Opel Frontera UE. Manual - part 673
3E–12
WHEEL AND TIRE SYSTEM
Tire
Tire Replacement
When replacement is necessary, the original metric the
size should be used. Most metric tire sizes do not have
exact corresponding alphanumeric tire sizes. It is
recommended that new tires be installed in pairs on the
same axle. If necessary to replace only one tire, it
should be paired with tire having the most tread, to
equalize braking traction.
CAUTION: Do not mix different types of tires such
as radial, bias and bias-belted tires except in
emergencies, because vehicle handling may be
seriously affected and may result in loss of control.
Tire Dismounting
Remove valve cap on valve step and deflate the tire.
Then use a tire changing machine to mount or dismount
tires.
Follow the equipment manufacturer's instruction. Do
not use hand tools or tire lever alone to change tires as
they may damage the tire beads or wheel rim.
Tire Mounting
Rim bead seats should be cleaned with a wire brush or
coarse steel wool to remove lubricants, and light rust.
Before mounting a tire, the bead area should be well
lubricated with an approved tire lubricant.
After mounting, inflate the tire to 200kPa (2.0kg/cm
2
, 28
psi) so that beads are completely seated. Inflate the air
to specified pressure and install valve cap to the stem.
WARNING: NEVER STAND OVER TIRE WHEN
INFLATING. BEAD MAY BREAK WHEN BEAD
SNAPS OVER RIM'S SAFETY HUMP AND CAUSE
SERIOUS PERSONAL INJURY.
NEVER EXCEED 240 KPA (2.4kg/cm
2
, 35 PSI)
PRESSURE WHEN INFLATING. IF 240 KPA (2.4kg/
cm
2
, 35 PSI) PRESSURE WILL NOT SEAT BEADS,
DEFLATE, RE-LUBRICATE AND RE-INFLATE. OVER
INFLATION MAY CAUSE THE BEAD TO BREAK AND
CAUSE SERIOUS PErSONAL INJURY.
Tire Repair
There are many different materials on the market used
to repair tires.
Manufacturers have published detailed instructions on
how and when to repair tires. These instructions can
be obtained from the tire manufacturer if they are not
included with the repair kit.
Wheel Inspection
Damaged wheels and wheels with excessive run-out
must be replaced.
Wheel run out at rim (Base on hub Bore):
480RS012
General Balance Procedure
Deposits of mud, etc. must be cleaned from the inside of
the rim.
The tire should be inspected for the following: match
mount paint marks, bent rims, bulges, irregular tire
wear, proper wheel size and inflation pressure. Then
balance according to the equipment manufacturer's
recommendations.
There are two types of wheel and tire balance.
Static balance is the equal distribution of weight around
the wheel.
Assemblies that are statically unbalanced cause a
bouncing action called tramp. This condition will
eventually cause uneven tire wear.
Steel
Aluminum
1– Vertical play:
Less than
1.5mm (0.059in)
1– Vertical play:
Less than
0.7mm (0.028in)
2– Horizontal play:
Less than
1.5mm (0.059in)
2– Horizontal play:
Less than
0.7mm (0.028in)