JUKI AMS-210EN Series, Руководство инженера

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* Turn ON the power once, and turn OFF the power again after
making the intermediate presser in the lowered state.
1. Bring the needle bar down to the lowest position, loosen the needle
bar connection screw and align the upper engraved line on the
needle bar with the bottom end of the needle bar lower bushing .
2. Change the adjusting position according to needle sizes.
(Caution) Be sure that torque is even after adjustment.
At that time, check the clearance toward the wiper. If
the clearance seems to be narrow, readjust this sec-
tion.
– 26 –
Adjustment Procedures Results of Improper Adjustment
If adjustments are carried out with
the needle bar
positioned too low:
o Feed timing causes mismatching
and this can be a cause of needle
breakage.
o Interference occurs with the inner
hook while the needle is lowering
and this can be a cause of needle
blunt or breakage.
o The needle interferes with the
wiper and this can be a cause of
wiper or needle breakage. In
some cases, intermediate presser
step-out may occur.
o Clearance toward the intermediate
presser is decreased and the
wiper becomes useless.