Adjusting The Lift Of The Work Clamp Foot; The Moving Knife And Counter Knife - JUKI LK-1901AN Instruction Manual

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.
1
3
!0
Max. 17 mm
At this time, be careful not to cause work clamp foot lever support plate 8 to interfere with
feed bracket 9 .
If the work clamp foot lever support plate interferes with the wiper, readjust the height of
the wiper using setscrew !0 in the wiper installing base.
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.
2
0.5 mm
5
4
2
5
8
9
7
Throat plate
4
3
18.5 mm
1
) With the machine in stop mode, remove six set-
screws 1 of the top cover, and take off top cover
2 .
2) Apply L-shaped wrench 3 to socket bolt 5 of
clamp 4 , and loosen the socket bolt.
3) Push down L-shaped wrench 3 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
5 .
5) If the right and left work clamp feet are not lev-
elled, loosen fixing screw 7 and adjust the posi-
tion of the work clamp foot lever support plate 8
to level them.
) Loosen adjusting screw 3 so that a clearance of
8.5 mm is provided between the front end of the
throat plate and the top end of thread trimmer le-
ver, small 1 . To adjust, move the moving knife in
the direction of arrow.
2) Loosen setscrew 5 so that a clearance of 0.5 mm
is provided between needle hole guide 2 and
counter knife 4 . To adjust, move the counter knife.
33
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