PRONAR T679/5, Operator'S Manual, Page: 79 / 116

SECTION 5 PRONAR T679/5
5.7
5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF
WHEEL NUT TIGHTENING
Dismounting wheel
Place chocks under the wheel that will
not be dismounted.
Ensure that trailer shall not move during
wheel dismounting.
Loosen wheel nuts according to the
sequence shown in figure (5.4).
Place lifting jack and lift trailer.
The lifting jack should have sufficient
lifting capacity and should be
technically reliable.
The lifting jack must be positioned on a level and hard surface so as to prevent
sinking into the ground or relocating the jack during lifting.
If necessary, use proper backing plates in order to prevent the lifting jack from
sinking into the ground.
Make certain that the lifting jack is positioned properly.
Dismount wheel.
Wheel mounting
Clean axle pins and nuts of contamination.
Do not grease thread of nuts and pins.
Check condition of pins and nuts, if necessary replace.
Place wheel on hub, tighten nuts so that wheel rim adjoins hub exactly.
Lower the trailer, tighten nuts according to recommended torque and given sequence.
FIGURE 5.4 Sequence of undoing and
tightening nuts