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Shims
• The meter roll should have a small gap (.030”) between
the roll and the meter housing for proper operation. If the
gap is too large product can leak around the meter roll
into the air stream. If the gap is too tight the meter roll will
bind on the housing and cause problems with the meter
drive system.
• A .030” thick shim (Amity P/N 65744) can be installed
between the meter roll and the meter housing to reduce
this gap. The meter shaft needs to be removed to install
this shim, see the section on changing meter rolls on the
procedure to remove the shaft.
• Ensure the meter roll turns freely after installing or remov-
ing any shims. If the meter roll does not turn freely, DO
NOT operate the air cart until enough shims have been
removed to allow the meter roll to turn freely.
Defl ector Block
The black plastic defl ector block in the rear of the meter
prevents seed from fl owing around the back side of the meter
roll. If needed, this block can be adjusted vertically to in-
crease or decrease the clearance to the meter roll. To adjust,
loosen the two nuts on the back side of the meter housing,
move the block to the desired position, and tighten the nuts to
lock the block into place
Meter Door Tray
The tray on the meter door can be adjusted vertically in order
to increase or decrease the tension between the rubber seal
on the tray and the meter roll. To adjust, loosen the three
nuts holding the tray to the meter door, move the tray to the
desired position, and tighten the nuts to lock the tray into
place.
Meter Door and Cleanout Door Latches
The tension on these latches can be adjusted to increase
or decrease the preload on the meter door and the clea-
nout door. If the preload is too small, the doors will not seal
properly. If the tension is too tight, the latches will be diffi cult
to close. The tension can be adjusted by unlocking the latch
and screwing the two stop-nuts evenly in or out. Ensure the
door preload is adequate before putting the unit back into
service.
Other Meter Adjustments
The following adjustments are done at the factory and should only be done by a trained service technician.
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