Brother STAR 120E Service Manual Page 9
- Page / 62
- Table of contents
- BOOKMARKS
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II. TROUBLES AND CHECK POINTS
1. Machine skips stitches.
...........................................................................
9
2. Fabric does not feed.
..............................................................................
9
3. Fabric does not feed straight.
..................................................................
9
4. Upper thread breaks at start.
..................................................................
9
5. Upper thread breaks during sewing.
.......................................................
9
6. Upper thread breaks during reverse sewing.
..........................................
9
7. Lower thread breaks.
..............................................................................
9
8. Needle breaks.
........................................................................................
9
9. Noise.
......................................................................................................
10
10. Forward and reverse feedings differ.
......................................................
10
11. Improper length of buttonhole legs.
.........................................................
10
12. Improper buttonhole size against button size.
.........................................
10
13. Unbalanced patterns.
..............................................................................
10
14. Needle hits needle plate when pattern selector dial is turned.
................
10
15. Fabric gathers.
........................................................................................
10
16.The stitch shown in the pattern indication window is different
from the one being sewn.
........................................................................
10
17. The light does not turn on even after the power is turned on.
..................
11
18. The motor does not run.
...........................................................................
11
19. The motor does not run smoothly or it does not run at a high speed.
(B375, B376 AND B377)
..........................................................................
12
20.Even after the machine is started, it stops suddenly.
(B375, B376 AND B377)
..........................................................................
12
21.The speed at which the machine operates cannot be adjusted.
(B375, B376 AND B377)
..........................................................................
12
22.The needle does not stop in the down position. (B377)
The needle does not stop in the up position. (B375 AND B376)
..............
12
23.The machine does not operate if the reverse sewing button is
pressed or does not operate at a slow speed if the button is
pressed while the machine is running. (B375, B376 AND B377)
.............
13
24.The machine stops immediately after bobbin winding is started.
(B375, B376 AND B377)
..........................................................................
13
25. The machine does not operate when the foot controller is
depressed. (B375, B376 AND B377)
.......................................................
13
- SERVICE MANUAL FOR 1
- B373 (STAR110, PS-2200)E 1
- B375 (STAR120E, PS-2300) 1
- B376 (STAR130E, PS-2400) 1
- B377 (STAR140E, PS-2500) 1
- GENERAL INFORMATION 2
- CONTENTS 2
- I. PRINCIPAL MECHANISMS 3
- 1. MECHANICAL CHART 4
- 2. POWER TRANSMISSION CHART 5
- II. TROUBLES AND CHECK POINTS 9
- STANDARD 21
- ADJUSTMENT 21
- HOOK CLEARANCE) 25
- 9. ADJUSTMENT OF FEED 28
- 11. POSITION OF FEED DOG 30
- 12. HEIGHT OF FEED DOG 31
- 13. HEIGHT OF PRESSER BAR 32
- (B375, B376 AND B377) 33
- 29. NEEDLE THREADER 48
- 30. NEEDLE THREADER 49
- Push up 50
- 32. NEEDLE THREADER 51
- 33. NEEDLE THREADER 52
- IV. HOW TO CHANGE THE PARTS 55
- 1. REMOVING THE COVERS 56
- 2. LAMP REPLACEMENT 57
- 3. LEAD WIRES ARRANGEMENT 58
- <SS-VR PCB ASSY> 61
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