Manitowoc Grove GMK 5200-1, Maintenance Manual

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Maintenance work on the superstructure
8.11 Hook blocks
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GMK5200-1
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The diagram gives an example of the arrange-
ment of the grease nipples (
1 ), ( 2 ) and ( 3 ) on a
hook block.
There are more grease nipples on the other
side.
•
Clean the grease nipples on all hook blocks
and grease them using a grease gun.
Checking the
fastenings The truck crane GMK5200-1 can be equipped with hook blocks that can be
separated .
The figure shows an example of the removable components on a hook
block.
Separable hook block
•
Check the separatable joints ( 1 ) for damage.
•
Check the bolts ( 2 ) and the retaining pins ( 3 )
for damage.
G
Risk of accidents due to non-secured hook block components
If the removable components of the bottom hook block are not properly
secured, then they can fall from a great height and fatally injure people dur-
ing crane operation.
Always check that the removable components are properly secured during
loading and before crane operation.