JUKI MO-2000 Series Service Manual page 21

Adjustment Procedure
Checking items:
❶ Main feed dog
❷ Sub feed dog
❸ Throat plate
* Check that the feed dog and the slot in the throat plate ❸ are parallel
with each other, that the clearances on the right and left side of the
feed dog are equal (A).
* Maximize the feed amount (scale mark: 4). In this state, check to be
sure that the main feed dog ❶ is at the most retracted position and
main feed dog ❶ does not interfere with throat plate ❸ (B).
* Check at the most-advanced position in max. main feed and min. sub-
feed the clearance between the main feed dog ❶ and the sub-feed
dog ❷ is 1 mm (C).
How to perform adjustment:
○ Maximize the feed amount (scale mark: 4). Move main feed dog ❶ to
the most retracted position.
○ Loosen the setscrews (D) of the main feed dog ❶ .
○ Move main feed dog ❶ to adjust so that it does not interfere with
throat plate ❸ .
○ Retighten the setscrews (D).
○ Maximize the feed amount (scale mark: 4). Adjust the differential feed
ratio to 0.7. Bring main feed dog ❶ and sub feed dog ❷ to the posi-
tion where they are closest to each other.
○ Loosen the setscrews of the sub-feed dog (E).
○ At the most-advanced position in max. main feed and min. sub-feed,
move the sub-feed dog back and forth, to perform adjustment so that
the clearance between the main feed dog ❶ and the sub-feed dog ❷
is to be 1 mm (C).
○ Retighten the setscrews (E).
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Results of Improper Adjustment
If the clearances on the right side
and left side of the feed dog are
not equal, the feed dog can inter-
fere with the throat plate. In addi-
tion, irregular feed and wrinkles on
the material can be caused.