JUKI LU-2800 Series Engineer's Manual page 29

Adjustment procedures
1) Hand lifter
1. Loosen setscrews of the motor cover to remove the motor cov-
er.
2. Loosen setscrews of the face plate to remove the face plate.
Loosen clamping screw ❶ of the hand lifter A.
3.
4. Adjust the lifting amount to 10 ± 1 mm in the state that the lifter
plate ❸ is in contact with the spring receiving ❷ .
At this time, place a thing thickness of which is 10 mm between
the top surface of throat plate ❹ and the under surface of
presser foot ❺ to facilitate adjustment.
5. In the state as described in the aforementioned step 4, bring
hand lifter A ❻ and B ❼ into the state as illustrated in the figure
and tighten clamping screw ❶ of the hand lifter A.
6. Remove the 10 mm thick thing placed between the top surface
of throat plate ❹ and the under surface of presser foot ❺ .
7. Attach the motor cover.
8. Attach the face plate.
Results of Improper adjustment
When the lifting amount is higher
than the specified value :
The presser foot ❺ is held
o
raised from the top surface of
throat plate ❹ even when the
hand lifter is returned to its home
position.
When the lifting amount is lower
than the specified value :
The presser foot is not sufficient-
o
ly raised and the working prop-
erty may be deteriorated.
– 17 –