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3-4. Adjusting the stitch length
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
For the stitch length, adjust it on the sewing machine alone. Then, adjust the feed amount of the cloth puller
belt. Then, finely adjust the stitch length while visually checking the finished state of sewing material.
■ Adjusting the stitch length of the sewing machine alone
❸
❶
Lock screw
❷
Marker dot on the
handwheel
Stitch length
* The aforementioned marker dot is only a
reference. Be aware that the adjustment result
may differ with the material used.
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2
3
4
1) Remove screw ❸ , and loosen the lock screw in
the feed rock cam.
2) Lightly pressing push-button ❶ , turn the hand-
wheel by hand.
3) When push-button ❶ bites, the sewing machine
will stop running.
4) In the aforementioned state, further pressing the
push-button ❶ , turn the handwheel by hand.
5) Aligning the marker dot (to be used for reference)
on the handwheel with marker line ❷ on the tim-
ing belt cover, release your hand from push-button
❶ .
6) Tighten the lock screw in the feed rock cam.
7) Attach screw ❸ in place.
1. Never press the push-button ❶ while
the sewing machine is in operation.
2. Be sure to operate the sewing machine
after tightening the lock screw.
3. Never operate the machine with screw
❸ removed.
4. The lock screw has a locking setscrew
to prevent the screw from loosening.
The lock screw head can be damaged
if you forcefully remove it.
– 8 –
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