Position Of The Display Drum Indicator; Upper Looper Shifting Cam - ELNA 745 Service Manual

POSITION OF THE DISPLAY DRUM INDICATOR

1. Remove: Mains lead - Front cover
2. Make sure if tension cams and levers are set in proper positions when selecting sewing
program 1 "SAFETY 4 THREAD". (See and Check Page E).
3. Select sewing program 10 "COVER HEM/CHAINSTITCH".
4. Bring the needle bar to its lowest position by turning a handwheel toward you.
5. Loosen screw "a" and turn the upper looper shifting cam "b" until the hook of the looper
follower "c" falls into the V-shaped hollow of the cam "b" (See View A ). Check if a
cam "b" and looper follower "c" are positioned as shown in View B .
6. Fasten screw "a" and recheck if the upper looper shifting connector "d" is pulled
up by a spring.
view A
1.0~1.5mm
view B
b
c
& UPPER LOOPER SHIFTING CAM
b
B
d
c
a
A
a
2 mm
b
c
F