Mack M359 - Coupling System Area; Rear of Vehicle Area; Right Rear Vehicle Area

MAINTENANCE, LUBRICATION AND SERVICE
PRE-TRIP INSPECTION QUICK LIST
cooler, hoses and ttings for
leaks.
• Check drive shaft.
• Exhaust system: secure, not
leaking, not touching wires, fuel
or air tubing.
• Frame and cross members: no
bends, cracks or breaks.
DPF/SCR check hoses and
ttings for leaks.
• Air tubing and electrical wiring:
secured against snagging and
chang.
6
Right Rear Vehicle Area
Dual Wheels, One or Two Axles
• Check condition of wheels and
rims. Especially look for cracks,
missing lockrings, bent or broken
spacers, studs, missing clamps
or lug nuts.
• Check condition of tires: properly
inated, 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
• Check condition of springs (leaf),
spring hangers, shackles and u-
bolts.
• Axle alignment.
Brakes
• Condition of brake drums. With
brakes released, look for a
noticeable gap between lining
and drum. This check cannot be
made if dust covers are in place.
• Condition of brake hoses: check
for any chang.
• Check brake chamber mounting
bolts and brackets.
• Check slack adjusters and
chamber push rod travel. With
brakes applied or released, look
for conspicuously different
positions of the slack adjusters
for proper adjustment.
• Check spring brakes.
7
Rear of Vehicle Area
• Frame or cross members not
bent, cracked or otherwise
damaged or missing.
• Check that air tubing and
electrical lines are properly
secured to the frame with no
damage or chang.
Lights and Reectors
• Tail lights, brake lights and turn
signal lights: operating, clean and
proper color.
8
Coupling System Area
Fifth Wheel
• Securely mounted to the frame.
• No missing or damaged parts.
• Check that trunnion and plate are
properly lubricated.
Sliding Fifth Wheel
• Mechanism not worn, bent,
damaged or parts missing.
• 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.
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