5
• Loads may disengage from hook if proper procedures
are not followed.
• A falling load may cause serious injury or death.
• Hook must always support the load. The load must
never be supported by the latch.
• Read and understand these instructions before using hook.
IMPORTANT SAFETY INFORMATION –
READ AND FOLLOW
• A visual periodic inspection for cracks, nicks, wear,
gouges and deformation as part of a comprehensive
documented inspection program, should be
conducted by trained personnel in compliance with
the schedule in ANSI B30.10. Refer to ANSI B30.10 –
hooks for additional information.
• Never use a hook whose throat opening has been
increased, or whose tip has been bent more than 10
degrees out of plane from the hook body, or is in any
other way distorted or bent. Note: A latch will not
work properly on a hook with a bent or worn tip.
• Never use a hook that is worn beyond the limits
shown in Figure 1.
• Remove from service any hook with a crack, nick, or
gouge. Hooks with a nick or gouge shall be repaired
by trained personnel by grinding lengthwise,
following the contour of the hook, provided that the
reduced dimension is within the limits shown in
Figure 1. Contact Crosby Engineering to evaluate any
crack.
• Never repair, alter, rework, or reshape a hook by
welding, heating, burning, or bending.
• Never side load, back load, or tip load a hook.(Side
loading, back loading and tip loading are conditions
that damage and reduce the capacity of the hook).
(See Figure 2.)
• Always make sure the hook supports the load. (See
Figure 3). The latch must never support the load (See
Figure 4).
• When placing two (2) sling legs in hook, make sure
the angle from the vertical to the outermost leg is
not greater than 45 degrees, and the included angle
between the legs does not exceed 90 degrees (See
Figure 5). For two legged slings with angles greater
than 90 degrees, use an intermediate link such as a
master link or bolt type shackle to collect the legs of
the slings. The intermediate link can be placed over
the hook to provide an in-line load on the hook. This
approach must also be used when using slings with
three or more legs.
Figure 2
Side Load
WRONGBack Load
WRONGTip Load
WRONG
Figure 5
RIGHT
45º
45º
ZONE A: REPA IR NOT REQUIRED
ZONE B: 10% OF ORIGINAL DIMENSION
ZONE C: 5% OF ORIGINAL DIMENSION
ZONE: D: DO NOT REPAIR
Figure 1
ZONE B ZONE C
ZONE D
ZONE A
2/3
45º
45º
60º
Figure 3
RIGHT
Figure 4
WRONG
WARNING
CROSBY®HOIST HOOK
WARNING AND APPLICATION INSTRUCTIONS
Reprinted with Permission of the Crosby Group
