. OPERATION TROUBLESHOOTING WHEN PARKING BRAKE HAS BEEN ACTUATED IN EMERGENCY follows. METHOD OF RELEASING PARKING BRAKE WARNING 1. Stop the engine. tow the machine see "METHOD OF 3 - 131 If the pressure i n the hydraulic circ uit goes d own ab normally becaus e of o il leakage or some othe r cause, the parking brake is autom It is necessary parking brake must Please ask yo ur Komatsu distribu tor to rel ease th e parking brake. If any problem occurs in the brake hydraulic system, there is a high probabili ty that the wheel brakes will not work properly, so when towi ng, always travel at lo w speed.
When releasi ng the parking brake, check tha t the su rrounding area is safe a nd always put blocks un der the wheels before starting. If th e wheels are not bloc ked, there is dang er that the machine may move suddenly. Always stop t he engine before star ting the o peration to release the parking br ake. 2. Put blocks under the wheels. 3. Turn parkin g brake adjustmen t screw ( 1) counterclockwise. 4. Check that there is a clearanc e betwee n the pa rking brake and disc br 5. When the parking brake i immediatel For details TOWING y to a safe position of the method MACHINE (PAGE 3 -128)".