Harrington Hoists and Cranes TCS Hoist - Manual (Page 30)

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Table 5-3 Hoist Inspection Methods and Criteria (continued)
Item Method Criteria Action
Hooks - Bent Shank
or Neck Visual Shank and neck portions of hook should be free
of deformations Replace.
Hooks - Yoke
Assembly Visual Should be free of significant rust, weld splatter,
nicks, gouges. Holes should not be elongated,
fasteners should not be loose, and there should
be no gap between mating parts. Clean/Lubricate, or
replace as required.
Hooks - Swivel
Bearing Visual, Function Bearing parts and surfaces should not show
significant wear, and should be free of dirt, grime
and deformations. Hook should rotate freely with
no roughness. Clean/lubricate, or
replace as required.
Hooks - Idle Sheave
and Axle (Bottom
Hook on Double Fall
Hoist) Visual, Function Pockets of Idle Sheave should be free of
significant wear. Idle Sheave surfaces should be
free of nicks, gouges, dirt and grime. Bearing
parts and surfaces of Idle Sheave and Axle
should not show significant wear. Idle Sheave
should rotate freely with no roughness or
significant free play. Clean/lubricate, or
replace as required.
Hooks - Hook
Latches Visual, Function Latch should not be deformed. Attachment of
latch to hook should not be loose. Latch spring
should not be missing and should not be weak.
Latch movement should not be stiff - when
depressed and released latch should snap
smartly to its closed position. Replace.
Load Chain -
Surface Condition Visual Should be free of rust, nicks, gouges, dents, and
weld splatter. 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 5-7 . The “d"
dimension should not be less than discard value
listed in
Table 5-7 .
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
Sections 6.0 ).
Load Chain -
Reeving Visual Chain should be reeved properly through Load
Sheave (and Idle Sheave for double fall hoist) -
refer to
Section 3.12 . Chain should be installed
properly - refer to Section 7.2 .
Reeve/Install chain
properly.
Chain Spring - Visual Chain springs should not be deformed or
compressed. Replace
Bolts, Nuts and
Rivets Visual, Check
with Proper Tool Bolts, nuts and rivets should not be loose. Tighten or replace
as required.