Table 5-3 Hoist Inspection Methods and Criteria

Item

Method

Discard Limit/Criteria

Action

 

 

 

 

Hooks – Yoke

Visual

Should be free of significant rust, weld splatter,

Tighten or replace

Assembly

 

nicks, and gouges. Holes should not be elongated,

as required.

 

 

fasteners should not be loose, and there should be

 

 

 

no gap between mating parts.

 

 

 

 

 

Hooks – Idle Sheave

Visual, Function

Pockets of Idle Sheave should be free of significant

Clean/lubricate, or

and Shaft (Multiple

 

wear. Idle Sheave surfaces should be free of nicks,

replace as required.

Fall Hoist)

 

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.

 

 

 

 

 

Hooks – Hook

Visual, Function

Latch should not be deformed. Attachment of latch

Replace.

Latches

 

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.

 

Yoke – Top Pin Hole

Visual, Measure

The "d" dimension of the top pin hole should not be

Replace Hook Set

Deformation

 

greater than the discard value listed in Table 5-5.

 

 

 

 

 

Top Pin –

Visual, Measure

The pin should be free of scars or significant

Replace

Deformation

 

deformation. The “d" dimension should not be less

 

 

 

than discard value listed in Table 5-6.

 

 

 

 

 

Yoke – Chain Pin

Measure

The "d" dimension of the chain pin hole should not

Replace Hook Set

Hole Deformation

 

be greater than the discard value listed in Table 5-5.

or yoke.

Chain Pin –

Visual, Measure

The pin should be free of scars or significant

Replace

Deformation

 

deformation. The “d" dimension should not be less

 

 

 

than discard value listed in Table 5-7.

 

Load Chain – Pitch

Measure

The "P" dimension should not be greater than

Replace. Inspect

and Wire Diameter

 

discard value listed in Table 5-8. The "d" dimension

Load Sheave (and

 

 

should not be less than discard value listed in Table

Idle Sheave for

 

 

5-8.

multiple fall hoists).

 

 

 

 

Load Chain –

Visual

Should be free of gouges, nicks, dents, weld

Replace.

Surface Condition

 

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.

 

Load Chain –

Visual, Auditory

Entire surface of each chain link should be coated

Clean/lubricate (see

Lubrication

 

with lubricant and should be free of dirt and grime.

Section 6.0).

 

 

Chain should not emit cracking noise when hoisting

 

 

 

a load.

 

Load Chain –

Visual

Chain should be reeved properly through Load

Reeve/Install chain

Reeving

 

Sheave. On multiple fall hoists chain should be

properly.

 

 

installed properly and free of twists. Refer to

 

 

 

Section 3.1.

 

Lifting System –

Visual, Function

Components should not be deformed, scarred, or

Replace.

Components

 

show significant wear.

 

 

 

 

 

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