Volvo VNL 780 Operator's Manual page 249

Step 13: Left Rear Trailer Wheels Area
Dual Wheels, One or Two Axles
•
Check condition of wheels and rims. Especially look for cracks, lockrings missing,
bent or broken spacers, studs, clamps or lugs.
•
Check condition of tires: properly inflated, no serious cuts, bulges, tread wear or any
signs of misalignment; valve stems not touching wheels, rims or brake drums; valve
caps in place and no objects stuck between the wheels.
•
Check that both tires are of same type, for example, not mixed radial and bias type and
that their circumferences are matched.
•
Check wheel bearing and hub: no obvious leaking on outside or inside wheel.
Suspension
•
Condition of springs (leaf or air), spring hangers, shackles and U-bolts.
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Axle alignment.
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Condition of torque rod arms.
•
If equipped with sliding axles, check position and alignment. Look for damaged, worn
or missing parts, all locks present, fully in place and locked.
•
Flexible air tubing not cracked, cut, crimped or otherwise damaged. It should be
secured against tangling, dragging and chafing.
Brakes
•
Condition of brake drums. With brakes released, look for a noticeable gap between
lining and drum. (This check can not be made if dust covers are in place.)
•
Condition of brake hoses: check for any chafing.
•
Check brake chamber mounting bolts and brackets.
OPERATION 239