Mack TerraPro LEU 2010, Operator'S Handbook Manual

Page: 90 / 225

PRE-TRIP INSPECTION AND DAILY
MAINTENANCE 79
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, missing clamps or lug nuts.
• 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
• Check condition of springs (leaf or air), spring hangers, shackles and U-bolts,
no cracks, breaks or shifting.
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 chafing.
• 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 brake adjustment..
• Check spring brakes.
Condition of Visible Components
• Transmission: not leaking.
• Drive shaft: looks OK.
• Exhaust system: secure, not leaking, not touching wires, fuel or air tubing.
• Frame and cross members: no bends, cracks or breaks.
• Air tubing and electrical wiring: secured against snagging and chafing.
Left Fuel Tank(s)
• Securely mounted and not damaged or leaking.