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DISASSEMBLY AND REASSEMBLY
5. Tooth contact adjustment
(1) To move the bevel pinion G toward or away
from the bevel gear C8 for tooth contact
adjustment, decrease or increase shims F
between the bearing cage and tmnsmission
case.
(2) To determine the tooth contactpattern, brush
red lead sparingly on the bevel gear teeth,
and rotate the pinion backward and forward
until a contact pattern is noted on both
concave and convex faces of the gear teeth.
[No~
To make the tooth contact pattern more
visible, lightlypress the gear when rotating
L~e
pinion.
Correct tooth contact
Contact (indicated by the dark areas on the tooth
faces) is heaviest toward the toe end and extends
about 30% of the tooth length on both coi~vex
and concave faces.
Incorrect tooth contact
0
Pinion too far away from bevel gear
(1) Contact extends toward the toe end of
concave faces and toward the heel end of
convex faces.
(2) To correct this contact, decrease the thick
ness of shims F, and turn adjusting nuts C2
to move pinion G away from gear C8.
Again brush red lead on the gear teeth, and
check the contact pattern.
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