Malfunctions during crane operation
14.5 Emergency operations and programs
Operating manual 3 302 819 en 14 - 31
GMK3060
13.12.2018
Mechanical emer-
gency activation
The following requirements must be met before manually unlocking a lock:
– The main boom must be lowered to the horizontal position so that the tele-
scopic section cannot retract by itself.
or
– The telescopic section to be unlocked is secured against retracting by itself by
using an auxiliary crane. Telescoping is done with the auxiliary crane.
H
If the telescoping cylinder is positioned at a locking point, the corresponding tel-
escopic section cannot be locked or unlocked manually.
There are two bolts for every telescopic section.
– M8 x 140 for telescopic sections
I to IV
– M8 x 125 for telescopic section V
These bolts are in the toolbox supplied with the crane.
You will need a suitable tool (3), at least 250 mm
(9.8 in) long.
In order to unlock the telescopic section, screw
the bolts (4) into the bores (1) in the locking pins.
Pins located further inside are reached through
the bores (2).
s
G
Risk of accidents due to sudden retraction of a telescopic section!
Before unlocking the telescopic section, secure it against automatic retraction.
This prevents the retracting telescopic section severing one of your limbs or the
truck crane being damaged or overturned by the telescopic section suddenly
retracting.
To Next Page
Loading...
Need help?
General
