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4-15. Adjusting the needle stop position
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
[LH-3528-7, LH-3568-7 only]
B
A
2
1
C
D
3
E
F
– 20 –
(1) Stop position after thread trimming
)
The standard needle stop position is obtained
by aligning marker dot A on the machine arm
with white marker dot B on the handwheel.
2)
Stop the needle in UP position, turn OFF
the power, and loosen screw 3 to perform
adjustment within the slot of the screw. The
needle stop timing is advanced if you move
the screw in the direction of C .
The needle stop timing is delayed if you move
the screw in the direction of D .
Do not operate the machine with
screw 1 loosened. Just loosen
the screw, and do not remove it.
(2) Lower stop position
)
The DOWN needle stop position when the
pedal is returned to the neutral position after
the front part of the pedal is depressed can be
adjusted the same as UP stop. Stop needle
2 in DOWN position, turn OFF the power,
and loosen screw 3 to perform adjustment
within the slot of the screw. The needle stop
timing is advanced if you move the screw in
the direction of E , and the timing is delayed if
you move the screw in the direction of F .
Do not operate the machine with
screw 3 loosened. Just loosen
the screw, and do not remove it.
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