Engine JAC HFC4DA1-2C. Manual - part 162

WT

WT

WT

WT Wheels

Wheels

Wheels

Wheels and

and

and

and Tires

Tires

Tires

Tires

- 173 -

Wheels

Wheels

Wheels

Wheels and

and

and

and Tires

Tires

Tires

Tires

Applied models: SUNRAY products manufactured by JAC

Subject

Page

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Wheels and Tires..........................................................................................................................................................174

Explosive View of Wheels and Tires...................................................................................................................... 175
Precaution for Tire Usage....................................................................................................................................... 175

Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Testing

Testing

Testing

Testing

Removal/Installation Instruction of Tire Assembly................................................................................................ 176
Fault Symptom Table..............................................................................................................................................177

Removal/installation

Removal/installation

Removal/installation

Removal/installation

Removal/installation of wheel

and Tires........................................................................................................ 178

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Wheels

Wheels

Wheels and

and

and

and Tires

Tires

Tires

Tires

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Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

SUNRAY

SUNRAY

SUNRAY

SUNRAY vehicles

vehicles

vehicles

vehicles adopts

adopts

adopts

adopts tire

tire

tire

tire models

models

models

models of

of

of

of GITI

GITI

GITI

GITI 1

1

1

19

9

9

95

5

5

5/70

/70

/70

/70R15LT

R15LT

R15LT

R15LT and

and

and

and 185R15LT

185R15LT

185R15LT

185R15LT....

Tires of different sizes are applied for bearing the
vehicle weight, supplying driving force and brake force,

buffering the impact from road surface as well as
changing the running direction of vehicle..

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Wheels and

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Tires

Tires

Tires

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Notice

Notice

Notice

Notice for

for

for

for tire

tire

tire

tire usage

usage

usage

usage

Please use the genuine tires manufactured by the
original manufacturer.
During running-in period of new tires, please avoid fast
starting, sharp turning and emergent braking, and don’t
use tires under severe working conditions, in order to
protect the new tires from premature damage.
Wheel

balance

should

be

conducted

before

the

application of new tires.

Tires

Tires

Tires

Tires

Inspection:

Inspection:

Inspection:

Inspection:

1.

Inspection of tire pressure

�

Check the inflation pressure of tire. Make
adjustment if the pressure is not within the
standard range.

Standard value: 450±10KPa

Attention:

Attention:

Attention:

Attention:

Check the tire pressure by using tire pressure gauge
of good performance. Check tires for wear,
improper inflation, crack or other damage.
Please check the tire pressure if the ambient
temperature experiences violent change.

�

Improper tire pressure shall lead to the results
below:

a.

Under-pressure shall lead to quick wear of tire
shoulder, as well as increase of tire deflection
and rolling resistance.

b.

Over-pressure shall lead to quick wear of the
middle part of tire crown and decrease of
buffer capacity.

2.

Inspection of improper alignment
Too large/small front/rear wheel toe-in shall lead to
feathered wear of tire.

3.

Inspection of tire tread

�

Check the tread depth of tire.

Note:

Note:

Note:

Note: Tire size: 185R15LT

When the tread depth reaches to the limit

value or smaller, wear mark shall be shown on
the tread; at this time, please replace the tire.

�

Check tire tread for any foreign matter. If any,
please clear it.

4.

Check wheel for crack or other damages. If there is
deformation, please check the wheel runout.

�

Remove the tire from wheel and install it onto
the wheel balancer.

�

Set the dial indicator as shown in figure.
Please

refer

to

“Maintenance

Data

and

Specification” for wheel runout. If it exceeds the
limit, please replace it.
Tire rotation::::
Perform tire rotation after the vehicle running for
8000Km. tire rotation shall also be conducted when
changing with a new tire.

Replacement:

Replacement:

Replacement:

Replacement:

①

Please replace tire after normal running for
50000Km.

②

Replace tire in case one of the following conditions
occurs:

�

At least 3 wear marks exposed on tire tread.

�

Tire cord fabric or tire cord exposed on the
rubber.

�

Cracking of tire tread or shoulder with cord
fabric exposed.

�

Tire bulge, upheaval or layering.

�

Tire being punctured or scratched or other
damages that is hardly to recover.

Wheel

Wheel

Wheel

Wheel &

&

&

& tire

tire

tire

tire assembly

assembly

assembly

assembly

Removal/installation:

Removal/installation:

Removal/installation:

Removal/installation:

1.

Removal

�

Remove wheel nut.
Tightening torque: 220～280N.m

�

Remove wheel & tire assembly.

2.

Installation
Install wheel & tire assembly and tire nut.
Attention:

Attention:

Attention:

Attention:
As for manual installation, tighten it according to
the diagonal order after nuts are pre-tightened in
sequence.
As for auto tightening, adjust the tightening torque
and tighten it at one time.
Please tighten all wheel nuts in the order indicated
in the figure.

Wheel

Wheel

Wheel

Wheel balance:

balance:

balance:

balance:

1.

Removal

�

Remove the wheel and tire in need of
adjustment.

�

Remove the used balance weight on both sides
of wheel and clear any foreign matter on the
tire tread.

Attention:

Attention:

Attention:

Attention:

Don’t make the tire scratched during removal. In
case of new tire, rubber belt on tire should be
removed.

2.

Wheel balance adjustment

�

Install the wheel onto the balancer by
centering the center hole and start the wheel
balancer.

�

When both inner and outer balance values are
displayed on the balancer, the actual balance
weight can be obtained by multiplying the
outer balance value by 5/3. Choose the outer
balance weight approaching to the calculated
value and install it onto the specified position
outside or diagonal position.

Attention:

Attention:

Attention:

Attention:

Install

the

inner

balance

weight

after

the

installation

of

outer

balance

weight.

Before

installation, please make the mating surface clean.
a.

Install the balance weight to the position as

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Tires

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shown in the figure.

b.

When installing balance weight onto wheel,
the balance weight shall be placed onto inner
wall with grooves as shown in the right figure,
with the center of balance weight aligned with
the position (or angle) indicated by the wheel
balancer.

c.

If the calculated balance weight exceeds by
50g, please install two balance weights in the
same straight line.

Attention:

Attention:

Attention:

Attention:

�

For balance weight cannot be reused, please
apply new one every time.

�

No more than two pieces of balance weight
can be installed.

�

Please always use genuine balance weight.

�

Please don’t place one balance weight onto
another one.

③

Restart the wheel balancer.

④

Knock in the balance weight from the inside of
wheel as per position (or angle) indicated by wheel
balancer.

⑤

Start the balancer to verify if the residual
inside/outside unbalance value is below 10g. If the
residual unbalance value of any side is over 10g,
dynamic balance test should be conducted.