Brother RH-9820 Service Manual page 114

6. ASSEMBLY
A
Base of
bed
(Viewed from directly to
the left)
B
105
(Viewed from the side)
RH-9820
1) Apply adhesive (Threebond 1373B) to the four
ball bearings (1).
2) Insert the four ball bearings (1) into the holes in
the bed so that the layout of the balls (a) is in
an "X" pattern on the base of the bed as shown
in the illustration.
3) While pushing the four ball bearing stoppers (2)
onto the base of the bed, tighten the four
screws (3).
* At this time, insert the projections (b) of the
four ball bearing stoppers (2) into the
grooves (c) and check that the ball bearing
stoppers (2) are flush with the bed surface.
Install the two gears (6) to X feed shaft holder N
(9) so that the gear (6) with the shorter distance
between the thread hole and the edge is on the
right.
* While pushing the two gears (6) in the
direction of the arrow
tighten the four socket bolts (7).
1108B
1004B
at this time,
1005B