Repair Manual

REAR BEARING ELEMENTS
33
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PLATE DRIVE REAR AXLE DIFFERENTIAL
2.
ADJUSTMENTOF THE PINION – RIM GEARING CLEARANCE
Checking of the clearance of the conical assembly gear is performed initially by estimation,
by hand.
If the clearance felt is too big, act upon the nut on the side of the casing; by unscrewing
it a number of rotations, until a smaller clearance in the conical assembly gear is obtained,
or, perform the opposite operation clearance is too small.
The following operations shall be performed:
Place in the differential drive pinion casing, the casing – rim assembly, mount the
bearing casings, the adjustment nuts, observing the marking made upon dismounting.
Tighten the bearings casings nuts at a moment of a 4 – 5 daNm.
Screw the adjustment nuts until the clearance value of the gear may be estimated by
hand.
Mount a dial comparator with the tester perpendicular on the rim tooth flank and check
the gearing clearance : it must be between 0,12 – 0,25 daNm.
The measurement shall be made in three equidistant points.
The bearings tightening correction is performed by means of the adjustment nuts.
Mark the position of the nuts in correspondence with the casing.
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