Repair Manual

33
REAR BEARING ELEMENTS
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3. ADJUSTMENT OF THE DIFFERENTIAL DRIVE PINION AND
DIFFERENTIAL RIM CLEARANCE
In a first phase, the clearance of the conical group gearing is measured by hand.
The checking and the exact correction are performed using the comparator dial.
Working procedure:
Place the differential drive pinion, the rim –
casing assembly, the bearings set, the
adjustment nuts in the differential casing,
observing the marking make upon dismounting.
Tighten the bearings casings screws at a mo-
ment of 4 – 5 daNm;
Screw the adjustment nuts until the gear clear-
ance may be estimated by hand.
Mount the comparator dial with the sensor
perpendicular on the rim tooth flank and check
the clearance of the gearing: it should be
between 0,12 and 0,25 mm.
The measurement shall be performed in three equidistant points.
The correction of the clearance shall be performed by means of the adjustment nuts.
The differential bearings clearance is correct if, upon rotating the differential, a
0,05 – 0,20 daNm moment is used.
After performing the a.m. adjustments, lock the adjustment nuts by means of the plate retain-
ers.
Remount the sleeves and the pins, observing the marks made upon dismounting.
CAST IRON REAR DRIVE AXLE DIFFERENTIAL
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