Brother Z-8550A Service Manual download pdf (Page 71)

7. ASSEMBLY

Z-8550A, 8560A

7-8. Covers

1. Window plate (8550A) 10. Thread guide

2. Pulse motor cover 11. Flat screw

3. Screws [3 pcs] 12. Rotary take-up mounting plate

4. Panel 13. Rotary thread take-up lever

5. Rear cover 14. Flat screws [3 pcs]

6. Screws [6 pcs] 15. Thread take-up guard assembly

7. Face plate packing 16. Screws [2 pcs]

8. Face plate

9. Flat screws [7 pcs]

1140B

Be careful of the knives.

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 127 128

Z-8550A 1
Z-8560A 1
SAFETY INSTRUCTIONS 3
DANGER 3
CAUTION 3
Environmental requirements 4
Installation 4
Cleaning 5
Maintenance and inspection 6
Oil pan 7
(For Europe) 7
CONTENTS 8
1. MACHINE SPECIFICATIONS 10
2. SEWING PATTERN 11
3. FUNCTION SETTINGS 12
3-3. Data initialization 23
Green display 24
Orange display 24
DANGER 30
0) so that the 31
(Initial setting is “0”) 31
4. USING CF CARDS 32
5. MECHANICAL DESCRIPTIONS 41
5-3. Zigzag mechanism 43
5-4. Presser foot mechanism 44
5-5. Feed mechanism 46
5-6. Lubrication mechanism 49
6. DISASSEMBLY 55
6-1. Covers 56
6-2. Presser foot mechanism 57
6-3. Needle bar mechanism 57
6-4. Zigzag mechanism 58
6-5. Rotary hook mechanism 60
6-6. Lubrication mechanism 61
6-7. Feed mechanism 61
<Knife unit> 62
7. ASSEMBLY 64
7-2. Feed mechanism 65
7-3. Lubrication mechanism 66
7-4. Zigzag mechanism 67
7-5. Needle bar mechanism 68
7-6. Rotary hook mechanism 69
7-7. Presser foot mechanism 70
7-8. Covers 71
Be careful of the knives 71
CAUTION 73
Setting for 1st turn 75
Setting for 2nd turn 75
9. ADJUSTMENTS 76
9-3. Thread tension spring 78
9-4. Presser foot height 79
9-5. Feed dog height 79
9-6. Feed dog angle 80
9-9. Needle and feed timing 81
9-10. Needle bar height 82
9-13. Needle zigzag load 85
Maximum zigzag width 86
CAUTION 87
9-18. Adjusting the treadle 88
Should not touch 93
10-2. Applying grease 95
11. ELECTRICAL MECHANISM 97
11-3. Description of fuses 99
Z-8550A, 8560A 100
11-4-1. Connector positions 101
11-5. Troubleshooting 103
11-5-2. Diagnosis flowchart 104
11-5-3. Remedy 106
11-6. Wiring diagrams 110
12. TREADLE UNIT 112
. Types 112
1) Entering signal settings 114
5) Ending the settings 115
13. STANDING OPERATION PEDAL 116
13-2. Connectors 117
14. TROUBLESHOOTING 118
15. ERROR CODES 123
LCD display character list 126
SERVICE MANUAL 128

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Brother Z-8550A Service Manual Page 71

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