Chery Fora (Elara A520). Manual - part 113

CHERY A520 SERVICE MANUAL CHASSIS

Tire pressure

Use  barometer  to  check  the  pressure  of  all
tires  (including  spare  tires),  and  regulate  the
pressure  if  necessary.  Inflate  the  tire  strictly
in  accordance  with  the  specified  pressure
standard,  and  ensure  the  tire  pressure  not
more  than  10%  rated  air  pressure  during  the
process  of  inflation.  The  spare  tires  should
have  a  rated  inflation  pressure  of  2.5bar  and
shall  be  stored  in  other  areas  separate  from
the car’s four wheels. Prior to the four-wheel
alignment, you should check the tire pressure
of the four wheels, and regulate the pressure:
front  wheel  is  230Kpa,  while  rear  wheel  is
210Kpa. It is shown in the right figure:

Air leakage

Check whether there is air leakage on the tire
valve. It is shown in the right figure:

Check the unevenness of rim

(1)

Uplift the car and securely support it.

(2)

Fix

micrometer

guage(Φ10)

furnished

with

cylindrical

contact

fingers on the edge of rim and measure
its unevenness. It is shown on the right
figure.

(3)

Replace the rim if necessary.

Note: Allowed rim deformation:

On the both edges of rim, the allowed
maximum average value of the unevenness
depth should not exceed:

Steel rim: 5mm

Check the Unevenness of Rim

Tire Pressure Inspection

Tire

Tire valve

CHERY A520 SERVICE MANUAL CHASSIS

Aluminum-alloy rim: 3mm

Tire rotation

In  order  to  prolong  the  operating  life  of  tire
and  determine  the  tire  wearing,  tire  rotation
should be carried out when every 6000km  is
reached.

Note:

The best tire must be selected for front
wheel.

After tire alignment, the tire pressure
should be regulated to specified value.

10.

Wheel balance adjustment

After  inflating  the  tire,  you  should  screw up
the  hood  of  tire  valve  to  carry  out  dynamic
balance  test,  and  install  appropriate  balance
weights  on  the  inner  and  outer  edges  of  rim
as  per  the  requirement.  The  final  total
unevenness  degree  should  be  less  than
100g.cm, that is, each balance weight on the
inner  and  outer  edges  of  rim  is  about  5g.
Note: Not more than one balance weight can
be  furnished  on  each  side  of  each  wheel,
with its maximum weight not exceeding 40g.
During  the  process  of  assembly,  you  should
prevent  the  balance  weight  from  being
heavily  hit.  If  it  is  heavily  hit,  you  should
replace  the  balance  weight  timely.  The
replaced balance weight cannot be reused.

Balance

Weight

Balance Weight

Outer Side

Tire Rotation

CHERY A520 SERVICE MANUAL CHASSIS

11.

Wheel disassembly

Disassembly sequence:

(1)

Dismount the fastening bolt of wheel;

CHERY A520 SERVICE MANUAL CHASSIS

(2)

Unbolt the wheel.

Assembly process

(1)

When  installing  the  wheel  and  tire
assembly,  you  should  fasten  the  wheel
bolts  onto the  wheel  hub  by  using  your
hands,  and  then  take  special  tools  to
fasten  it  tightly  according  to  the
diagonal  process,  with  the  tightening
torque of 110±10 Nm. Impact wrench is
prohibited to use in order to prevent the
wheel  from  being  damaged  or  screwed
up  too  loose  or  too  tight.  Lubricant
grease cannot be applied onto the wheel
bolts.  (After  the  initial  driving  of
100km, the bolts of the installed wheels
and  tire  assembly  should  be  fastened
once to ensure the fastening torque. The
inspection  on  the  fastening  torque  of
wheel  bolts  is  one  of  the  daily
maintenance works).

(2)

When  fastening  fixing  nuts,  you should
adopt cross  method. The  fasten  degrees
of all  fixing  nuts should  be similar, and
wheels  can  rotate  freely.  Finally,  when
tightly  fastened,  the  wheels  should  be
on the ground.

(3)

Furnish with decoration cover or
deployed the decoration cover as per
requirement.

When

installing

card-typed decoration cover, you should
slap by hand or use rubber tools to
knock it in.

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