8.
ADJUSTING THE HEIGHT OF THE TOP FEED DOG
To adjust the height of the top feed dog, loosen setscrew
@
to
release the top feed dog. Then, move top feed dog
0
up or
down to obtain the desired height. The standard height of the
top feed dog is such that it juts 1.8 mm from the throat plate
surface when it is in the lowest position of its stroke. When
sewing light-weight materials, adjust the height of the top feed
dog so that it comes in slight contact with the bottom feed dog.
9.
PROHIBITED ADJUSTMENT
Never adjust supporting arm stopper screw
0
.
If the screw should be tampered with, the
normal motion of
the top feed dog will be disturbed and extremely
hlgh load
will be applied to other parts, resulting in shortened
life
of
1
1
1
10,
ADJUSTING THE PSESSURE OF THE TOP FEED DOG
I
.
~
--.
~
...
~
.~
-7
Loosen nut
0
and
turn adjusting screiv
@
In to Increase the
/
pressure of rhe top feed dog and the feeding power accordingly. The
following table shows standard height
0
of adjusting screw
@
.
'---
.~
(Cautions)
1.
If the top feed dog jumps with a louder noise during operation, turn the adjusting screw in until the noise
is
reduced.
2.
Do not operate the top feed dog with
its
loud noise uncorrected for a long time,or other related parts may be adversely affected.
3.
Do not give the top feed dog more pressure than necessary, or the sewing machine will be subjected to extra load which exerts
bad influence on the durability of the machine.
4.
It
should be noted that Dimensions
0
shown in the above table (heights to apply slightly higher pressure of the top feed dog)
are applicable to the longitudinal strokes of the top feed dog and the sewing speeds specified in the above table. Accordingly,
Dimension
0
may be increased to apply lower pressure of the top feed dog if the machine
is
operated
at
a
lower sewing speed
or with
a
smaller longitudinal stroke of the top feed dog than those specified in the table.
1
I
1.
CONVERSION BETWEEN MOJ-2500N AND MOK-2500N
For
MO?
Top
feed
dog
When converting the MOJ-?SOON to the MOK-?SOON and vice versa, replace the presser-
foot (asm) and the top feed dog. then adjust the top feed arm stopper, and the vertical
stroke
arid pressure of the top feed dog according to the following table:
I
I
MOJ-?SOON/UOK-?~OON/ Remarks
I
Top feed arm stopper
~
Refer to
"7.
ADJUSTING THE TOP
DIFFERENTIAL FEED RATIO".
1
Refer to "6. ADJUSTING THE
feed
1
4.5
-
6.5
1
5
-
6.5
stroke (mm)
I
VERTICAL STROKE OF THE TOP
,
FEED DOG".
Height of top feed dog 15.5
-
16.5
-
Refer to
"10.
ADJUSTING THE
adjust screw
(mm)
1
16,5
1
PRESSURE OF THE TOY FEED
I
DOG".
Please
do
not hes!tale lo conracr
obr
dlstr~bilto:~ or agents n vour area for further ~nforrnat~ons
whr
necessary
%Appear arld s~ecifcat~or> lsted in :hs instruc!ion rnariual
are
subjected to change wthout
not~ce
JUKl CORPORA1-ION
HEAD
OFFICE
BUSINESS
OFFICE
CABLE
JUKl
TOKYO
2-1 8-CHOME
KOKURYO
CHO
23
3
KABUKI
CHO
1
CHOME
TELEX
322967
232
2301
ChOFU
CITY
TOKYO
JAPAN
SHINJUKU
KU
TOKYO
160
JAPAN
PHONE
03(205)1188 1189 1190
1990
7
Printed
In
JaDafl
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