Chery B11. Manual — part 191
Chery B11 Service Manual Four-wheel alignment
3、Abnormal
Abrasion of Tyres
Undue abrasion of tyres illustrated in the right figure may
occur, consults possible reasons and disposal methods in
following table. (See the figure)
F
Possible reasons
Disposal methods
(a)
*Lack of tyre pressure (abrasion on
both sides)
*Turn in high-speed
*Location of tyres hasn’t been adjusted.
*Measure and adjust tyre pressure
*Speed down
*Adjust tyre location
(b)
*Tyre pressure is too high.
*Location of tyres hasn’t been adjusted.
*Measure and adjust tyre pressure
*Adjust tyre location
(c)
* Incorrectness of toe-in
*Adjust toe-in
(d)
*Incorrectness of camber or caster
*Suspension system failure.
*Tyre imbalance
*Out-of-round of brake drum or the
disk.
*Other mechanical problems
*Location of tyres hasn’t been adjusted.
*Adjust, fix or replace the axle and
suspension system.
*Fix or replace
*Keep the tyre in dynamic balance or
replace it.
*Calibrate or replace
*Calibrate or replace
*Adjust tyre location
4、
Precautions related to rims and tyres
(1)Don’t use substandard rims and tyres.
(2)Aluminum alloy steel rim is likely to be scraped, so use soft fabric to clean it instead of steel brush. Don’t use
boiling water to clean it directly if cleaning vehicles with steam.
(3)If toothed compound, such as mud or slurry is attached to aluminum alloy steel rim, it is needed to clean it with
neutral cleanser as quickly as possible to avoid damaging.
Double-side Wear
Center Wear
Toe-in Wear
Single-side Wear
Figure: Tyre Abrasion
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Chery B11 Service Manual Four-wheel alignment
5、Replacement of tyres
(1)Before equipping inner tube valve, check if valve
hole is smooth without a bur. Then apply glycerol onto
the rubber surface of inner tube valve or dip inner tube
valve into glycerol.
It is finished with installation
correctly via passing binding ring of
inner tube
valve through the hole of the vehicle under the pressure
of 200-400N
with special tools (Suds is allowable
for replacement of
glycerol.
)
(2)Before equipping tyres, apply glycerol or suds
onto the bead and note: When there’s a dub mark on
wheel rim, align the mark of tyre uniformity test with the
dub mark. When there isn’t a dub mark on wheel rim,
align the mark of dynamic balance test with inner tube
valve. When there is neither a dub mark on wheel rim nor
the mark of dynamic balance test, but there is a mark of
static balance test, align test mark of static balance with
inner tube valve.
6、Tyre pressure
Check pressure of all tyres, including spare tyres and adjust
it when needed. Inflate tyres according to given pressure
strictly. Air pressure can’t exceed 10% of rated air pressure
during inflation. When installing spare tyres assy separately,
rated inflation pressure shall be 2.5 bar and they shall be
stocked in isolation from four wheels for equipping the
vehicle. Before processing four-wheel alignment, check
tyres pressure of 4 wheels and adjust it : front wheel :
2.2bar,rear wheel 2.0bar.(See the figure)
7、Air Leakage
Make sure there’s no air leakage of inner tube valve as
shown.
Check tyre pressure
tyre
Air Leakage
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Chery B11 Service Manual Four-wheel alignment
8、Check out-of-flat of rims
(1)Prop up vehicles high and safely.
(2)Fix up micrometer indicator equipped with cylindrical
finger(Φ10)on the edge of wheel rim to measure depth of
out-of-flat.(See the figure)
(3) If needed, replace the
rim.
Note: allowable deformation in wheel rim:
Allowable maximum value of out-of-flat depth average on both edges of wheel rims can’t exceed:
Steel wheel rim: 5mm
Aluminum alloy wheel rim: 3mm
9、Adjust tyre location
In view of extending tyre life and making sure tyre abrasion situation, adjust tyre location per 6000km
(3750miles).
(See the figure)
Caution:
*It is needed to use the highest quality tyre for front wheel.
*After adjusting tyre location, adjust tyre pressure to assigned
pressure value. Adjust tyre location
10、 Wheel balance adjustment
After tyre inflation, screw valve-protecting cap to process
dynamic balance test and equip suitable balance weight on the inner
and outer edges of wheel rim according to the requirement, and require
the last unbalance degree assy is less than 100g· cm (about 5g of
balance weight on the inner and outer edges of wheel rim).
Check out-of-flat of rims
Adjust tyre location
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Chery B11 Service Manual Four-wheel alignment
Note: Allow at least one balance weight per side of per wheel
and maximum mass is less than and equals to 70g. In the process of
equipping, avoid hitting balance weight too heavily. If so, replace
balance weight in time. Balance weight replaced mustn’t be used
again.
11、Installation
(1) When installing wheel and tyre assembly, screw wheel bolts into wheel rim with hands to be preloading. After
preloading, screw it on with special tools in the diagonal to screw the moment of a force (100~120N.m). It’s forbidden to
use impact wrench to avoid damaging wheels, loosening and tightening. It’s forbidden to apply lubricating grease on wheel
bolts. (It’s needed for wheel and tyre assembly equipped to screw wheel bolts on once and tighten the moment of a force
after the first running of 100km. It’s one of the content of routine maintenance to check wheel bolts and tighten the moment
of a force.)
(2) Tighten nuts by crossing. The degrees of screwing should be close to
each other and make sure that wheels can turn freely. After tightening,
wheels lie on the ground.
(3)Install trimming cover or place trimming cover according to
requirements. When installing ferrule-type trimming cover, flap it with
hands or knock it in with rubber tools.
Outer side
Balance weight
Balance weight
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