The Moving Knife And Counter Knife (Shorter-Thread Remaining Type) - JUKI AMS-221F-2516 Instruction Manual

1-6. The moving knife and counter knife (Shorter-thread remaining type)

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
Length of thread remaining on the material at the end of sewing can be reduced.
For synthetic filament thread #20, the length of thread remaining on the material at the end of sewing is
reduced by approximately 1 mm. It should be noted that the shorter-thread remaining function cannot
be used in conjunction with the bird's nest reducing device. The length of thread remaining on the wrong
side of the material is shortened only at the end of sewing.
The shorter-thread remaining function can be used simultaneously with the thread clamp function. With
these combined functions, stable sewing is ensured even when sewing starts at a high speed.
❷
1.1 mm
❺
❻
❹
Throat plate
❸
18.5 mm
❶
– 88 –
Loosen adjusting screw ❶ so that a clearance
1)
of 18.5 mm is provided between the front end
of the throat plate and the top end of thread
trimmer lever, small ❸ . To adjust, move the
moving knife in the direction of arrow.
Loosen setscrew ❺ so that a clearance of 1.1
2)
mm is provided between needle hole guide
❷ and counter knife ❹ . To adjust, move the
counter knife.
3) Change over the setting of the memory switch
U322 to "shorter-thread remaining type".
After changeover of the memory
switch setting, the bird's nest reduc-
ing function cannot be selected.
In the case the adjusted state of the
shorter-thread remaining function
does not agree with the memory
switch setting, needle breakage can
occur.