Brother b831 Service Manual page 18

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[U NEEDLE BAR ROCKING SHAFT MECHANISM
Procedures
1.
2.
3.
4.
5.
Thread take-up lever
Remove two flat screws O and remove side plate O-
Loosen screw O-
Loosen screw O and remove thread take-up shaft 0 while raising the tip of oil regulator reservoir 0.
Remove thread take-up lever O. (The thread take-up lever slide block disconnects.)
Insert a wedge to needle bar rocking connecting bar 0 and remove needle bar rocking shaft assembly 0.
0
REVERSE SWITCH MECHANISM
S)
1 2-pin plug
o
o
o
o
o
o
o
o
Terminal pin (black)
Terminal pin (white)
Procedures
1.
Loosen flat screw 0 and remove actuator bar 0.
2.
Remove two flat screws 0 and remove micro switch case 0 and washer 0.
3.
Remove two screws 0 and remove micro switch O.
4.
Remove the terminal pin from the 12-pin plug.
- 1 5 -

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B835B832B836B837B838B882

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