Brother Z-8550A Service Manual page 9
Electronic direct drive zigzag lock stitcher with thread trimmer
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Also See for Z-8550A:
- Instruction manual (90 pages) ,
- Parts book (70 pages) ,
- Brochure & specs (6 pages)
Table of Contents
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9. ADJUSTMENTS ...................................
9-1. Actuator position............................................... 67
9-2. Adjusting the safety switch position.................. 68
9-3. Thread tension spring....................................... 69
9-4. Presser foot height ........................................... 70
9-5. Feed dog height................................................ 70
9-6. Feed dog angle................................................. 71
sideways position ............................................. 71
condense stitching............................................ 72
9-9. Needle and feed timing..................................... 72
9-10. Needle bar height ........................................... 73
9-11. Needle zigzag forward/back position ............. 74
9-12. Needle zigzag sideways position ................... 75
9-13. Needle zigzag load ......................................... 76
9-14. Needle and rotary hook timing ....................... 76
9-15. Bobbin case holder bracket position .............. 77
(minute lifting amount).................................... 79
9-18. Adjusting the treadle....................................... 79
(8550A-A31, 8560A)....................................... 80
trimming (8560 only)....................................... 81
cam (8560A only) ........................................... 82
(8560A only) ................................................... 83
thread trimming (8560A only) ......................... 83
(8560A only, optional device) ......................... 84
(When "GrEASEUP" appears)..............
applying grease .............................................. 85
10-2. Applying grease ..............................................86
67
11. ELECTRICAL MECHANISM ..............
11-2. Control box internal configuration ...................89
11-3. Description of fuses ........................................90
11-4. Description of connectors ...............................92
11-4-1. Connector positions............................92
11-5. Troubleshooting ..............................................94
11-5-1. Troubleshooting procedure ................94
11-5-2. Diagnosis flowchart ............................95
11-5-3. Remedy ..............................................97
11-6. Wiring diagrams ............................................101
12. TREADLE UNIT................................
12-1. Types ............................................................103
12-2. Standard setting values ................................104
for treadle depression stroke ........................105
13-1. Installing the foot plug ...................................107
13-2. Connectors....................................................108
14. TROUBLESHOOTING......................
15. ERROR CODES ...............................
TABLE ..............................................
85
(fuses and fuse resistors) ...................90
(fuses and fuse resistors) ...................91
88
103
107
109
114
117
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Table of Contents
Troubleshooting
