Removal Of Upper Shaft Assy; Bobbin Winder, Upper Shaft, Needle-Presser Module - Brother SL100 Service Manual

Basic of Disassembly
2

Removal of Upper shaft assy

1. Remove the timing belt from the upper shaft assy.
2. Remove the screw (set screw, socket (FT) M5X5) from the thread take-up counter weight of upper shaft
assy.
3. Remove the two screws (taptite, bind S M4X10) to remove the two bushing pressers from the arm bed.
And remove the two lower shaft bushings of upper shaft assy from the arm bed, and then slide the
upper shaft assy in the direction of the arrow to remove the thread take-up counter weight of upper
shaft assy from the shaft of thread take-up lever.
→
Refer to 3 - 25 Disassembly of Upper shaft assy.
Mounting positions
Shaft of thread take-up lever

Bobbin winder, Upper shaft, Needle-presser module

Thread take-up
counter weight
Lower shaft bushing
Set screw, socket (FT) M5X5
2 - 20
Timing belt
Upper shaft assy
Lower shaft bushing
Bushing pressers
Taptite, bind S M4X10
Set Screw, Socket (FT) M5X5
Hex wrench 2.5 mm
Taptite, Bind S M4X10