Janome NH40, Руководство по обслуживанию

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16
MECHANICAL ADJUSTMENT
NEEDLE SWING TIMING
The needle should start to swing between 7.7 and 8.7 mm above the surface of the needle plate when the machine
is set for zigzag stitching.
1. Remove the front cover (see pages 7).
2. Turn on the power switch, select the pattern " ", and set the machine at the maximum zigzag width.
3. Turn the handwheel toward you slowly with your hand until the needle start to swing.
Loosen the setscrew and turn the upper shaft shield plate in the direction of:
A: If the swing point is higher than 8.7 mm.
B: If the swing point is lower than 7.7 mm.
4. Shift the upper shaft shield plate to the left as close to the upper shaft sensor as possible.
(It should not touch the upper shaft sensor).
5. Check the swing point by turning the handwheel, then tighten the setscrew.
6. Attach the front cover.
Needle #14
7.7–8.7 mm
Surface of needle plate
Upper shaft shield plate
Setscrew
Upper shaft sensor
B
A