Malfunctions in driving mode
7.3 Towing the truck crane
7 - 8 3 112 993 en Operating manual GMK 6400
12.07.2013
Axle drives • Switch off all differential locks.
The green symbols (1) and (2) must be shown;
à Switching off, p. 5 - 59.
Parking brake
• Release the parking brake.
The lamp (1) must go out.
If the lamp (1) continues to light up, the supply pressure may be too low. Let
the engine of the truck crane or towing vehicle run on the compressed-air
supply until the supply pressure has been built up;
à Building supply pres-
sure
, p. 5 - 9.
If the lamp (1) fails to go out, the parking brake has been damaged; refer to
Manitowoc Crane Care.
G
Risk of accident by faulty brakes
If the service brake system has been damaged, you may only tow the truck
crane from the immediate danger area after consulting with Manitowoc
Crane Care.
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