SAFETY DEVICE - PRESSER FOOT & NEEDLE CLAMP
20
1. Remove: Mains lead
2. Open Lamp Cover.
3. Check and make sure that when presser foot lever
"a"
and needle clamp safety lever
"c"
are in up potition, lever
"b"
of Safety lever cam turns off the micro switch.
4. Lower lever
"a"
or swing down needle clamp safety lever
"c"
to the right.
Check if lever
"b"
turns on the micro switch.
5. If not, lower lever
"a"
and swing down lever
"c"
to the right so that the micro switch is
turned off. Loosen screw
"e"
on safety lever
"d"
and adjust the position of safety lever
"d"
to get the gap 0
~
0.2mm as shown in Fig. 3.
6. Fasten screws
"e"
tightly.
a
b
b
c
Fig.1
Fig.2
UP
DOWN
SWITCH
ON
SWITCH
OFF
SWITCH
ON
SWITCH
OFF
UP
DOWN
0~0.2mm
Fig.3
d
e
2 mm
Summary of Contents for 745 -
Page 1: ...745 845 SERVICE MANUAL 2 2 5 5 1 3 5 NA 6 0 B 1 2 1 T P T P...
Page 18: ...a HEIGHT AND ALIGNMENT OF CLOTH PRESSER BAR 4a 5 b c 4 7mm...
Page 24: ...TIMING OF LOWER LOOPER 8a A B C D b a 5 2mm R1 Fig 1 Fig 2 Fig 3...
Page 51: ...ANNEX SETTING POSITIONS OF SL DF DIALS b c f d g e 2 1 C B A...
Page 61: ...M E M O...
