Driveline - Brother XM3700 Service Manual

Outline of Mechanism Driveline
(A) Up and down movement of needle bar, movement of thread take-up lever and
zigzag movement of needle bar mechanism
Needle bar crank
Needle bar crank
rod
Needle bar block
shaft
Needle bar block
Needle bar
Needle
Z finger frame
Z finger
1
Thread take-up counter weight
Needle bar crank rod
Needle bar block
Needle bar
supporter
Needle
Thread take-up
counter weight
Needle bar
Zigzag
supporter
connecting rod
Worm gear
Upper shaft
Needle bar crank
Selecting cam
Needle bar block shaft
Zigzag connecting rod
Needle bar
1 - 3
Main motor
Motor belt
Timing pulley
Upper shaft
Worm gear
Pattern cam
Z finger Selecting cam
Z finger frame (C)
Z link
connecting rod
Zigzag link holder
Timing pulley
Pulley
Pattern cam
1
Z link connecting rod
Zigzag link holder
Motor belt
Main motor
Pulley