Adjusting The Zigzag Width - JUKI LZ-2280A Series Instruction Manual

4-2. Adjusting the zigzag width

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.
❸
❺
❹
❷
* For the LZ-2284A and -2287A, the needle throwing width has been factory-set
to 8 mm at the time of shipment. It should be noted, however, the needle
throwing width can be increased to 10 mm at the maximum by changing the
throat plate and feed dog and changing the location of stopper screws ❹
and ❺. In this case, adjust the height of the needle bar so that the blade
point of the hook passes the upper end of the needle eyelet when the nee-
dle throws to the leftmost end of its zigzag stroke. In the case the needle
throwing width exceeds 8 mm, however, the sewing machine should be
operated at 4,000 sti/min or less.
1. Take care not to tighten the screws ❹ and ❺ too firm causing the breakage of the knob ❶.
2. For the LZ-2284A, the maximum needle throwing width of the standard zigzag stitching is 5 mm.
3. It is necessary to bring the needle bar to its upper stop position to carry out adjustment of the
needle throwing width. Turn the handwheel by hand to check that the needle does not interfere
with the presser foot.
❶
❷
LZ-2280A, 2284A, 2287A
❶
❸
❶
❷
– 13 –
(1) Adjusting the zigzag width
The zigzag width is adjusted by the knob ❶.
Push the lever ❷ with your finger.
1)
2) Turn the knob as you are pushing the lever and
set the pointing line to a desired zigzag width
which is indicated by the zigzag width scale ❸ in
mm.
3) Release the lever, and the knob will be locked up
in the given position.
(2) Pattern inversion adjustment
* In the case the LZ-2287A is used for sewing a
scallop pattern, the pattern can be inverted.
Normally, the right pattern is sewn.
Push the lever ❷ with your finger.
1)
2) Turn the knob as you are pushing the lever and
set the pointing line to a desired zigzag width
which is indicated by the zigzag width scale ❸ in
mm.
3) Release the lever, and the knob will be locked up
in the given position.
(3) Adjusting the needle position
* JUKI models LZ-2280A, -2284A and -2287A
have the needle position changing lever by
which the needle position can be changed as
desired.
To change the needle entry point, move needle position
changing lever ❶ as shown in the figure.
For the LZ-2284A, loosen screw ❷ and move needle
position changing lever ❶ to adjust the needle entry
point. After the adjustment, tighten screw ❷.
Presser foot 22580369
Throat plate 10041010
Feed dog 10047017