Table 5-3 Hoist Inspection Methods and Criteria (continued)
Item | Method | Criteria | Action |
|
|
|
|
Hooks - Bent Shank | Visual | Shank and neck portions of hook should be free | Replace. |
or Neck |
| of deformations |
|
Hooks - Yoke | Visual | Should be free of significant rust, weld splatter, | Clean/Lubricate, or |
Assembly |
| nicks, gouges. Holes should not be elongated, | replace as required. |
|
| fasteners should not be loose, and there should |
|
|
| be no gap between mating parts. |
|
Hooks - Swivel | Visual, Function | Bearing parts and surfaces should not show | Clean/lubricate, or |
Bearing |
| significant wear, and should be free of dirt, grime | replace as required. |
|
| and deformations. Hook should rotate freely with |
|
|
| no roughness. |
|
Hooks - Idle Sheave | Visual, Function | Pockets of Idle Sheave should be free of | Clean/lubricate, or |
and Axle (Bottom |
| significant wear. Idle Sheave surfaces should be | replace as required. |
Hook on Double Fall |
| free of nicks, gouges, dirt and grime. Bearing |
|
Hoist) |
| 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 | Replace. |
Latches |
| 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. |
|
|
|
|
|
Load Chain - | Visual | Should be free of rust, nicks, gouges, dents, and | Replace. |
Surface Condition |
| 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. |
|
|
|
|
|
Load Chain - Pitch | Measure | The “L” dimension should not be greater than | Replace, inspect |
|
| maximum value listed in Table | Load Sheave (and |
|
|
| Idle Sheave for |
|
|
| double fall hoist). |
|
|
|
|
Load Chain - | Visual, Auditory | Entire surface of each chain link should be coated | Clean/lubricate |
Lubrication |
| with lubricant and should be free of dirt and grime. | (see Sections 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 (and Idle Sheave for double fall hoist) - | properly. |
|
| refer to Section 3.11. Chain, limit locks and |
|
|
| stoppers should be installed properly - refer to |
|
|
| Section 7.3.2. |
|
Bolts, Nuts and | Visual, Check | Bolts, nuts and rivets should not be loose. | Tighten or replace |
Rivets | with Proper Tool |
| as required. |
|
|
|
|
27