T-Belt (Y-Guide) Attachment - Brother PR655 Service Manual

Main unit
19

T-belt (Y-guide) attachment

1. Attach the Y tension pulley 1 and the plain washer 7 X 2 to the Y tension
plate assembly, and then attach the 2 set of retaining rings E4.
2. Loosen the 2 screws 1 securing the Y driving shaft pulley 2.
3. Hang the T-belt B60S3M579 over the Y tension plate assembly's Y tension
pulley 1 and the Y driving shaft pulley 2, and then attach the Y tension
plate assembly to the base frame with the 2 screws 2 (one each on left and
right).
*Key point
• Temporarily tighten the 2 screws 2 first. Firmly tighten them
after completing 4 - 30 "Y belt tension".
4. Align the Y-belt presser 3 with the T-belt's highest point, attach the Y-belt
presser 3 to the Y-carriage, and then secure them with the 2 screws 3.
5. Firmly tighten the 2 screws to secure the Y driving shaft pulley 2.
Tightening torque of screw:
1
2
3
Feed unit
0.78 - 1.18 N-m
Set Screw, Socket (CP)
0.78 — 1.18 N-m
M3X3
Screw, Pan (S/P washer)
Hand start
M4X10
Taptite, Bind P
0.59 — 0.78 N-m
M3X14
3 - 90
Retaining rings E4
3
Torque
Torque
Torque
1
1 2
1
2
2 1
3