BOOM RT9130E SERVICE MANUAL
4-54 Published 08-25-09, Control # 077-04
HOOK BLOCK
Description
A 118 metric ton (130 ton) hook block, a 72 metric ton (80
ton) hook block, and a 9 metric ton (10 ton) top swivel
overhaul ball is available for the crane. The hook blocks
utilizes a one-piece pivot block and the hook is equipped with
a safety latch. Both hook blocks are the quick reeve design.
Maintenance
Periodic Maintenance
It is recommended that the hook block and/or headache ball
be inspected every 50 hours. A complete disassembly
inspection should be conducted every quarter or 500 hours
in the area of the hook, hex nut, and threaded areas for
corrosion and proper fit. After assembly of the hook, a liberal
coating of multipurpose grease should be applied to the nut
and threaded areas by brush or hand to prevent corrosion.
For hook blocks and other load handling devices not
manufactured by Grove; follow the manufacturer’s
inspection and testing recommendations to assure an
adequate preventative maintenance program is established.
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