Upper Shaft And Lower Shaft Phase Matching; Tension Pulley Assy. Attachment; Tension Pulley Assy. Assembly - Brother XR9000 Service Manual

Main unit
12

Upper shaft and lower shaft phase matching

1. Rotate the upper shaft 1 until the trench on the upper shaft pulley 2 is at
the front.
2. Turn the lower shaft 3 to the point where the mark on the outer rotary
hook 4 is at the front, the larger feed cam 5 is at the rear, and the hole on
the lower shaft 6 is at the top.
3. Pull the timing belt 7 and hang it over the timing pulley D 8.
13

Tension pulley assy. attachment

1. Attach the tension pulley assy. 1 to the rear cover assy. with the 2 screws
1.
*Key point
• Perform "4 - 3 Timing belt tension.
1
13-1

Tension pulley assy. assembly

1. Align the boss 3 on the tension pulley holder 2 with the hole on the
tension pulley assy. 1, and secure the tension pulley assy. with the screw
1.
1
3 - 10
Main parts
Giza Tite
5X16
Screw, Pan (S/P washer)
M4X8
8
Torque
·
1.18 — 1.57 N m
Torque
·
1.18 — 1.57 N m
2
1
7
3
4
1
1
1
7
6
3
5
1
2
3