Rear Axle Gears Adjustment Data Sheet
Data SheetData Sheet: Adjustment Of Rear Axle Gears:
Explanations and instructions
a) Each drive pinion and ring gear of a gear assembly is identified by a consecutive number written on both components.
b) Measure difference between measuring body height "B1" and height of pinion plus height of tapered roller bearing "B" and enter into table under item 1.
Attention! On large center piece with pinion height of 39.0 mm add (+) another 1.5 mm (refer to example II of image).
c) Read basic deviation "a" on drive pinion and enter into column of table with respective prefix (+ or-) under item 2.
d) Add (+) or subtract (-) data of item 1 and item 2.
e) Measure difference between adjusting gauge dimension and depth of rear axle housing "A1" and enter into respective column of table (plus or minus direction) under item 3.
The directional data plus (+) or minus (-) refer to direction of rotation of dial gauge needle. A deviation from zero position in anti-clockwise direction means minus direction, in clockwise direction plus direction.
f) Only the basic adjustment dimension "A" is decisive for adjustment of the drive pinion. When checking the basic adjusting dimension "A" the drive pinion must be completely installed together with the spacing sleeve and the friction torque should amount to 120-140 Ncm for new tapered roller bearings and to 50-100 Ncm for used roller bearings. If the limit of 0.01 mm in plus direction and of 0.02 mm in minus direction from basic adjusting dimension "A" is exceeded, grind down compensating washer or install another compensating washer of appropriate thickness. In doing this it is imperative that a new spacing sleeve is used.