Komatsu WA320-5H, Руководство по эксплуатации и техническому обслуживанию

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SERVICE PROCEDURE
MAINTENANCE
4-60
2. Depress the brake pedal, keep it depressed, and push in
the rod (2) of the gauge until contacts the piston.
3. Wear (A) is the amount that end face (C) of rod (2) is pro-
truding from end face (D) of guide (3). Measure the
amount of protrusion.
The point where groove (E) of the rod is level with end face
(D) of the guide is permissible limit (B) for the disc wear.
If this point has been reached, please ask your Komatsu
distributor to carry out inspection and replacement of the
parts.
q
If the disc is near the wear limit, carry out inspection at
shorter intervals, regardless of the specified inspection
interval.
4. Install cap nut (1).
Tightening torque: 29.4 to 39.2 N·m (3.0 to 4.0 kgf·m, 21.7
to 28.9 lbft)
REMARK
On new machines, the position of the guide is adjusted so that the end face of rod (2) comes to the end face of
guide (3). For this reason, do not loosen locknut (4) except when replacing the disc.
Carry out the operation with two workers: one worker depresses the brake pedal and the other worker pushes in
rod (2).
CLEAN AND CHECK TURBOCHARGER 4
If there is carbon or oil sludge stuck to the blower impeller, it will lower the performance of the turbocharger or
cause it to break, so ask your Komatsu distributor to carry out the cleaning.
CHECK ACCUMULATOR GAS PRESSURE 4
When carrying out the EVERY 2000 HOURS SERVICE or EVERY YEAR SERVICE or when making periodic
replacement of the critical safety parts, please ask your Komatsu distributor to check the accumulator gas pres-
sure.
CHECK VIBRATION DAMPER 4
Check that there are no cracks or peeling in the outside surface of the rubber.
If any cracks or peeling are found, contact your Komatsu distributor to have the parts replaced.