Appropriate pressure and drving habit affects the life-span of the tyres awfully. Sudden
turn, sudden acceleration and unnecessary sudden brake may increase the wear degree.
2.Wheel2．
The hub of wheel is either stealiness or aluminum: 13*41/2J.
3．3．Tyres For Replacement
Use the same tyres as old ones. Refer to the tyre schedule. The size, structure and the
load-range of the new tyres should accord with the old tyres. Otherwise, the tyre may affect
operation, speedometer, odometer, tyre chain ,ground learence and the clearance of body and
chasis.
Attention:
Don’t use different tyres in one vehiecle except an emergency.
Just as radial-tyre or belted-bias-tyre. Otherwise, it will seriously
affect the operation of the vehiecle. More seriously, the vehiecle
would be out of control.
We advise to fix a pair of new tyres for the same axle.
If you just change one tyre, you should match the new tyre
with the newer one of them as a pair to get a better
traction. The metric unit of tyre-pressure is Kpa.
The meter ofc tyre pressure is available from tool
distributors. The conversion between Kpa, Kgf/ cm
2
and psi is
listed from right for reference.
4.Chage The Tyre
If the tyre is bent, hollow, the lateral misalignment or
the radial motion is too much, there is leakage from weld line,
the screw is elonged, or eyescrew cap is loose or badly
rusted, the tyre must be changed. If the jerking-motion
-value of the lateral misalignment or the radial motion is
higher than the one below, the tyre may cause harmful
boboing.
The new tyre should accord with the old ones in Loading
capacity, radius, off-set of the rim and the fixing structure.
Unproper tyre in size and type may affect the life-span of the wheels and axles, cooling system,
speedometer, odometer, ground learence and the clearance of body and chasis.
It is necessary to make use of an exact indicating gauge to check the value of jerking-motion.
The tyre can be either looed or fixed. Tyres should be fix on the dynamic wheel balancer to get
an exact result.
To measure the vzlue of jerking-motion inside and outside rim. Place the indicating gauge
well and roatate the wheel round then note down the reading.
Change the tyre when the value is over the prescribed and no way of adjustment through dynamic
wheel balancer. Reaing caused weld-line, coating or cruise can be neglected.
(Max.
radial motion)
(Max.
lateral
misalignment)
(Steeliness
Wheel)
1.14mm 1.40mm
5. Metric eye-screws and wheel bolts5．
