33.19
Checking tooth contact pattern
•
The tooth contact pattern must be checked if the
gear set, housing or input bevel pinion bearing
have been renewed
L Note:
The contact pattern is adjusted at the shim washer
(1) on the input bevel pinion.
•
Degrease the tooth flanks on crown wheel and
pinion, and coat with engineer’s blue.
•
Insert the crown wheel, press into housing with
the palms of the hands and turn to and fro.
•
If the correct spacer disc is installed, the follow-
ing contact pattern appears when no load is ap-
plied.
L Note:
The contact point is central on front flank V.
The contact point is closer to the larger diameter on
back flank R.
e Caution:
Teeth should never make contact at the smaller di-
ameter.
•
If this contact pattern is obtained, a thinner shim
washer must be installed.
•
If this contact pattern is obtained, a thicker shim
washer must be installed.
1
LT330220
V
R
LT330230
LT330240
LT330250
To Next Page
Loading...
Need help?
General
