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STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

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Hoisting System 545<br />

Wear and crocks<br />

Sheave groove wear<br />

Sheave wobble<br />

Crocks ond deformation<br />

Loose fostners<br />

Wear and crocks<br />

Wear and crack<br />

MAINTENANCE:<br />

1. Keep clean.<br />

2. Lubricate bearings.<br />

3. Remove any rust and weather protect as required.<br />

4. Check and secure all fasteners.<br />

Figure 4-20. Traveling block [lo].<br />

Reduction of<br />

body section<br />

Wear and crocks<br />

/<br />

Grease passage A<br />

MAINTENANCE:<br />

1. Keep clean.<br />

2. Grease coat wear surface of clevis.<br />

3. Remove any rust and weather protect as required.<br />

4. Check and secure all pins.<br />

Figure 4-21. Block-to-hook adapter [lo].

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