Harrington Hoists and Cranes LB Lever Hoist - (L5) - Manual (Page 25)

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Table 5-3 Hoist Inspection Methods and Criteria
Item Method Criteria Action
Top Pin –
Deformation
Visual, Measure The pin should be free of scars or significant
deformation. The "d" dimension should not be less
than discard value listed in Table 5-11.
Replace
Yoke – Top Pin Hole
Deformation
Visual, Measure The "d" dimension of the top pin hole should not be
greater than the discard value listed in Table 5-12.
Replace Hook Set
Yoke – Chain Pin
Hole Deformation
Measure The "d" dimension of the chain pin hole should not
be greater than the discard value listed in Table 5-
12. Replace Hook Set
or yoke.
Load Chain -
Surface Condition Visual Should be free of gouges, nicks, dents, weld splatter
and corrosion. Links should not be deformed, and
should not show signs of abrasion. Surfaces where
links bear on one another should be free of
significant wear. Replace.
Load Chain - Pitch
and Wire Diameter Measure The "P" dimension should not be greater than
discard value listed in Table 5-13. The "d"
dimension should not be less than discard value
listed in Table 5-13. Replace. Inspect
Load Sheave (and
Idle Sheave for
multiple fall hoists).
Load Chain -
Lubrication Visual, Auditory Entire surface of each chain link should be coated
with lubricant and should be free of dirt and grime.
Chain should not emit cracking noise when hoisting
a load. Clean/lubricate
(see Section 6.0).
Load Chain -
Reeving Visual Chain should be reeved properly through Load
Sheave. Refer to Section 6.4. On multiple fall
hoists chain should be installed properly and free of
twists. Refer to Section 3.1. Reeve/Install chain
properly.
Chain Pin -
Deformation Visual, Measure The pin should be free of scars or significant
deformation. The "d" dimension should not be less
than discard value listed in Table 5-14.
Replace
Housing and
Mechanical
Components Visual, Auditory,
Function Hoist components including load blocks, suspension
housing, chain attachments, clevises, yokes,
suspension bolts, shafts, gears, bearings, pins and
rollers should be free of cracks, distortion, significant
wear and corrosion. Evidence of same can be
detected visually or via detection of unusual sounds
during operation. Replace.
Bolts, Nuts and
Rivets Visual, Check
with Proper Tool Bolts, nuts and rivets should not be loose, deformed
or corroded. Tighten or replace
as required.
Load Sheave Visual Pockets of Load Sheave should be clean and free of
significant wear. Replace.
Warning Labels Visual Warning Labels should be affixed to the hoist (see
Section 1.2) and they should be legible. Replace.
Hoist Capacity Label Visual The label that indicates the capacity of the hoist
should be legible and securely attached to the hoist. Replace.