Komatsu PC1250-11, Original Instructions Manual

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DEFINED LIFE PARTS LIST
No. Periodical replacement parts Replacement interval
1 Fuel system Fuel hose
Spill hose
Drain hose
Every 2 years or 4000 hours,
whichever comes sooner
2 Engine lubrication system Engine oil filter hose
3 Work equipment hydraulic
system Main pump delivery hose
Pump branch hose
Hydraulic drive fan hose (Intake fan)
Swing line hose
External work equipment hose
•
Boom foot connection hose
• Boom cylinder hose
• Arm cylinder hose
•
Arm connection hose
4 Others PPC accumulator
METHOD FOR CHECKING WATER PUMP
Check for leakage of water and oil around the water pump. If
any problem is found, ask your Komatsu distributor to perform
disassembly, repair, or replacement.
METHOD FOR CHECKING STARTING MOTOR
The brush may be worn and the grease in the bearings may have dried out.
Ask your Komatsu distributor for the inspection and repair.
METHOD FOR REPLACING ACCUMULATOR (FOR CONTROL CIRCUIT)
k k
WARNING
The accumulator is charged with high-pressure nitrogen gas, and improper operation may cause an ex-
plosion which will lead to serious injury or death. When handling, always observe the following.
• The pressure in the hydraulic circuit cannot be completely removed. When removing the hydraulic
equipment, do not stand in the direction that the oil spurts out when performing the operation. In
addition, loosen the bolts slowly when performing the work.
• Do not disassemble.
• Do not bring open flame close to it or do not dispose of it in fire.
• Do not perform drilling, welding or flame-cutting.
• Do not hit or roll it, or subject it to any impact.
• When disposing of it, the gas must be released. Ask your Komatsu distributor to have this work per-
formed.
MAINTENANCE MAINTENANCE PROCEDURE
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