Manitowoc Grove GMK 4100L-1, Руководство по эксплуатации

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Malfunctions during crane operation
14.5 Emergency operations and programs
Operating manual 3 302 690 en 14 - 29
GMK4100L-1
2
3
.1
1.
201
7
Mechanical
emergency
activation The following requirements must be met before unlocking manually:
– The main boom must be lowered to the horizontal position so that the
telescopic 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 correspond-
ing telescopic section cannot be locked or unlocked manually.
There are two M8 bolts for every telescopic section:
You will need a suitable hexagon L-wrench ( 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 retrac-
tion. 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.
Telescopic
section:
I II III IV V VI
Length:
270 mm
(10.6 in)
230 mm
(9.1 in)
200 mm
(7.9 in)
170 mm
(6.7 in)
135 mm
(5.3 in)
120 mm
(4.7 in)