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STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

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Hoisting System 551<br />

Wear and crocks<br />

m<br />

Check top and bottom<br />

diameters and taper<br />

for weor<br />

Reduced<br />

back up<br />

Wear due to<br />

w joints hitting<br />

suggested 1.0. wear<br />

in the throat -<br />

MAINTENANCE:<br />

Consult rnonufacturer<br />

1. Keep clean.<br />

2. Lubricate taper before each trip.<br />

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

Figure 4-30. Spider [lo].<br />

Loose fastene<br />

Crocks<br />

Loose fasteners<br />

Cracks<br />

Freedom of pivot<br />

movement and<br />

bearing weor<br />

MAINTENANCE:<br />

1. Keep clean.<br />

2. Grease coat surface of wire line spool.<br />

3. On units equipped with load cell for weight indicator, lubricate<br />

pivot bearing.<br />

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

Figure 4-31. Deadline anchor [lo].

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