17
990D
Correct Setting:
The clearance between the needle and the fixed needle guard should be 0.1 to 0.4 mm.
To adjust:
1. Remove the presser foot and needle plate and lower the needle to its lowest position.
2. Loosen the setscrews A and adjust the position of the fixed needle guard.
3. Tighten the setscrews A.
4. Attach the presser foot.
TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE FIXED
NEEDLE GUARD
The clearance between the
needle and fixed needle guard
Fixed needle guard
Needle #14
0.1 — 0.4 mm
Tip of fixed needle guard
To be touch
Chaining finger
Fixed needle guard
Chaining finger
(Needle plate setting knob is to be “S”)
Setscrew A
Содержание 990D
Страница 1: ...SERVICE MANUAL PARTS LIST 990D...
Страница 18: ...16 990D TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE LOWER LOOPER NEEDLE GUARDS...
Страница 30: ...28 990D PARTS LIST 1 22 2 7 18 3 4 19 15 20 16 11 11 12 13 14 14 5 10 9 14 14 8 6 19 21 21 8 8 17...
Страница 48: ...46 990D PARTS LIST 2 3 4 5 1 6 7...