Rigging work
12.6 Outriggers
12 - 52 3 112 993 en Operating manual GMK 6400
12.07.2013
Manual alignment • Check that the prerequisites are met; à p. 12 - 51
• Extend all supporting cylinders until none of the wheels is touching the
ground.
• Level the truck crane with the supporting cylinders horizontally until the
lamp (1) is the only one lighting up in the measuring range 1°;
à p. 12 - 45.
• Only lift the truck crane as far as necessary.
Checks to be performed after levelling
During levelling, the ground may give way and the packing may slip.
• Check after you have levelled the truck crane:
– Whether all the wheels are lifted off the ground
– Whether the ground under one of the outrigger pads has given way
– Whether the packing is correct for the enlarged ground bearing area
If slewing is permissible in the current rigging mode:
• Slew the superstructure within the permissible slewing range
• Perform the specified checks again
• Check the horizontal alignment on the inclination indicator
G
Risk of accident due to incorrectly supported truck crane
Perform the following checks each time you have levelled the truck crane
and correct any misalignments.
Otherwise the truck crane may overturn even when lifting a load released
by the RCL.
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