SCORPIO 38’ - 45’ - MAINTENANCE & SERVICE - General Maintenance
Version 1.02 May 27, 2022
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6.2.4 INSIDE TELESCOPIC RAILS AND ROLLERS
Inside every section there are rollers and rails to move the
telescopic sections. To clean them, open all the covers of the crane
in order to have access to these rails and then apply degreaser in a
rag and clean all the dirty grease along the rails.
Once the rails are clean, use a brush to apply a small amount of
regular grease along the top rails and the bottom rails.
In case there is a noise when the weights of the telescopic sections
pivot, the bottom rear wheels can be adjusted to minimize this noise.
To do it, Loose the screws holding the axis of the roller and use a
small Allen key to pivot the axis into the proper position. These rollers
need to be movable by hand when the crane is fully extended.
6.2.5 COUNTERWEIGHTS SQUARE BEARINGS
There are 4 square bearings holding the counterweights support.
Each of these bearings have 2 greasing points, one on each side of
it. These bearings grease by themselves and will expel the excess of
grease on them. The excess of grease needs to be cleaned using a
rag to prevent that the dust or other particles interfere with the proper
function of these bearings.
To grease them, use a greasing gun filled with regular grease.
Grease them until they start expelling the excess of grease.
6.2.6 COUNTERWEIGHT CABLES
There are 12 counterweight cables holding the counterweight trolley.
Each of these cables have 2 ends: one in the counterweight trolley
and the other one in the first section. To tight these cables always put
the crane in the horizontal position and extend it until there is access
to the top cables in the first section (fig. 06.06).
Remove the locknut using the fix wrench provided with crane and
tight them from the part of the first section using a vice grip to hold the
cable and a wrench to move the nut. Apply tension to all the cables
equally in order to not change the position of the counterweights
respect the first section.
Once the cables are tight, check both magnetic limits of the crane to
verify that the position of the counterweight trolley have not change.
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