Swing-away lattice
3.4 Description of the rigging work
Lattice extension operating instructions 3 112 441 en 3 - 33
GMK 4100/4100-L/5095
11.01.2008
3.4.3 Checking the locking device on the hose drum
H
This section only applies to the derricking swing-away lattice.
The hydraulic supply is provided via a hose drum on the side of the main
boom. The hose drum is equipped with a locking device.
The locking device must be undone for operation with the swing-away lattice.
If the hose drum has to be removed, you must first insert the locking device.
Bores (1) are distributed along the inner
flanged wheel of the hose drum. The hose
drum is secured against turning by turning the
spring latch (2) in the bore.
Releasing the locking device
• Turn the spring latch (2) to position A.
The spring latch is not inserted in any of the
bores (1).
Engaging the locking device
• Turn the hose drum until one of the bores is
in front of the spring latch (2).
• Turn the spring latch (2) to position B. The
spring latch is inserted in one of the bores (1).
S
Risk of damage to the hydraulic hoses
Always check whether the locking device is undone before beginning oper-
ation with the lattice extension.
This will prevent the hydraulic hoses from tearing during the telescoping
procedure.
G
Risk of accidents due to the hose drum turning in an uncontrolled manner
The locking device must always be engaged before the hose drum is
removed. Otherwise, the hose drum will turn in an uncontrolled manner
against the holder and could injure you.
1
2
B
A
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