Upper Shaft Motor Mechanism - Brother RH-9820 Service Manual

6. ASSEMBLY

6-18. Upper shaft motor mechanism

* Refer to the detailed descriptions on pages 112 to 114 for details on A to C in the illustration.
NOTE:
・ Check that the Y feed motor assembly and the pulse motor R assembly are installed before carrying out
this procedure.
If they are not installed, install them first.
・ After carrying out the procedure in "C Standard installation of upper shaft motor unit and belt tension
adjustment", be sure to carry out the adjustments in "7-35. Adjusting the needle up signal home position for
the upper shaft and upper shaft motor" and "7-36. Adjusting the upper shaft stop position".
B
111
C
RH-9820
A
1. Motor assembly
2. Socket bolts [5 pcs]
3. Timing pulley
4. Set screws [2 pcs]
5. Motor holder
6. Socket bolts with washers [3 pcs]
7. Motor cover
8. Belt guide
9. Screws [2 pcs]
0852B