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244
80-160
Maintenance
Tire Maintenance
MAINTENANCE CHECK
As a part of the WEEKLY MAINTENANCE, inspect the tires and rims for damage. Cuts and bruises,
snags, punctures, and abrasions should be repaired before they can cause tire failure. Bent, cracked or
loose rims should be repaired or replaced.
Check tire valve condition and make sure each valve has a cap.
TIRE PRESSURES
Always maintain the recommended tire inflation pressures in all tires provided by the crane carrier
manufacturer.
When driving, some increase in tire pressures can be expected due to heat generated by friction.
Overspeeds may also produce increased tire pressures. In such circumstances, NEVER BLEED THE
TIRES. Instead slow down or stop until the tires cool.
Inflation pressure should be checked when tires are cool, using an accurate tire pressure gauge. Check
pressures at regular intervals.
Bleeding the air from hot tires is dangerous and should not be attempted. While the pressure will be
reduced, an increase in temperature of the tire will take place as soon as driving is resumed and tire
failure will result.
UNDER INFLATION
Too little air pressure increases deflection, causes the tread to wipe and scuff over the road, results in
extra strain on the tire, and increases the chances for bruising.
PROPER INFLATION
Maintaining the proper air pressure provides maximum road contact and results in increased tire life.
OVER INFLATION
Overinflation reduces tire deflection and tire contact area, causing the tire to ride on the crown, and
results in rapid wear in the center of the tread.