USER
MANUAL
HC1151
U
SE
B.10
7845436-01 11/18
subject to change without notice
B.4.3
EMERGENCY CONTROLS ON COLUMN
In case of emergency or electrical fault, it is possible to activate the emergency controls in order to
move the crane and close it into transport position.
MA1
option
Winch rope winding
MJ2
option
Jib extension
MJ1
option
Jib articulation
MG4
Hydraulic extensions
MG3
2
nd
boom articulation
MG2
1
st
boom articulation
MG1
Column slewing
Follow the procedure below to bypass the dump valve and activate the emergency controls:
- remove the seal on the valve
- turn clockwise the screw B
After the dump valve is bypassed, all crane safety systems are disabled.