Adjusting The Lift Of The Work Clamp Foot; The Moving Knife And Counter Knife - JUKI LK-1900BN Series Instruction Manual

7-3. Adjusting the lift of the work clamp foot

WARNING :
As the work is performed while the power is ON, never touch the switches other than the necessary
one so as to prevent accidents caused by the malfunction of switches.
❶
❸
❾
Max. 17 mm
At this time, be careful not to cause work clamp foot lever support plate ❼ to interfere with feed
bracket ❽ .
If the work clamp foot lever support plate interferes with the wiper, readjust the height of the
wiper using setscrew ❾ in the wiper installing base.

7-4. The moving knife and counter knife

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
❷
0.5 mm
❺
❹
❷
❺
❼
❽
❻
Throat plate
❹
❸
18.5 mm
❶
1) With the machine in stop mode, remove six set-
screws ❶ of the top cover, and take off top cover
❷ .
2) Apply L-shaped wrench ❸ to socket bolt ❺ of
clamp ❹ , and loosen the socket bolt.
3) Push down L-shaped wrench ❸ to increase
the lift of the work clamp foot, or pull it up to de-
crease the lift.
4) After the adjustment, securely tighten socket bolt
❺ .
5) If the right and left work clamp feet are not lev-
elled, loosen fixing screw ❻ and adjust the posi-
tion of the work clamp foot lever support plate ❼
to level them.
1) Loosen adjusting screw ❸ so that a clearance of
18.5 mm is provided between the front end of the
throat plate and the top end of thread trimmer le-
ver, small ❶ . To adjust, move the moving knife in
the direction of arrow.
2) Loosen setscrew ❺ so that a clearance of 0.5 mm
is provided between needle hole guide ❷ and
counter knife ❹ . To adjust, move the counter knife.
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