Malfunctions during crane operation
14.4 Troubleshooting
14 - 36 3 112 993 en Operating manual GMK 6400
12.07.2013
Lamp display
The lamps (A) to (F) display the operating con-
dition and are used for troubleshooting.
Each lamp can show four different functions.
• Observe the functions of the lamps and forward the information to
Manitowoc Crane Care if necessary.
A TCU display
B GPS display
C GSM display
D Satellite display
E Can bus display
F GSM or satellite display
–On: Lamp lights up
– Off: Lamp goes out
– Quick flash: Flashes four times per second
–Slow flash: Flashes once per second