Zoje ZJ0628 User Manual
{1.
MAIN SPECIFICATION
Sewing
Stitch length
Needle
Presser foot lift
speed
bar
stroke
2000s.p.m.
0-9mrn
33.2mm
8rnm
(Manual)
t5mrn (Knee)
Needle
Lubrication
Reverse
feeding mechanism
DPX
17
Automatic
Have
22"'
l
and the mach
2000spm can
work.
3. CONNECT THE CLUTCHLEVER WITH THE PEDAL ( Fig.2 )
L The optimum tilt ang!e
15
approximately
2. Adjust
{C)
and
Draw
3.The
clockwise
'Wheel (G).
be reversed
can
the
power
plug
4. Adjust the tension
Motor Vertical
of
the V-belt is a slack
depressed
at
degree.
Clutch
Bar (B)
balance wheel should rotate counter-
when
The
the
Cover
run
viewed from the outside
direction
by
reversing (turning over 180 degree)
of
the motor.
Position Screw (E).
center
of
the
of
of
of
1 0-20mm when the belt is
the
of
Pedal
(A)
is
(D)
so
that Clutch Lever
line.
of
Baiance
the motor pulley rotation
V-belt (F)
The
belt
by
by
proper tension
finger.
turning
REPARATION
l)
Cleaning the machine
Before leaving
coated with
hardened and contaminated by dust during storage and
shipment.
test
be
This
2}
Examination
Although each machine is confirmed strictly and
before leaving the factory, the machine parts may
loose
or
deformed after long distance transportation
the factory, the machine parts are
rust~preventive
grease must be removed with gasoline.
AND
LUBRICATION ( Fig.3 )
grease, which may
be
with jolt. A thorough examination must be performed
after cleaning
see
if
uneven resistance or abnormal noise.
adjustment must
operation.
3)0iling
( l) Required amount
Line (A)
Line
the machine. Tum the balance wheel to
there is running obstruction, parts collision,
If
these exist,
be
made
accordingly before run in
of
oil
on
the oil reservoir: Max. oil level
(B)
on the oil reservoir:
Min.
oil level
If oil level goes down under Line (B), oil cannot
be distributed
causing
the parts a seizure.
to
each
part
of
the machine, thus
C:!>
Replenishing
Always
high
speed sewing.
use
only
Be
No.l8
special machine
sure
to replenish oil
before starting operation. ·
(3) Replacing oil
To
replace oil, remove Screw
After completely draining off
reservoir
reservoir with fresh oil
and
securely tighten Screw (C), then
oiL,
to
(C)
to drain oil.
clean
oil
Line
the
fill
for
(A)
oil
the
js.
REPLACE NEEDLE ( Fig.4 )
Turn the balance wheel to lift needle
the
upper end
Screw (B) while keeping the
needle(C) leftward,
the bottom
Clamp Screw (B).
of
its stroke. Loosen Needle Clamp
long
fully insert the needle shank up to
of
the needle socket. Then tighten Needle
bar
groove
(A) to
of
the
ZOJE
SEWING
MACHINE
CO.,
LTD.
6.RUN IN OPERATION (Fi .5)
Run-in operation is required for a new sewing
machine.
a considerable length
arm
the red oil hole (D).
( l 000-1500spm)
through Oil Check Window (C).
30 minutes. After a lapse
during which the working speed is increased
and the machine runs sufficiently well, the high speed
2000spm
work.
or
a sewing machine !eft out
of
time.
1) Remove Rubber Plugs (A) on the
and replenish sufficient amount
2) Lift Presser Foot (B).
3)
Run the machine at a low speed
to
check oil distributing condition
4)
Perform run-in operation at 1000-i500spm for
of
can
be adopted according to the nature
of
operation for
of
oil, and also to
one month
top
of
gradually
of
the
service
of
the
7. THREADING ( Fig.6 )
To.
thread the needle thread, raise needle
of
its
upper end
perform threading
bobbin thread, hold the
tum
the balance wheel to lower the needle
stroke, lead the thread from spool and
as
shown in Fig.6. To draw the
end
of
the needle thread and
bar
bar
to the
and
~-®----
~-~----·
then to lift
thread and the bobbin thread is drawn up.
of
needle thread and bobbin thread frontward
presser foot.
it
to
its
highest position. Pull the needle
~
--==~,
-~
?
Put
the ends
under
Js.
WINDING ADJUSTMENT (
l)
The wound bobbin thread should
tight, if not, adjust the winding tension by turning
Tension
bracket.
with little tension, otherwise, Bobbin
or deform.
a cylindrical shape as shown in Fig.7 (a), loosen Set
Screw (B)
Bracket (C) leftward
as
if
bracket leftward.
Set
length
This can be adjusted by adjusting Screw (E)
winder stop latch.
Stud Nut (A)
Note: nylon
2) When the wound thread layer does not present
shown in Fig.7 (b), move the bracket rightward, but
thread is wound as shmvn in Fig.7 (c), move the
After adequately positioning the bracket, tighten
Screw (B).
3) Do not overfill the bobbin. The optimum
of
thread
or
of
bobbin winder tension bracket and slide
will
of
bobbin winder tension
polyester thread should
(D)
or
rightward.
fill about
ff
thread is wound
SO%
of
Fig.7)
be
neat and
be
wound
might break
bobbin capacity.
of
bobbin
'
~
TYPE:
ZJ0628
ADD:
a
DAMAIYU
b
c
DEVELOPMENT
d
ZONE,
YUHUAN,
ZHEJIANG
..:..9.:...:S::.:.E:.:T:......:S:.:T:.;.:IT.::..C.::.H=·
i)
Stitch length can
2}
The figures on face (B)
length in mm.
3)
Reverse feeding starts when Reverse Feed
Lever (C) is depressed,
forward again
if
-=L=E:.::...N:....:G:....:T...:::.H:.:..::A...:::.N_;_D~R-=EV_ERS
be
set by turning Dial (A).
of
dial show stitch
and
the machine
Reverse Feed Lever (C) is released.
will
teed
_____
"E_FE_E_D_I_N_G_(
F_i~g._8_)
-----·~
10. ADJUST THREAD TENSION
Generally, the thread tension is to be adjusted
according
conditions.
form
abnormal stitches cause puckering and thread
break-age, the tension
thread must
bobbin thread tension is
(b), turn the thumb nut counterclockwise
the needle thread tension,
regulating screw
thread tension (See Fig. 10,11)
In
bobbin thread tension is too strong, as shown in Fig. 9
turn the thumb nut clockwise
(c),
needle thread tension,
regulating screw
bobbin thread tension.
to the sewing materials and sewing
Fig.9 shows different stitch
should be as shown
of
be
adjusted accordingly.
In case needle thread tension is too strong
too
of
bobbin
case needle thread tension
or
of
bobbin case to decrease the
forms.
Normal stitch
in
Fig.9 (a). When
needle thread and bobbin
weak, as shown in·Fig.9
or
tighten the tension spring
ca..<;e
to
increa<se
is
too weak
to
increase the
loosen the tension spring
(J3'i
to
decrease
the bobbin
or
or
.Adjustment
Loosen the stopper screw (B) and
egulating ring
he
thread take-up spring, or move the regulating ring
C) rightwards to increase the
djustment, tighten the screw
. Adjustment
Loosen the nut
egulating screw (F) clockwise to decrease the tension
f the thread take-up spring,
crew
'hen tighten the nut (D)
of
the thread take-up spring stroke
move the
(C)
leftwards to decrease the stroke
stroke. After the
(B)
.
of
the thread take-up spring tension
(D) and screw (E) and turn the
or
tum
the regulating
(F) counterclockwise to increase the tension.
and the screw (E).
of
~HEJIANG
PROVINCE,
CHINA
TEL: 800857-6715
FPLX:
0576-7332702
!t2.TIME
L Adjusting the height
When the needle bar
nonnally the measurement between the surface
needle plate and the upper end
22.3mm.
2. Time needle motion to hook motion
Before adjustment,
then turn the
needle bar reaches its lowest point. Continue turning
and allow the
on its upward stroke. With needle bar in this position.
the hook point (A) should be at the center
needle{B),
hook point and the upper
should be 2mm. further the clearance berween
book point and the needle hollow shouid be about
0.05
to
NEEDLE MOTION TO HOOK MOTION
of
the needle bar (Fig. 13)
i~,
at its highest point,
of
of
the needle eye ls
set stitch length to minimum,
balance wheel toward you until the
needle bar to raise about 2.4mm whik;
of
and nonnaily the measurement between the
end
of
the needle eye (C)
0,
l mm.
(Fig.l3,l4)
I I
the
------------------------------
the
the
3. REPLACE ROTATING
l)
Lift
needle bar to the highest position
strok.::.
2)
Remove
needle and bobbin case
3)
Loosen Screw
down Hook Positioner
4) Loosen Screw (D)
down the rotating hook
5) lnstaiiing the hook can be done in reverse
sequence. Note that Needle
surface
clenrance of0.5-D.7mm
the throat plate and feed dog, take down
(C)
of
hook positionel and take
{A).
of
rotating
(B)
of
Hook Positioner (A) should align
between them.
HOOK
hooL
then take
and the convex
(Fig.15)
of
its
\Vith
a
I
I
L
++
:)~}····--
(~}-
__
..
___
..
·-
..
_
_________
J
The
lubrication
by
Oil Adjusting Screw (A) as
J) Tum Oil Aqjusting .:,crew' (A) clockwise
increase oil
coumcrciockwise
2) To adjust the amount
(A)
within 5 turns. When t;ie Screw (A) is fully
tightened,
Screw
Minimurn.
the
(A)
of
the rotating hook can be adj ustei
f(>Jlows:
<1nd
turn Oil A4jtLsting Screw (A)
to decrease
oil
amount
is
fullv loosened, the oil amount is
o;1
of
oil
is
Maximum<,
by
turning the Screw
When the
to
[t5.ADJUST
1.
Lift adjustment
The
normal height
8mm, yet
actual requirement. Loosen the pressure regulating
screw(C) and
presser foot, loosen the screw
bar upwards and downwards
presser
will
presser foot(A)
adjustment must be made
procedure 3 stated below for proper way.
Pressure adjustment
2.
Tum
increase the pressure
counterclockwise
3.
Adjustment
presser foot
The. presser foot {A)
vibrate altemateiy with equal height when machine is
in operation. but it can
requirements.
walking foot (B) and decrease vibrating height
presser foot (A), adjust
it
foot.
NOTE:
result
pressure regulating screw(C) clockwise to
PRESSER FOOT (Fig.17 ,18)
of
presser foot (Fig.17)
of
the presser foot (A) should be
can be adjusted.
lift the presser bar lifter
The changeable lift
in
the alternate movement height
and
to
decrease it
of
the aliemate vibrating height
(A)
and the walking foot
To
increase vibrating height
if
necessary. according to
to
(D)
and move presser
to change the lift
of
the presser foot (A)
the
walking foot(B), therefore,
to
it accordingly. See
of
the presser foot (A)(Fig.17)
of
the presser foot
lfyou
desire.
(B)
(Fig.17)
and
the
walking foot
be
adjusted according
as follows:
Down
the presser
raise the
{A)
to
of
of
of
actual
of
of
bar lifter and turn balance wheel until the presser foot
(A)
is
slightly separate from the needle plate, loosen
screw (E) and depress the presser foot (A)
needle plate and then tighten the screw (E). To
decrease vibrating height
increase vibrating
balance wheel until the walking foot (B) is slightly
separate
depress the walking foot (B)
then tighten the screw (E).
4. Movement height
walking foot (Fig
the
toot
the materiaL To adjust, loosen the net (H) move
from the needle plate, loosen screw (E)
The
thickness
height
of
The
lift should be
height
18)
of
the lift
of
the walking foot (B) and
of
the presser foot (A):
to
reach needle plate
adjusm1ent
the materia! sewn should control
of
the presser toot and walking
just
of
presser foot and
enough for clearance
to
reach
Tum
crank rod upwards to increase the up and down
movement, and downwards to decrease it, then tighten
nut (H).
5. Time walking foot
This is the normal timing when turn the balance
wheel toward you, after lowering the presser bar
the walking
than the needle eye comes to,
raises, the walking toot
toot
after the needle eye has left the feeder. This is
reason that the walking foot
goods while the needle
(B}toneedle
{Fig17)
(B) should reach the earlier
and
when me needle
(B)
should
(B)
must tightly hold
is
passing the·. goods for
me
due
feeder
avoiding irregular stitches. To adjust this loosen the
two screws
cam (F) faster
tighten the screws (G).
(G)
and adjust
or
slower
the
rotating position
as
may
be
desired,
of
and
the
the
and
the
(B)
the
the
and
and
of
the
the
the
the
16.ADIDST FEED DOG Fi .19,20,21,22,23,24
1.
Ac\justment of the height
l )
Tum
balance wheel until feed dog is lifted
to
its highest position"
2)
Loosen the screw (A)
shaft crank (right).
3)
Move the feed
shown by the arrow in Fig. 19a to fix the height
feed dog(C). the standard height
that top
surtace(D).
screw
of
the reed dog is 1 mm above the needle plate
4;
After the adjustment, be sure to tighten the
of
feed dog (Fig.19,20)
of
the
feed lifting rock
bar
(B) in the direction
of
the feed dog(C) is
ofthe
a b
2. Adjustment
1 ) Minimize stitch lengit
2 )
highest position.
3)
crank and move the
shown
The standard position
distance between the center
feed dog{C) and the edge
32.lmm.
of
the position
Tum
balance wheei to iift feed dog to its
Loosen the screw (A)
feed
in
Fig.21 a to fix the position
of
the feed
of
feed
dog
(Fig.21 ,22)
of
feed rock shaft
bar (B) in the direction
of
the feed dog.
dog
(C) is that the
of
the needie hole on the
of
the needle plate
is
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