Global WF 9995-SK Parts list manual

GLOBAL
WF
9995-SK
Instruction & parts manual
www.globalsew.com
[email protected]

CONTENT
Operation Instruction
I.
Main
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1
2. Operation preparation•
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1
3.
Installing
th
e motor·
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. 1
2
4.
Co
nn
ecting the clutch
lev
er
to
the pedal ··
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5. Insta
llin
g belt guard
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6.
Installing the bobbin winder
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7. Lubrication
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8.
Trial run
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9.
Hook
oil
amount adjustment
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. 5
10
.
Oil
pump supply adjustment
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. 5
I I. lnstalUng the needle
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6
12. Coordination among needl
e,
thread
and
sewing materials•··
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13.Threading the needle thread •·
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14
.Winding adjustment .
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15.
Setting the stitch length and controlling the reverse sewing
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16
. Setting the position of pres
se
r bar
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9
17
. Adjusting the
pr
essu
re
of presser foot
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1
8.
Adjusting the
th.read
tension
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.. 9
19.
Adjusting
th
e thread take-up spring
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10
20.Adjusting the tension
of
needle thread
and
bobbin thread
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11
12
2
1.
Timing
adj
ustment between the needle
and
th
e rotating hook.
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13
22.
Installing
and
removing rota
tin
g hook
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23
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In
stalling
feed
do
g ..
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24.
Feed dog horizontal adjustment
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25.
Stitch
len
g
th
error adjustment
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26
. Feed timing adjustment
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27.Adjusting
the
tension releasing mechanism
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28.
Upper
feed
adjustment ...
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17
29.
Adjusting presser foot alternate lift mechanism
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30.
Adjusting the lift amount of presser foot with walking presser
foo
t
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31
. Adjusting the clearance between presser
foot
and
wa
lk
ing presser
foot
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32. Periodical chcan
in
g
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33
. Vertical
edge
trimmer
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23
Parts Catalogue
I.
Arm
and
bed
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24~
27
2.
Arm
shaft vertical shaft needle bar and thr
ea
d take-up .
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28~
29
3.
Fee
d dog lift
and
thread looping ...
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4. Feed adjustment •·
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5.
Presser
foot
.
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6.
Upper feed
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7.
Edge
trimmer
mechanism
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40~4
I
8.
Oi]pump
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42~43
9.
Oil reservoir and accessories ·
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44~45
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

1. MAIN SPECIFICATIONS
Typ e
Material
Medium and heavy duty
Wdlx .sewi ng speed 2000spm
Max .stitch length
8mm
Ma x .thickness
&mm
Alt ernate presser fool lift volume 3.5 -5. Smm
Needle
DPx17(20#~23#)
Pres s er
. by hand
8mm
foo lift
by knee
16mm
Hook Au to-lubricating big r ota t in ghook
Lubrication
Auto lubrication
Motor
power 370W (use for wewing)
2. PREPARATION
(1) Cleaning the machine
Before leaving the factory, the machine parts are coated with
rust-preventive grease, which may be hardened and contami-
nated by dust during storage
and shipment. This grease must
be removed with gasoline.
(2) E-xamination
Though eve rymachine is confirmed by strictinspection and
test before leaving the factory,the machine parts may be loo se
or deformed after long distance transporation with jolt. A
thorough examination must
be performed after cleaning the
machine.
Tum the balance wheel to see if there is running
obstruction, parts collision,
uneven resistance or abnormal
noise.
If these exist, adjustment must be made accordingly
before
run - in operation.
.. INSTALL THE MOTOR (Fig.1)
Align Motor Pulley Groove (B) and Balance Wheel Groove
(A) by moving the motor leftward or rightward.
- 3-
1
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

4.
CONNECT THE CLUTCH LEVER WITH THE PEDAL(Fig.2) I
a. The optimum tilt angle ofpedal (A) is approximately 20 - 30
deg.
b. Adjust Clutch Cover (D) so that Clutch-Lever (C) and Draw Bar (B) run in line.
2
~
c. The balance wheel should rotate counter-clockwise when viewed from the outside of Balance Wheel (G). The direction ofthe
motor pulley rotation can be reversed by reversing (turning over 180 deg .) the power plug of the motor.
d. Adjust the tension ofV-belt (F) by turning Motor Vertical Position Screw (E). The proper tension of the V-beltis a slack of 10-20
mm when the belt is depressed
5. / INSTALLING BELT GUARD (Fig 3)
3
The belt guard should be installed for safety.
-4-
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

6.
4)
/INSTALLING THE
BOBBIN
WINDER
(Fig
4)
Align pulley(B)
of
the bobbin winder with the outside
of
the
belt, and
there
should
be
a
proper
clearness
between
them, so
that
pulley
(B)
can
be
contacted
with
the
belt
when stop latch thumb lever (A) is depressed, there
by
the
belt
drives
prlley
(B) white the
machine
running,
the
bo-
bbin
winder
should
be
parallel
with
belt
slit
(E),
of
the
bable, the fasten with two wood screw(D).
7.
_____
__
_
(OILING
(Fig
5)
1.
Required amount
of
oil.
Line(A)on the oil reervoit: Max.oil level.
Line(B)on the oil reservoir: Min.oil level.
lf
oil level goes
down under line(B), oil cannot bedistributed to each part
of
the machine, thus cauaing the parts a seizure.
2.
Replenishing
Always use only No.18 special machine oil for high speed
sewing.
Be
sure to replenish oil to Lue (A) before starting operation.
3. Replacing oil
4
5
To replace oil, remove Screw(C)to drain oil. After completely draining off
oil.
clean the oil reservoirand securely tighten
Screw(C), then fill the reservoir withfresh oil.
-5-
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

8 . .. _ . I RUN-IN OPERATION(Fig.6)
When the machine left out of operation for a quite long
time and used again, remove the red rubber plug on top
of the machine head, oil it thoroughly, the lift the pre-
sser foot and
run at a low speed of 1000~1500spm,
observe the sparkling condition through oil windew(c),
as the lubr.ication is well, keep the running test at the
low speed about 30 minutes, then increase the speed
gradually, after months running
to perfect its perfonnance,
then increase up to proper sewing speed.
-6 -
6
0
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

9.
/LUBRICATION
ADJUSTMENT(Fig.7)
A.
Adjusting
oil
pump.
In
ordinary operation, adjustment is not required for the
oil pump.
If
oil splashing does not occur in the oil check
window when the machine runs at a low,speed ( approx.
2000spm),reduce the clearance
of
the by-pass hole.
B.Adjusting the lubrication ofrotating book.
The lubrication
of
the rotating hook can be adjusted
by
Oil
Adjusting Screw
(A)
as
follows:
7
1)
Turn Oil Adjusting Screw
(A)
clockwise to increase oil and tuen Oil Adjusting Screw
(A)
counter clockwise to decre-
ase oil.
2) Oil Adjusting Screw ( A ) adjusts oil amount within
5
turns. When Oil Adjusting Screw ( A )
is
fully tightened, oil amo-
unt is maximum.
3)
Readjustment depends
on
temperature, sewing speed and the like. In practice, oil amount can bejudged as follows:
remove the throat plate and place a piece
of
paper on instead,
run
the machine for about 20 seconds, then check the oin
splashed on the paper.
10.
/OIL
PUMP
SUPPLY
ADJUSTMENT
(Fig
8)
Generally no adjustment is
for
oil pump, When the ma-
chine is running at a low speed, observe the oil screen.
If
no
oil splashing,close the clearance.
-7-
0.5-1.0
8
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

11.
_ 1
REPLACE
NEEDLES
(Fig
.
9)
Turn the balance wheel to
lift
needle bar to the upper
end
of
its stroke. Loosen Needle Clamp Screw A.While
keeping the long groove
of
the
needle
leftward fully
insert the needle shank up to the bottom
of
the needle
socket Then tighten Needle Clamp Screw
A.
Note: Fig.(b):insufficient insertion.
Fig.(c):wrong direction oflong groove.
(Long
groove)
X
b
9
a
X
C
12.
/
COORDINATION
AMONG
THE
NEEDLE
THE
THREAD
AND
THE
MATERIAL(Fig10)
8
The needle thread is left-twisted, the bobbin thread is left or righHwisted. Holding the thread, twist it with right hand
in
the direction
of
arrow shown in Fig 10,
if
it is tight, it is left-twisted, co-ntrarily, it is right-twisted.
The needle is
DPxl
7 20#~24# (JK-6320CXDPxl7 25#), the needle number must be fitted for the materials. Sewing too
heavy the weight
of
rna-terials,the needle would be breaking and skipping stitch and thread breaking for its too thin,
if
the needle is too thick,
it
would damage the clothes for its large needle hole. There for, the selectionofneedle and
thread must be fitted
to
the materials.
-8-
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

13
THREADING(Fig.11)
11
When threading the needle thread, raise the needle bar to its highestposition, lead the thread from the spool and pass it
in
the orderinstructed.
(1) Lead the thread downthrough the three-eye thread guide
(Don
the top.
(2) Pass down
tbru
the left hole
of
thread
retainer@,
then down thru the lower hole
of
thread retainer@.
(3) Pass .down
tbru
between the two tension disc ® ,
(4) Pass up
thru
the hook
of
thread take-up
spring@.
thru thread regulator@, thru thread
guide®and
up thru the hole
of
thread take-up lever
(j) .
(5) Down thru thread guide ® ,
® ,
and needle bar thread
guide@,
then pass the thread from the left thru the eye
of
needle@,
draw outthe thread approxlOOmm from the needle eye.
When drawing the bobbin thread, hold the tip
of
the needle thread by hand, turn the balance wheel to lower the needle
bar and then to lift it to its highest position. Pull the needle thread and then the bobbin thread is drawn
up.
put the tips
of
the needle and bobbin thread toward front under the presser foot.
14 I WINDINGADJUSTMENT(Fig.12)
12
M
~
a b
C
- 9 -
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

1)
The
wound
bobbin thread should
be
neat
and
tight,
if
not,
adjust
the
winding
tension
by
turning Tension Stud
Nut(A)
of
bobbin
winder
tension
bracket.
Note:
nylon
or polyester thread should
be
wound
with
little tension, otherwise,
Bobbin
(D)
might break or
defonn.
2)
When
the
wound
thread
layer
does
not present a cylindrical shape
as
shown
in
Fig7(
a),
loosen
Set
Screw
(
B)
ofbobbin
winder tension bracket and slide Bracket
(C)
leftward or rightward
If
thread is
wound
as
shown in Fig,7
(b),
move
the
bracket lightward,
but
ifthread is
wound
as
shown in
Fig.
7 (c
),
move
the
bracket leftward.
After
adequately
positioning
the
bracket, tighten Set Screw(B).
3)
Do
not
overfill
the
bobbin.
The
optimum length of thread will fill
about
80%
of
bobbin
capacity. This can
be
adjusted
by
Adjusting Screw(E) ofbobbin winder stop
latch.
15
/
ADJUST
THE
PRESSURE
OF
PRESSER
EOOT(Fig.13)
Stitch length
can
be set
by
turning stitch length regulating
dial (A). The figures on the stitch length regulation dial
plate
(B)
indicate
the stitch length.
Reverse sewing can
be
obtained when
feed
reverse lever
(C)
is depressed and forward sewing can
be
restored
auto-
matically
when
feed reverse lever
(C)
is released.
16 14)
-10-
13
14
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com