Adjusting The Feed Base X Home Position And Y Home Position - Brother RH-9820 Service Manual

7. ADJUSTMENTS

7-34. Adjusting the feed base X home position and Y home position

NOTE:
* Before adjusting the X home position, check that the adjustment in "6-16. X feed mechanism: Standard installation position for
motor unit (idle gear adjustment)" has been carried out correctly.
* Before adjusting the Y home position, check that the adjustment in "6-7. Y feed mechanism: Standard installation of motor unit"
has been carried out correctly.
1. Remove the left and right work clamp plates (Z).
187
(A)
(B)
2. While holding down the
POWER switch at the ON side (2).
0763B
3. Press the start switch (3).
The motors will carry out home position detection, and then
the sewing machine will switch to home position adjustment
mode.
* At this time, "X" will appear in the display (A).
4. Press the
display (A) so that "Y" appears.
* "X" or "Y" should be displayed while this adjustment is
carried out.
[When "X" is displayed]
The motor (θ) for driving the looper base will be turned off,
so that the looper base and needle bar gear block can
be moved by hand.
[When "Y" is displayed]
The X-feed motor, Y-feed motor and motor (θ) for driving
the looper base will all be turned on, so that the looper
base and needle bar gear block cannot be moved by
hand.
0972B
0819B
RH-9820
and keys (1), push the
or key (4) as necessary to change the
0749B