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GEAR BOX
44
7. Similarly press out the constant mesh over drive
gear from the counter shaft.
INSPECTION
Following points should be checked before starting
to assemble the counter shaft:
•
Gear teeth for breakage, wear, pitting, scoring
and overheating marks.
•
Bearing seats for rotation marks.
•
Splines for breakage, burrs and wear on sides.
ASSEMBLY
SR. NO. COMPONENT DESCRIPTION
1
Taper roller bearing
2
Spacer
3
Circlip
4
4
th
gear (Counter shaft)
5
3
rd
gear (Counter shaft)
6
Counter shaft
7
Over drive gear
1. Heat the constant mesh and 3
rd
gear to 100°C–
120°C and press over counter shaft with proper
support in such a way that bigger gear i.e. 4
th
is
facing upward and fit the circlip.
2. In the same way fit 5
th
gear over other side such
that longer boss is facing upwards. Ensure proper
abutment of gear on the counter shaft.