Singer Inspiration 4205, Service Manual

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14 Singer Inspiration
Setting
Needle bar pendulum timing
Check
1. Set machine for widest zig-zag.
2. Hold a piece of paper on the needle plate and raise the presser foot.
3. Turn handwheel. As the needle is raising from the right perfo-
ration, the point of the needle should be moving to the left, lightly
touching the edge of the hole without enlarging it (d).
4. The needle should reach its peak of ascent slightly past center
of the two extreme position of the needle (e).
5. On the downward stroke, all lateral movement should cease
when the needle point is 5,5 to 8,5 mm above the needle plate
(g). The needle must return into the opposite hole precisely.
Adjustment
1. Remove the Bobbin winding unit.
2. Loose up the two Allen screws (a) and (b) of the spindle (c)
3. Turn the spindle to the front or to the back to reach the correct
adjustement .
3. Tighten the two screws (a).
4.Recheck and readjust if necessary.
5.Check for the disc stack radial play and readjust if necessary
6. Check the hook timing and re-adjust if necessary.
Disc stack radial play
When the arm shaft rotates, the discs cylinder rotate together, and without binds.
1. Loose the two Allen screws (a) and (b) of the spindle (c).
2. Hold the discs cylinder and push the spindle manually frontward or backward to eliminate
radial play.
- Frontward: Tighter
- Backward: Looser
3. Tighten the screws (a) and (b).
4. Turn hand wheel to verify the machine is running freely.
5. Check and adjust if necessary the needle bar pendulum
timing.
The follower must be located in the center of the discs
track. Turn the pattern selector to check the follower is cen-
tralized in the center of the track.
d
e
g