HEIGHT-CLEARANCE-ANGULAR POSITION OF LOWER LOOPER
6
0.05 mm
65mm
2.8~3.1mm
3mm
2mm
b
c
a
x
2.8mm
R1
1. Remove: Mains lead - Sewing foot
2. Make sure that there is no axial play on looper shaft
"x"
.
3. Loosen screw
"a"
, adjust height of lower looper as shown and tighten screw
"a"
.
4. Adjust clearance of overlock needle guard.
5. Insert a new needle (
No.90
) in R1 and check height and orientation of needle bar.
6. Remove needle plate and machine base.
7. Loosen screw
"b"
just enough to be able to shift lever
"c"
.
8. Adjust lever
"c"
axially to obtain a clearance of less than
0.05mm
between point of looper
and needle.
(See Fig.2)
9. Turn the handwheel towards you and bring lower looper to its far left swing position and
adjust lever
"c"
angularly to obtain
2.8
to
3.1
mm between point of looper and the left side
of the overlock needle.
(See Fig.1)
10. Recheck clearance and carefully tighten screw
"b"
.
Fig.2
Fig.1
Содержание 745 -
Страница 1: ...745 845 SERVICE MANUAL 2 2 5 5 1 3 5 NA 6 0 B 1 2 1 T P T P...
Страница 12: ...1a REMOVING MACHINE BASE COVER 1 Remove Mains lead 2 Remove Machine base Unit 1 by loosening screws a a 1 a a...
Страница 18: ...a HEIGHT AND ALIGNMENT OF CLOTH PRESSER BAR 4a 5 b c 4 7mm...
Страница 24: ...TIMING OF LOWER LOOPER 8a A B C D b a 5 2mm R1 Fig 1 Fig 2 Fig 3...
Страница 35: ...MOVING CUTTER AND VERTICAL FEED TIMING 14a R1 A a B d c Fig 2 Fig 4 Fig 3 Fig 1 2mm 0 5 0 5mm 1 0 1 5mm...
Страница 51: ...ANNEX SETTING POSITIONS OF SL DF DIALS b c f d g e 2 1 C B A...
Страница 53: ...d ANNEX SETTING POSITIONS OF SL DF DIALS h i Z k j p SL Dial DF Dial Fig 3 Fig 4 i A n k a Fig 2 view Z view Z...
Страница 61: ...M E M O...
