Driving modes and rigging for on-road driving
6.4 Rigging the main boom
6 - 32 3 302 709 en Operating manual
GMK5150L
12.01.2018
Fitting the head pin
• (A) – Turn the switch (1) to the Plug
position
â.
• (B) – Insert the lever into the clamp (2).
• Pump until the head pin (3) is inserted as far
as possible.
Securing the head pin
• (C) – Fasten the disc with the bolt (4).
• Stow away the lever and the lifting device so
that it is safe to drive on the road.
6.4.8 Extending/retracting the boom pivot pin
Pulling out the
pivot pin
Before pulling out, you must switch the hydraulic circuit over and the pivot
pins must be released.
S
Risk of damage to the bearings in the derricking cylinder head
Make sure that the bearings in the derricking cylinder are aligned with the
head pin before fitting the head pin.
This prevents the head pin from damaging the bearing.
G
Risk of accidents due to the main boom falling down!
The pulling device secures the main boom pivot pin in the installation
position.
Do not remove the pulling device for the main boom pivot pin. By leaving
it in place you avoid the possibility that the main boom pivot pin can be
pushed out whilst the crane is in operation, whereupon the main boom
would crash down.
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