Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ...

Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ... Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ...

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Preventive Maintenance Schedule PART 8: MAINTENANCE AND SERVICE SYSTEM COMPONENT MAINTENANCE TASK Recommended PM Interval I A B C D E Tires & Wheels Tires Check inflationpressure(see"Checking Inflation Pressure"). Inspect for cuts, irregular wear, missing lugs, sidewall damage, etc. X Disc wheels Inspect the wheel disc for any cracks or surface irregularities. Inspect the rim edge and bead seat area for damage. Replace any damaged wheels - DO NOT ATTEMPT TO REPAIR. X Demountable rims Inspect the mounting ring, rim gutter, side ring, and lock ring for damage; replace as required. X Wheel nuts and studs Check the tightness of the fasteners and tighten the fasteners to the specified torque as required (see "Wheel Cap Nut Torque"). X Wheel nuts and studs Inspect for damaged hex corners, stripped or damaged threads, and excessive corrosion; clean or replace as required. X – 126 – Y53-6015 R(08/07)

PART 8: MAINTENANCE AND SERVICE Preventive Maintenance Schedule SYSTEM COMPONENT MAINTENANCE TASK Recommended PM Interval I A B C D E Power Steering Reservoir Check the fluid level (see "Steering Gear Lubrication"). X Reservoir (ON HIGHWAY) Drain, replace the filter, and refill (see "Steering Gear Lubrication"). X X Reservoir (OFF HIGHWAY) Drain, replace the filter, and refill (see"Steering Gear Lubrication"). X X Steering gear Check the lash of the sector shaft; adjust as required. Grease the trunnion bearing (EP NLGI #2 lithium-based, moly-filled, HD grease). Grease the input shaft seal (EP NLGI #2 lithium-based, moly-filled, HD grease). X X X Power assist cylinder Lubricate the ball joints. Inspect for leaking rod seals, damaged ball joint boots, and damage to cylinder rod or barrel. X Hoses and tubes Check for leaks and chafing. X Steering linkage Draglink tube clamp and ball socket Pitman arm clamp bolt and nut Check all joints for excessive lash; replace as required (see "Guidelines For Checking A Steering System"). Check the torque; tighten to specified torque value as required. X X Check the torque; tighten to specified torque value as required. X X X Steering intermediate shaft Check the torque on the pinch bolt and nut. X X R(08/07) Y53-6015 – 127 –

PART 8: MAINTENANCE AND SERVICE<br />

Preventive Maintenance Schedule<br />

SYSTEM COMPONENT MAINTENANCE TASK<br />

Recommended PM Interval<br />

I A B C D E<br />

Power<br />

Steering<br />

Reservoir Check the fluid level (see "Steering Gear Lubrication"). X<br />

Reservoir (ON HIGHWAY) Drain, replace the filter, and refill (see "Steering Gear Lubrication"). X X<br />

Reservoir (OFF HIGHWAY) Drain, replace the filter, and refill (see"Steering Gear Lubrication"). X X<br />

Steering gear<br />

Check the lash of the sector shaft; adjust as required.<br />

Grease the trunnion bearing (EP NLGI #2 lithium-based, moly-filled,<br />

HD grease).<br />

Grease the input shaft seal (EP NLGI #2 lithium-based, moly-filled,<br />

HD grease).<br />

X<br />

X<br />

X<br />

Power assist cylinder<br />

Lubricate the ball joints. Inspect for leaking rod seals, damaged ball<br />

joint boots, and damage to cylinder rod or barrel.<br />

X<br />

Hoses and tubes Check for leaks and chafing. X<br />

Steering linkage<br />

Draglink tube clamp and ball<br />

socket<br />

Pitman arm clamp bolt and<br />

nut<br />

Check all joints for excessive lash; replace as required (see<br />

"Guidelines For Checking A Steering System").<br />

Check the torque; tighten to specified torque value as required. X X<br />

Check the torque; tighten to specified torque value as required. X X<br />

X<br />

Steering intermediate shaft Check the torque on the pinch bolt and nut. X X<br />

R(08/<strong>07</strong>) Y53-6015 – 127 –

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