Komatsu ecot3 WA430-6 Operation & Maintenance Manual page 227

TROUBLESHOOTING TROUBLESHOOTING
2. Rotate lock plate (3) to release the lock, then tighten
adjustment screw (1) until it stops.
3. If this operation is carried out at the same time at A, B, and C,
the parking brake can be released.
EMERGENCY TRAVEL OPERATION
The normal gear shifting operation is carried out by electric signals. If there should be a failure in the electrical
system and the machine does not move, please contact your Komatsu distributor to have the machine moved.
NOTICE
Always request your Komatsu distributor to carry out the emergency travel operation.
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OPERATION OPERATION