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CRANE TROUBLESHOOTING
Problem(s)
Possible Cause(s)
Metal on
1.
metal sound
is heard.
2.
3.
Damage to
1.
crane's
2.
frame.
3.
Chain and
1.
hook
damaged.
2.
3.
Page 21
TRUCK MOUNT CRANE
Boom and post
rubbing together.
Base bearing
requires lubrication.
Boom extension
rubbing against
boom.
Cracks in frame.
Rust on frame's
components.
Bent post, boom or
boom extension.
Weight Capacity
of chain or hook
exceeded.
Metal fatigue
through regular use.
Hook improperly
attached to load.
Suggested Solution(s)
1.
Add grease to either side of boom and post
connection point.
Lubrication instructions for grease
2.
Follow
nipple.
3.
Grease outside of extension boom to reduce
friction.
When faced with a choice of replacing or
repairing a damaged component, it is better to
replace the component. There may be additional
damage that you are unable to see. Always have
a certified individual conduct repairs and tests to
the crane's structure.
1.
Exceeded weight capacity or metal fatigue
from regular use. Disassemble crane
and repair (weld) or replace damaged
components.
2.
Check if rust is only on the surface or if it
has penetrated the metal. Remove surface
rust and repaint section. When rust has
penetrated structure, repair or replace the
component.
3.
Exceeded weight capacity or impacted
against a structure. Replace the damaged
component. A straightened component may
still be weak and could fail.
1.
Replace with a hook and chain that has a
weight capacity that exceeds the crane's
maximum weight capacity rating.
2.
Replace with a similar hook and chain.
Replace hardware for hook and chain as
well.
3.
Replace the hook and chain. Follow
instructions for attaching the hook to the
Operations in future.
load in
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