Method For Unlocking Parking Brake - Komatsu PW98MR-10 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
When bleeding the system, apply a small pipe to the screws, in order to collect the oil.
1.
Place the machine on a level ground, lower the work
equipment to the ground, then apply the brake.
2.
Loosen the bleed screw (1) until no more air is present in
the oil that flows out.
Use a 10 mm wrench.
3.
Tighten the bleed screw (1).
4.
Bleed the front and rear braking units one after the other,
following the same procedure.

METHOD FOR UNLOCKING PARKING BRAKE

In case of failure in the hydraulic system and before removing the machine, release the negative brake
installed on the rear axle.
The parking brake can be released by means of the negative brake installed on the rear axle, proceeding as
described below.
4-34
k k
WARNING
WENAM00061
MAINTENANCE