Malfunctions in driving mode
7.8 Procedure during malfunctions
Operating manual GMK 6400 3 112 993 en 7 - 39
12.07.2013
7.8 Procedure during malfunctions
7.8.1 Switching on emergency operation in coolant circuit
For cooling purposes, the fan wheel of the engine is switched on and off
automatically. When this automatic system fails, you can switch on emer-
gency operation so that the fan wheel always runs when the engine is
switched on.
• Switch off the engine and secure against unauthorised use – lock the
hand-held control in the driver's cab and the doors.
Emergency operation is switched on at the fan
wheel's hub.
• Remove the bolts (1).
• Turn the metal plate (2) and remove it.
• Press in the pin under the metal plate.
• Emergency operation is switched on and the
fan wheel runs continuously as long as the
engine is switched on.
With a blocked fan wheel, you may only drive
up to 1000 km (620 mi).
G
Risk of accident by turning fan wheel
Always switch off the engine and secure it against unauthorised start
before switching on emergency operation.
This prevents the fan wheel from turning suddenly and injuring you.
G
Risk of burns when engine is hot!
During operation, the engine and the add-on parts heat up greatly.
Wear appropriate protective gloves and be careful not to touch hot parts.
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