Belarus 1523, Руководство по эксплуатации

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BELARUS-1523/1523 В /1523.3 /1523В.3 Construction and Operation
117
Adjusting the FDA Drive Automatic Engagement Sensor Switch
Adjust the switch (5) when the assembly
of the hydraulic compression clutch is
completed and the cover (6) is refitted to
the transmission. To do this, proceed as
follows:
1. Turn the drum (1) and set it to the po-
sition I, when the cams of the semi-
clutch (2) and those of the drum (1)
are completely brought together, and
the pusher (3) is drawn out to its ex-
treme position.
2. Place the original number of the ad-
justing shims (4) (5-6 pieces) under
the end-face of the switch (5).
3. Try to attain position II of the switch
(5), when its contacts are closed by
removing the adjusting shims (4) one
by one.
4. Place the semi-clutch (2) to position II,
wherein cams of the semi-clutch (2)
and the drum (1) are completely sepa-
rated and the pusher (3) is depressed
to its extreme position.
5. Check whether contacts of the switch
(5) are open in position II.
The switch is considered to be correctly
adjusted if its contacts are closed in the
position I, while in the position II they are
opened. The check shall be carried out in
accordance with indications of the warn-
ing lamp. It is allowable to check against
the warning light on the control panel; in
this case the FDA drive control key
should be in its upper position.
Note:
When in position I, the dimension A be-
tween the end-face of the pusher (3) and
the end-face of the switch (5) should be
at least 1.5 mm.
Failure to meet this requirement can
cause the failure of the switch (5).