Pre-Trip Inspection and Daily Maintenance
37
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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 318).
Sliding Fifth Wheel
•
Mechanism not worn, bent, damaged
or parts missing ( page 320).
•
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.
