Brother RH-9820 Service Manual Page 198
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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7. ADJUSTMENTS
RH-9820
189
6. Press the ENTER key (9).
The home position detection operation will be carried out,
and the offset value (B) will be saved.
NOTE:
If you continue to the next step without pressing the
ENTER key (9), the offset value will not be changed.
7. Check the results of the adjustments.
* If the adjustments are not correct, repeat steps 5 and 6.
* To continue with another adjustment, repeat the
adjustment procedure from step 4.
8. Press the TEST key (10).
Home position adjustment mode will end and the sewing
machine will return to home position standby.
7-35. Adjusting the needle up signal home position for the upper shaft and
upper shaft motor
NOTE:
• Before carrying out this adjustment, check that the adjustments in “6-18. Upper shaft motor mechanism: Standard installation of
upper shaft motor unit and belt tension adjustment)” and “6-10. Lower shaft mechanism: Belt (upper shaft - lower shaft)
installation and belt tension adjustment” have been carried out correctly.
• After carrying out this adjustment, be sure to carry out the procedure in “7-36. Adjusting the upper shaft stop position”.
1. Remove the face plate (1) and the upper cover (2).
2. Remove the rubber cap (3).
3. Insert the accessory pin (4) into the groove (6) in the balance collar from the hole (5) in the arm to stop the upper shaft from
turning. (Upper shaft: 22.5° position)
0768B
0767B
- RH-9820 1
- SAFETY INSTRUCTIONS 3
- DANGER 4
- CAUTION 4
- [3] Warning labels 6
- Belt cover 7
- CONTENTS 8
- 1. MACHINE SPECIFICATIONS 10
- 2. FUNCTION SETTINGS 11
- 0708B 0709B 12
- 2-6. Input checking method 24
- 2-7. Output checking method 27
- 3. READING/WRITING DATA 31
- 3-3. Data read/write mode 32
- 4. MECHANICAL DESCRIPTIONS 35
- 4-4. Feed mechanism 38
- 4-5. Presser foot mechanism 39
- 4-6. Cloth opening mechanism 40
- 4-7. Cutter mechanism 41
- 4-8. Looper mechanism 41
- 4-9. Spreader mechanism 42
- <-01> 44
- <-02> 45
- 5. DISASSEMBLY 47
- 5-3. Feed mechanism 50
- 5-3-2. X feed unit 51
- 5-3-3. Y feed unit 51
- 5-5. Spreader mechanism 53
- 5-6. Looper mechanism 54
- 5-8. Looper base mechanism 56
- 5-9. Needle bar mechanism 57
- 5-10. Lubrication 58
- 5-12. Upper shaft mechanism 61
- 5-13. Cutter mechanism 62
- 6. ASSEMBLY 63
- 6-1. Cutter mechanism 64
- B Assemble as shown in the 65
- D Insert the cutter arm pin 65
- 6-3. Zigzag mechanism 68
- Insert into the groove 69
- C Assemble as shown in the 79
- D Place the pulse motor Y 79
- E Belt tension adjustment 80
- (Viewed from the left) 84
- (Viewed from the front) 84
- Measurement 91
- 6-10. Lower shaft mechanism 94
- Should be no clearance 98
- 6-11. Looper mechanism 99
- (Clearance) 100
- (Viewed from underneath) 100
- 6-12. Spreader mechanism 101
- (When at 103
- Clearance： 103
- 6-14. Threading mechanism 104
- 6-15-1. Feed base 106
- (When at maximum retraction) 111
- 6-15-2. X feed shaft holder 113
- (Viewed from directly to 114
- (Viewed from the side) 114
- Base of 114
- 6-16. X feed mechanism 116
- A Assemble as shown in the 117
- Measurement position 121
- 6-19. Covers 124
- <-01 specifications> 130
- A Spring hook installation 132
- <-02 specifications> 134
- F Spring hook installation 135
- (When cylinder is at 137
- 6-23. Routing the harnesses 138
- 6-24. Routing the air tubes 140
- E Inserting the wicks 146
- Maintain a 147
- 7. ADJUSTMENTS 150
- Looper height 151
- 0487B 0488B 155
- Moves to left 156
- Moves to right 156
- 0.01 - 0.08mm 158
- CAUTION 166
- (When using a 173
- 2-pedal foot switch) 173
- 0.3 mm 181
- 184
- Needle plate 186
- value will not be changed 198
- 6. Press the TEST key (6) 200
- 8. ELECTRICAL MECHANISM 206
- 1199B 0692B 207
- 8-3. Description of fuses 208
- 8-4-1. Connector positions 209
- 8-5. Troubleshooting 215
- 8-5-2. Diagnosis flowchart 216
- 8-5-3. Remedy 219
- 9. ERROR CODES 228
- 10. TROUBLESHOOTING 234
- SERVICE MANUAL 236
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