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2. Measure hook depth at load bearing point (base, bowl, or saddle) of the hook. Hook must
be replaced when wear at load bearing point is 10% of the original depth of the hook load
bearing point.
3. Any bend or twist of the hook from the plane of the unbent hook requires replacement of
the hook.
4. A hook latch, when required, that is missing shall be replaced.
5. A hook latch, when required, that is inoperative shall be repaired or replaced.
6. A hook with a hook latch that does not close the throat opening of the hook shall be
removed from service or moused until the latch is replaced or repaired.
7. Hooks having damage from chemicals, corrosion, or deformation shall be repaired or
replaced. Damage in the form of cracks, nicks, and gouges may be repaired by
a designated person by grinding longitudinally, following the contour of the hook, provided
no dimension of the hook is reduced by more than 10% of the original dimension of a
new hook. If the repair reduces the dimension of the hook by more than 10% of the
original dimension of a new hook, the hook shall be replaced.
ANY HOOK THAT REQUIRES REPLACEMENT BECAUSE OF EXCESSIVE BENDS,
TWISTS, OR THROAT OPENING INDICATES ABUSE OR OVERLOADING OF THE HOIST.
THEREFORE, OTHER LOAD-SUPPORTING COMPONENTS OF THE HOIST SHOULD BE
INSPECTED FOR POSSIBLE DAMAGE WHEN SUCH CONDITIONS ARE FOUND.
NEVER REPAIR HOOKS BY WELDING OR RESHAPING. HEAT APPLIED TO THE HOOK
WILL ALTER THE ORIGINAL HEAT TREATMENT OF THE HOOK MATERIAL AND REDUCE
THE STRENGTH OF THE HOOK.
NEVER WELD HANDLES OR OTHER ATTACHMENTS TO THE HOOK. HEAT APPLIED TO
THE HOOK WILL ALTER THE ORIGINAL HEAT TREATMENT OF THE HOOK MATERIAL
AND REDUCE THE STRENGTH OF THE HOOK.
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