JAC HFC4181KR1 Owner's Manual page 66

OWNER ' S MANUAL
JAC HEAVY DUTY TRUCK
CHANGING WHEELS
Use the wrench to loosen the wheel nuts, then remove them with your fingers. Remove the wheel, slide the wheel off the
studs and lay it flat so it cannot roll way.
To re-installed the wheel, put the wheel on the hub and put the wheel nuts on the studs and tighten them finger tight.
LOWER VEHICLE AND TIGHTEN NUTS
To lower the car to the ground, turn the valve 1 counterclockwise by the jack handle.
Then position the wrench as shown in the drawing and tighten the wheel nuts.
* Wheel nut tightening torque:
8 studs wheel :706 to764 N.m (72 to 78 kg.m)
10 studs wheel :578 to 666 N.m(59 to 68 kg.m)
NOTE:
Wheel nut maintenance interval
1. After driving your vehicle during first 1,000km, retighten the wheel nuts with the specified torque.
2. And then, wheel nuts should be checked or retightened for every 5,000km or a month.
3. After replacing the tire, if you drive your vehicle for 50~100km, then the wheel nut should be retightened.
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TIRE INFLATION PRESSURES
Low tire inflation pressures could cause overheating and burst of the tire. High tire inflation pressures, on the other hand,
will drastically reduce tire life.
When tires were replaced, be sure to adjust the tire inflation pressures to the standard values.
● The standard tire inflation pressure caution plate at the right side of the driver's seat shows the maximum tire inflation
pressures for operation on the general road. To extend ti re life, it is advisable that the tires are adjusted to the inflation
pressures calculated from the load.
Precautions for adjustment of tire inflation pressures
Adjustment should be made while the tires are cold before operation.
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In the case of double tires, make sure that there is no difference in inflation pressure between the tires. If there is a
●
difference, the higher inflated tire will suffer premature wear and damage, and the lower pressure one will also be ad鄄
versely affected.
During operation or immediately after operation, the tire inflation pressures will increase because of the heat. Since
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the increase of tire inflation pressure during operation is not an abnormal condition, do not deflate the tires.
The tire inflation pressures need not be increased for high speed operation.
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