1.~~~titf~~A1
01
R ,
Qlb~'li(A909)
,
1i@
1ytt3~~114PJT5F
0
2.ll!fi!Bimtt•z!liM(SA26)
o
3.~~tf'aqj!j}}l
I
~
ll5Pfi5F
'
ttN1ytt
(A3oo)tt~n~
I
1ytiz~~4'm~ttil*l
0.4mm 1
ifflilJit~1iltiZ~ilffii"'Ftfjjl!UT~
~tiZ*ilLJ:.*I
o
••tt•xf-I:Z!ki**(SA26)
'
:jij&J:.tt•il
~(A101R)'
~Wi~!iti~1ytf'(A300)~~
z
rdi!Jt~
1116
o
~
\\
114/Fig. 4
1115/Fig.
5
lE
m
ZtiBe
lt
7.
2m
m ' iffl
~*'llil(A203)i!i
IIi
~1:62.7mm
1
1ri~tiBe4'~~
'
ftljtft~~
"'f:
1.~flA
ii~'iil~IUI
'
!fb~JUlWi
o
2.~flA
'iil~lfa"'F
'
.J..jJ&~~A81±itit&
;Zj!jJ!i=f'~2.7mm'
ftiJi/lil~~flJii.Jm;Z
!liM(SA22)fi~'iil
o
-3-
ADJUSTMENT
OF
NEEDLE BAR
1.Release the needle bar cover
(A
101
R),
pull
the motor belt (A909) to let the looper move
as
per the instruction of Fig.
4.
2.Siightly loosen the needle bar screw
(SA26).
3.Adjusting the height of
needle, please see
Fig.
5.
When the needle and looper (A300)
meet together, the distance between the tip
of
looper and the needle can not exceed
over 0.4mm. At the same time, the bottom
edge of the
looper's tip just passes over the
needle hole.
Fasten the needle bar screw (SA26), put
the
needle bar protective cover
(A
101
R)
back, and then readjust the clearance
between the needle and looper according
to
Fig.
6.
O
J=r
116/Fig. 6
STITCH LENGTH
The normal stitch length is 7.2mm, and the
tips of the feed
dog
(A203) should be set
higher than the
needle plate(A21
0}
by
2.
7mm.
If the stitch length is too long, check and
do
as
follows:
1.The tips of feed dog may be worn out,
then feed dog must be
replaced.
2.The feed dog may possibly sink, and the
height of the tips of feed dog over the
needle plate
is
less than 2.7mm
consequently. Loosen the feed
dog
holder
screw (SA22) and adjust the feed dog.
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