Brother CE-5500PRW Service Manual page 38

Basics of Assembly
3
Phase matching of Upper shaft and lower shaft
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 vertical.
3. Pull the timing belt 7 and hang it on the timing pulley D 8.
4
Attachment of Tension pulley assy
1. Set the tension pulley assy. 1 to the rear cover assy., and then temporarily
tighten the 2 screws 1.
*Key point
• Fully tighten the screw 1 after performing "4 - 4 Adjustment :
Timing belt tension".
→ Refer to 3 - 63 "Assembly of Tension pulley assy".
1
Needle bar, presser mechanism / Upper shaft mechanism
Giza Tite
M5X16 1.18 – 1.57 N·m
1
8
4
Torque
1
2
7
7
3
6
3
Front Rear
5
1
2 - 23