Power Transmission Chart - Baby Lock BL7800 Service Manual

2.

POWER TRANSMISSION CHART

(A) Generating mechanism of needle bar, thread take-up lever and zigzag movements
ZPM
(Zigzag pulse motor)
Zigzag connecting rod
Needle bar supporter
Needle bar
(B) Mechanism of feed dog and rotary hook movement
Needle
Rotary hook assembly
Vertical feed cam
Feed dog Drop plate
Feed stand
Lower shaft gear
Horizontal feed plate
Upper shaft
Needle bar crank rod
Needle bar clamp
Upper shaft
Horizontal cam pulley
Timing belt
Timing pulley D
Lower shaft
Horizontal feed shaft
- 3 -
Balance wheel
Balance wheel
FPM
(Feed pulse motor)
Horizontal feed arm
Side feed plate spring
Side feed plate