Dingsheng Tiangong PY180H, Руководство по эксплуатации

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and leads to raise air pressure. But this increased air pressure is a problem. So,
you would not correct it and do not lower air pressure by releasing air.
8.10.2 Air pressure of tyre: Bar
Tyre Layer Front wheel Rear wheel
17.5~25 12 2 ±0.3 2 ±0.3
8.11 Fasten and change wheel
8.11.1 Fasten wheel
Wheel nuts should be checked daily for tightness during the first 100 operating
hours and should be tightened if necessary. Later, every 50 operating hours.
Tightening torque is 450Nm. Tightening is necessary since bolts and wheel nuts
as well as the coat of the lacquer of the rims are settled for a long time. When
traveling, if the wheel is loosened and bolt holes are damaged, the wheel will fall off.
For tightening, check proper fitting and retighten the wheel nuts to ensure the
specified tightening torque by torque wrench.
8.11.2 Change wheel
The hand brake must be pulled tightly before changing the wheel.
Before jacking the grader, loosen the wheel nuts by approx. one turn.
For changing the rear wheel, one side of the grader can be jacked up
hydraulically. With this purpose, the blade can be turned in such a manner that the
blade tip is located in front of the tandem wheels which have to be lifted. Then jack
up the grader with the lift cylinder on the side where the wheel to be changed.
Use bulldozing plate and blade to bear against to support the front wheel.
The grader must be supported firmly before disassembling the wheels.
Unscrew the wheel hub nuts and disassemble the wheels.
Note:
When disassembling and mounting the wheel, make sure not to damage
the screw thread of wheel hub. After mounting the wheel, the wheel nuts must be
tightened face to face crosswise.
After mounting the wheel, tighten the wheel nut crosswise. Within 100
operating hours after changing every wheel for the wheel nuts should be retightened
daily with specified torque of 450Nm.
8.11.3 Direction of
wheel treads
When mounting the wheel tyre, pay
attention to the direction of the tyre threads. It is
recommended that the driving rear wheel mounted
so that the tread is in accordance with the
illustration (Fig.9-19) to give rise to the greatest
tractive power in the forward direction of the
traveling (See arrow) to the rear wheels. The
non-driven front wheel should be fitted so that the
Fig. 59