JUKI MO-6000G Series Engineer's Manual page 63

Adjustment Procedures
1} In the state that the presser pressure is applied, loosen presser
tu ming lock nut
O
and adjust the height with presser lifter turning
setscrew
8
so that the height in the list is obtained when
operating the presser lifting pedal.
At this time, check that there is no contact of the presser with
upper looper, needle clamp, top feed dog, etc.
(Caution) Adjust the height so that there is a slight clearance
between presser arm
O
and presser arm stopper
8
when
pedal is pressed and presser lifting arm
O
comes in contact
with presser lifter turning setscrew
8
and stops.
o
Adjust the height by the procedure below even when presser
thrust arm
8
is
removed.
1) Removing the thrust play of the presser shaft, temporarily
tighten thrust arm clamping screw
8.
Lower the presser by 1 to 3 mm from the throat plate with
presser arm
O.
2} Next, in the state of the aforementioned 1 ), fix presser lifter
arm t) with thrust arm clamping screw
8
so that presser lifter
arm t) Is level and there is no clearance at section A.
3) Adjust the lifting amount of the top feed dog with the
aforementioned lifter B stopper screw
8
and nut
0.
and adjust
the height of the presser with presser lifter turning setscrew
8
and nut
C,
so that the height in the list is obtained.
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Results of Improper Adjustment
o
When the height of the presser
is excessively low, entering or
taking out of cloth becomes
hard.
o When the height of the presser
is excessively high, there is the
possibility that the presser
comes in contact with upper
looper, needle clamp, etc.
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