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MAINTENANCE
SERVICE PROCEDURE
CHECK FRAME
WARNING
When raising the dump body to inspect the machine, always place the dump lever at the HOLD position, apply the lock, and then
use the body pivot pins.
1.
Wash the frame to make it easier to check.
2.
Check all parts of the frame for damage.
In particular, check the colored portions in the diagram and if
any cracks or damage are found, repair the damage. Please
contact your Komatsu distributor for details of the repair
procedure.
CHECK BRAKING CAPACITY OF FOOT BRAKE
WARNING
If the machine moves, it will lead to serious injury or death. If machine begins to move during the inspection of braking capacity,
lower the engine speed immediately, set shifting lever at N position, and then set parking brake valve lever at PARKING position.
Check the braking capacity of the foot brake as follows.
1.
Set the air pressure to the maximum with the machine on flat
ground, and depress foot brake (1).
2. Set shift lever (2) to the D position, gradually raise the engine
speed, and check that the machine does not move even when
the engine speed reaches 1550 rpm.
3. Lower the engine speed, set shift lever at N position, and then
set parking brake valve lever at PARKING position. If any
abonormality is found, ask your Komatsu distributor for repair.
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