57
5.2.3.2 Cardan drive of the trucks and special chassis with long base differs from that
of the base truck by the modified drive of the intermediate axle, which is a cardan drive consisting
of the front shaft 2 (Fig. 39) with intermediate support and a rear cardan shaft 4 with splined con-
nection balanced in set.
The intermediate support bearing is lubricated in accordance with the lubrication chart.
The cardan shafts maintenance as per the maintenance procedure approved for the truck.
1-transfer case; 2-cardan drive front shaft; 3-intermediate support; 4-rear cardan shaft; 5-drive-type oil cup;
6-spacer
Fig. 39 - Cardan drive of the trucks and special chassis with long base
5.2.4 Driving Axles
5.2.4.1 The driving axles are drive-through type axles with the upper location of the main
gear.
5.2.4.2 Intermediate axle final drive — is of dual type, comprising a couple of spi-
ral-tooth bevel gears 1 and 14 (Fig. 40) and a couple of helical-tooth spur gears 4 and 31. A
symmetrical bevel-type differential with four satellites is bolted to the driven spur gear.
The final drives are marked with plates bearing ratio indication, which are placed under
the bearing body cap bolt of the driving spur gear. Final drive gears differ by the marks on the
driving and driven spur gears (Tabl. 3).
Tab le 3 - Marks on drive and driven cylindrical pinions
Gear ratio
Marks on the face end of the drive cy-
lindrical pinion on the side of the bevel
pinion installation
Marks on the driven
cylindrical pinion
6,77
Three bores of
∅
10mm on the neck
face
∅
65mm 2 mm deep
Two bores under the pinion crown
∅
5
mm 3mm deep
7,49
No marking
One bore under the pinion crown
∅
5
mm 3 mm deep at the distance of 10
mm from each other
