Check And Adjustment Of Backlash In Tapered Gears With Circular Teeth To Drive Pumps Of Hhl And Transmission Hydraulic System; Check And Adjustment Of Axial Clearance In Bearings Of Cages Of Drive Gear To Drive Pumps Of Hll And Transmission Hydraulic Syste - Belarus 3522.5 Operator's Manual

3.6.9 Check and adjustment of backlash in tapered gears with circular teeth to drive
pumps of HHL and transmission hydraulic system.
The backlash in tapered bearings shall make 0,2 to 0,4 mm. The contact shall be
not less than 50 % of the surface with impress location in the middle part. The adjustment
shall be carried out by means of changing the number of shims 2 under the body of pump
drive 1 (figure 3.6.7). Previously it is necessary to check and if required adjust the offset of
the drive gear 8 to reach the dimension 48,75±0,1 mm on the plate 1 (figure 3.6.6) of the
rear axle body at the cost of changing the amount of shims 7.
1 – plate of rear axle body; 2 – shim; 3 – cage of back rest; 4, 7 – shims; 5 – drive
gear cage; 6 – shims; 8 – drive gear; 9 – bearing.
1 – body for drives of pumps of HHL and transmission hydraulic system; 2 – shims
Figure 3.6.7 – Installation of drives of pumps of HLL and transmission hydraulic system
ATTENTION: REPLACE TAPERED GEARS WITH CIRCULAR TEETH TO DRIVE
PUMPS OF HLL AND TRANSMISSION HYDRAULIC SYSTEM ONLY AS A SET. THE
GEARS SHALL HAVE IDENTICAL NUMBERS!
3.6.10 Check and adjustment of axial clearance in bearings of cages of drive
gear to drive pumps of HLL and transmission hydraulic system
The axial clearance in the bearings shall not exceed 0,1 mm. The adjustment shall be
carried out by means of changing the number of shims 6 (figure 3.6.6). When carrying out ad-
justment turn the cage 5 to make rollers take their position in the cage. Assembly and adjust-
ment shall be carried out before mounting the cage 5 ready-assembled on the plate 1.
Figure 3.6.6 – Assembly plate
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