Method For Checking For Looseness Of Engine High-Pressure Piping Clamp, Hard- Ening Of Rubber - Komatsu PC290LC-11 Operation & Maintenance Manual

MAINTENANCE
If any abnormality is found, ask your Komatsu distributor to have the parts disassembled, repaired, or re-
placed.
METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIP-
ING CLAMP, HARDENING OF RUBBER
Check visually and touch by hand to check that there is no hardening of the rubber and no loose bolts of the
mounting clamps (2 places) for the high-pressure piping between the supply pump and the common rail.
Replacement of the high-pressure piping must be made as an assembly.
If there are any problems, the parts must be replaced. Ask your Komatsu distributor for replacement.
METHOD FOR CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP,
HARDENING OF RUBBER
The fuel spray prevention caps on the fuel injection piping and both ends of the high-pressure piping act to pre-
vent the fuel from coming into contact with high-temperature parts of the engine and causing a fire if the fuel
should leak or spray out.
Check fuel spray prevention caps (14 places) visually or with a finger to see if any of them has fell off, or the
rubber portion is hardened.
MAINTENANCE PROCEDURE
4-75