803 / 1906
GEAR BOX 6450
35
12. Place the inner race of taper roller bearing
with the help of drift (Part No: 5403 5890 26
04).
13. Hold the assembly in vertical position and
measure the axial play of 1
st
and 2
nd
gear
assembly with the help of dial gauge.
NOTE:
The specified tolerance for axial play is 0.2 mm to
0.5 mm for all gears.
14. Place the outer race of taper roller bearing.
15. Control dimension is to be measured as per
shim selection procedure as given below:
A. Control dimension of 131.1 +/- 0.05 mm is for
highlighted parts as shown below.
B. Measure the distance from outer race taper
roller bearing to the collar face of main shaft
on which 3
rd
gear rest. Let the dimension as
“A”.
C. SHIM THICKNESS (
Z
) = 131.1 + 0.02
(BEARING PRELOAD) – DIMESINON ‘A’
D. Do not press outer race of taper roller bearing
on intermediate plate. Outer race of taper
roller bearing (on intermediate plate main
shaft) should be pressed after pilot bearing
shim (“Y”) selection.