Maintenance work on the carrier
7.11 Suspension
13.02.2018
Maintenance manual 3 302 719 en 7 - 73
GMK6300L-1
7.11.3 Forced lever – checking correct functioning
On suspension struts with forced levers, the forced levers must be checked
for proper functioning when the suspension is switched on and off.
• Start the engine.
• Lower the truck crane to the lowest level with the level
adjustment system;
à Manual de instrucciones.
• Switch off the suspension; à Manual de instrucciones.
The suspension struts and the forced levers (1) ar
e brought together.
• Raise the truck crane with the outriggers; à Manual de instrucciones.
• Switch on the suspension; à Manual de instrucciones.
• Check whether all suspension struts are extended and the forced
levers (1) are slackened.
If the suspension struts are not extended or only partially extended,
the
f
orced lever is faulty.
• Faulty forced levers should be replaced as soon as possible by Manitowoc
Crane Care
or an authorised GROVE dealer or your qualified repair crew.
G
Risk of crushing when releasing the suspension locking system.
When the suspension is switched on, the wheels drop down suddenly.
Ensure that nobody is in close proximity to the wheels when you switch
on the suspension.
S
Risk of damage to the tyres.
Remove sharp-edged or pointed objects from below the wheels before
swit
ching on the suspension.
In this way you prevent the tyres from bursting or being damaged when
the wheels come down.
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