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MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

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Preventive Maintenance<br />

Front Axle and Suspension<br />

FRONT AXLE AND SUSPENSION<br />

Inspection<br />

For all vehicles, mandatory maintenance procedures include<br />

retightening all U–bolts and inspecting the suspension for<br />

loose fasteners, abnormal wear, or damage. However, even<br />

with proper maintenance, the service life of leaf springs is<br />

affected by many factors, such as: fatigue, vehicle gross<br />

weight, type of load, road conditions, and vehicle speed.<br />

SPRING AND<br />

SHACKLE PINCH<br />

BOLTS<br />

SPRING<br />

ANCHOR<br />

PINS<br />

• Check for cracks, wear marks, splits, or other defects on<br />

the surface of the spring. Defective parts must be<br />

replaced. Because repaired springs cannot be fully<br />

restored to their original service life, replace the complete<br />

assembly if cracks or other defects are detected.<br />

Front Suspension<br />

SPRING<br />

ANCHOR PIN<br />

U-BOLTS<br />

00439<br />

• Visually inspect shock absorbers and rubber bushings.<br />

See the Medium Duty Maintenance Manual for further<br />

information on servicing the front suspension.<br />

Axle Lubrication<br />

• Change bearing lubrication when seals are replaced, or<br />

brakes are relined. See Table 2, “Recommended Maintenance<br />

Intervals,” Page 121.<br />

Model <strong>330</strong> PB1318 3/01 – 209 –

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