Volvo VHD Automobile User Manual


 
Pre-Trip Inspection and Daily Maintenance 33
W1000145
Step 7: Coupling System Area
Fifth Wheel
Securely mounted to the frame.
No missing or damaged parts.
Check that trunnion and plate are
properly lubricated ( page 265).
Sliding Fifth Wheel
Mechanism not worn, bent, damaged
or parts missing ( page 267).
Properly lubricated.
All locking pins present and locked in
place.
If air operated: no air leaks.
Air Tubing and Electric Lines Visible From
This Point
Should be secure from dangling.
Both air lines and electric line should
be free from damage, oil and grease.
Step 8: Left Saddle Tank and Left Rear
Vehicle Wheels Area
Dual Wheels, One Or Two Axles
Check condition of wheels and rims.
Especially look for cracks, missing
lockrings, bent or broken spacers,
studs, clamps or lugs.
Check condition of tires: properly in-
flated, 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 obvi-
ous leaking on outside or inside wheel.
Suspension
Check condition of springs (leaf or
air), spring hangers, shackles and
U-bolts, no cracks, breaks or shifting.