Landoll Drexel SLT30 AC, Руководство по обслуживанию

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2-2 F-459-R1
TIRES, BRAKES AND DRIVETRAIN
Visual Inspection
1. Inspect the tires for chunking (or chipping),
embedded foreign material (wire, rocks, glass, metal,
etc.), cuts, gouges, undercutting or uneven wear.
Remove any object that will cause damage.
2. Check for loose or missing hardware.
3. Remove any wire strapping or other material that is
wrapped around the inside of wheel.
4. Make sure drive wheel nuts are tight. Tighten the
wheel nuts in a criss-cross pattern to a correct torque
value of 125 ft. lbs. (90 Nm). See Figure 2-2.
Chunked Tires or Embedded Objects
IMPORTANT
• Chunking or chipping is caused by repeatedly
running over objects on a littered floor, which
can chip away or produce deep cuts to the rubber
surface of the tire. Embedded objects, such as
glass, metal chips, or nails left in a tire, and truck
overloading, cause the same effect.
• Sharp rapid turns at quick speeds, jack-rabbit
starts and stops and other such bad driving
habits can cause the same kind of damage.
1. Remove any embedded foreign material from the tire
as soon as it is noticed. Also remove torn pieces of
tread.
2. To avoid overloading, always center the payload on
the truck to equalize the load on all tires. Do not
dangle the load on the ends of the forks. Also avoid
fast cornering, which can cause an overload affect.
3. If the tires are chunked bad enough to produce a
bouncy ride, replace them.
Undercutting and Uneven Wear
IMPORTANT
• Undercutting is caused by continuous overloads,
rapid, sharp turns, operating on slopes,
transporting loads with a high center of gravity,
or transporting off-center loads.
• Uneven tire wear is usually the result of
mechanical defects, such as badly adjusted
brakes, misaligned wheels, or a faulty drive train.
1. Undercutting causes the rubber to bulge out over the
edge of the steel band, cutting the rubber just above
the base band.
2. Check that the tires remain centered on the wheels to
prevent splitting of the base band and tread
separation.
3. Correct such defects as soon as possible.
Flat-spotting
IMPORTANT
Flat-spotting occurs when:
• The truck has been sitting idle for some time after
heavy use and is usually caused by the tires
overheating.
• The truck has standing load (loads left on the
forks overnight).
• Locking the brakes while traveling in either
direction on grades (slopes), with or without a
load, causing excessive skidding. Polyurethane
tires are extremely susceptible to this type of
abuse.
1. Avoid excessive heat. Where possible, avoid contact
with hot metal or operation for long periods in hot
oven rooms. Excessive heating will break-down the
tire structure.
2. Avoid standing loads. In addition to being unsafe,
solid tires will flat-spot when loads are left standing
on the truck overnight. In extreme cases, a flat spot
develops and the tire bounces with every revolution.
3. If the tires are flat-spotted bad enough to produce a
bouncy ride, replace them.
4. Do not indulge in stunt driving or horseplay where
excessive hard braking is needed, especially on
grades (slopes).
Extending Tire Life
A few simple measures can help increase tire life, reduce
maintenance (downtime) and overall cost of operation.
1. Inspect tires regularly and remove embedded objects
when they are found.
2. Check that the tires remain centered on the wheels.
3. Use a replacement tire that meets Landoll’s Drexel
SLT30/35 AC new tire specifications.
4. Keep runways clean and maintain floors in good
repair, free from breaks, ruts, cracks and debris.
5. Avoid excessive heat, overloading and standing
loads.
6. Regularly check axle alignment and steering.
7. Avoid sharp turns and quick starts and stops.
8. Avoid contact with oil, grease, gasoline and acid.
Wipe these compounds off as soon as possible.
9. Do not allow hydraulic oil to drip onto the tires.
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