Mounting And Dismounting Wheel, Inspection Of Wheel Nut Tightening - PRONAR T683 Operator's Manual

SECTION 5
5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT
TIGHTENING.
Wheel removal
Immobilise trailer with parking brake.
Place chocks under wheel that will not be dismounted.
Ensure that trailer shall not move during wheel dismounting.
Loosen wheel nuts according to sequence given in figure (5.3).
Place a lifting jack and raise the trailer to a sufficient height so that the wheel
to be replaced does not touch the ground.
Dismount wheel.
Wheel installation
Clean axle pins and nuts of dirt contamination.
Check condition of pins and nuts, if necessary replace.
Place wheel on hub, tighten nuts so that wheel rim tightly fits the hub.
Lower trailer, tighten nuts according to recommended torque and given
sequence.
Tightening nuts
Nuts should be tightened gradually diagonally, (in several stages, until obtaining the required
tightening torque) using a torque spanner. If a torque spanner is not available, one may use
an ordinary spanner. The arm of the spanner (L) figure (5.3) should be selected according to
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.
Do not grease thread of nuts and pins.
5.7
Pronar T683