Application Of Disassembly/Assembly - Brother XM3700 Service Manual

3
Application of
Disassembly/Assembly
In this chapter, explains the disassembly and assembly of the each
module. When fix and replace the each module, use this chapter.
Disassembly
Assembly
Main frame and Covers ....................3 - 2
Main motor unit.................................3 - 6
Feed unit...........................................3 - 8
Needle threading mechanism.........3 - 19
Zigzag mechanism .........................3 - 24
Feed control mechanism ................3 - 26
Buttonhole and
Pattern selecting mechanism .........3 - 29
Upper shaft, Needle bar and
Presser foot unit .............................3 - 31
Upper shaft, Needle bar and
Presser foot unit .............................3 - 41
Buttonhole and
Pattern selecting mechanism .........3 - 51
Feed control mechanism ................3 - 53
Zigzag mechanism .........................3 - 56
Needle threading mechanism.........3 - 58
Feed unit.........................................3 - 64
Main motor unit...............................3 - 76
Main frame and Covers ..................3 - 78
3 - 1