Table
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 |
|
|
|
|
|
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 |
|
|
|
|
|
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 | 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 |
|
Load Chain – Pitch | Measure | The "P" dimension should not be greater than | Replace. Inspect |
and Wire Diameter |
| discard value listed in Table | Load Sheave (and |
|
| should not be less than discard value listed in Table | Idle Sheave for |
|
| 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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