Manitowoc Grove GMK 4100L-1, Operating Manual

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Driving
5.1 Before driving
Operating manual 3 302 690 en 5 - 17
GMK4100L-1
2
3
.1
1.
201
7
Switching the
suspension on The suspension cylinders are enabled when the suspension is switched on.
This state must be established for on-road driving.
•
Select and confirm the symbol ( 1 ).
When the suspension is switched on, the symbol ( 2 ) is green .
If the ( 2 ) symbol stays red , the supply pressure may be too low. In this case
the suspension would only be switched on if sufficient supply pressure is
built up;
à
Building up supply pressure
, p. 5 - 10.
Switching the
suspension off When the suspension is switched off, the suspension cylinders are locked.
This state is intended only for crane operation.
•
Select and confirm the symbol ( 1 ).
When the suspension is switched off, the symbol ( 2 ) is red .
G
Danger of overturning when switching on the suspension
Do not switch the suspension on unless the truck crane has been rigged for
on-road driving and the main boom has been set down.
If the rigged truck crane was standing on its wheels the suspension struts
will be suddenly pushed together when the suspension was switched on,
causing them to be damaged and possibly causing the truck crane to over-
turn.
S
Risk of damage to the axle lines
Always switch the suspension on for on-road driving.
The axle lines may become damaged and the steering behaviour may
change if the suspension is switched off.