STT113 TOWER CRANE OPERATION AND SERVICE MANUAL
10B-6
c).
Check for broken rope.
d). Check for erosion on the wire rope.
e). Check for distortion caused by adding load suddenly.
3. Checking places around crown block and fixing points:
a) Check for damaged rope section and for abrasion section of wire rope which
winding through pulleys
b) Check for broken rope and for the erosions on the wire rope around its fixing
points. The same inspection should be made on the rope section near the
balancing pulley.
c). Check for distortion of rope.
d). Check the diameter of the wire rope.
Check places around traveling block
a) Check carefully on the section passing through the traveling pulleys, especially
the section around the pulleys while hoisting a load
b) Check for broken rope and surface abrasion
c). Check for erosion of rope.
Drum
Fixed
point
Fixed
pulley
Movable
block
Load
