Malfunctions in driving mode
7.7 Procedure in the event of malfunctions
7 - 40 3 112 xxx en Operating Manual GMK6300L
xx.xx.xxxx
 7.7.3             Malfunctions in the transmission
There are general transmission malfunctions and transmission malfunc-
tions with warning messages.
General 
malfunctions
When a general transmission malfunction occurs, only error codes are 
stored. 
Switching on diagnostics/oil-level gauge; 
à p. 3 - 50
H
Check regularly whether error codes have been stored, e.g. during mainte-
nance work; 
à p. 7 - 42. If necessary, inform Manitowoc Crane Care. This 
avoid situations where another small error could lead to transmission
failure.
Transmission 
malfunction
If a transmission malfunction is present, the 
Warning display shows the (1) 
or (2) symbol while the engine is running.
If a transmission malfunction occurs, proceed as follows:
Shift lock transmission
The transmission no longer switches. 
• Drive in the current gear until you reach the next safe place to stop, and 
stop the crane. 
H
Switch to neutral position only once you have reached a safe place to stop. 
You can then no longer select the gear positions D or R.