line hoses
Bucket cylinder line hoses