Consew CN2053R-1A User manual

CN2053R-1A
CN2053R-2A
CN2073R
INSTRUCTION MANUAL
AND PARTS BOOK
£DNSEW:

CONTENTS
1.
Application
..................................................................
1
2.
Secure operation
.........................................................
1
3.
Caution before operation
................................................
1
4. Lubrication
..................................................................
1
5.
Selection of needle and thread
.......................................
2
6.
Inserting the needle
......................................................
3
7.
Replacing the bobbin case
.............................................
3
8.
Threading the bobbin
...................................................
4
9.
The installation
of
bobbin ........................................................6
10.Threading the machine...........................................................7
11.
Adjusting stitch length.............................................................?
12.Adjusting presser foot pressure..............................................8
13.Adjusting needle thread tension .............................................8
14. Regulate the length and tension
of
the take-up spring............9
15.Adjusting bobbin thread tension .............................................9
16.Adjusting needle position......................................................10
17.Adjusting the stitch width ......................................................
11
18.Locking unit for linear stitching .............................................
11
19.Assembling the belt cover.....................................................12
20. Mount knee lifter...................................................................13
21. Modes
of
sewing...................................................................14
22. Maintenance
of
the machine ................................................18
23. Main specification .................................................................18
- I -

1.
APPLICATION
This series
of
zigzag sewing machine is used to sew straight,
zigzag and embroidery stitches on thin, medium and thick material
for garments, bed articles, shoes, towels and wall carpet.
2.
SECURE OPERATION
1) The operator should be retrained and understand this
manual very well before operating.
2) All safety equipment should be fixed very well while running
the machine.
3) Turn offthe power when changing sewing accessories (like
the needle, presser foot, needle plate, feed dog and bobbin
case).
4) Maintenance and adjustment
of
the machine should be done
by a professional technician.
5) The electrical requirements should be managed by
an
electrician or professional technician.
3.
CAUTION BEFORE OPERATION
To
avoid damaging the machine, do the following:
1) Clean the machine thoroughly and add enough oil before first
usage.
2) Check the normalcy ofvoltage before first usage.
3) The upper whee! shou!d rotate
in
the direction facing the
operator.
4.
LUBRICATION (Fig.1,2)
1) Rotate the upper wheel to the oil hole; add one
or
two drops
of oil.
2) Add one or two drops of oil wherever
an
arrow is marked
in
the diagram.
3) Add a little oil to the sign "B" on the gear.
4) Add enough oil
at
the sign "A"
on
the upper cover.
5) The suggested lubrication oil is lily white sewing machine oil
or HT-T machinery oil.
- 1 -

Fig.1
5.
SELECTION OF NEEDLE AND THREAD
Select the appropriate thread and needle according to the
different sewing material as follows:
Applicable kind thin Medium heavy Heavy
of
material material material
Max
size
of
120 60 30
thread
Needle size #10 #12---#16 #18---#19
(11100mm) (80-100) (110-120)
Needle type 1910-05(135x9)
Other equal suitable size thread usable
- 2 -
I}

6.
INSERTING THE NEEDLE(Fig.3)
Turn the hand wheel and raise the needle barto the highest
position, then
loosen the needle tightening screw
1.
Insert the needle
in
the
needle bar and push it
up
as far as it will go.
Make sure its long groove faces toward the front. Tighten needle
set screw1 securely.
Fig.3
7.
REPLACING THE BOBBIN CASE(Fig.4,5)
Raise latch
1.
Then pull out the bobbin case 2.
To
reinsert the bobbin case, open latch 1 and place the case on
shaft 2. While the latch is open,
fit
case hook 3
fit
into location
4.
Then press the case inside and close the latch.
Fi
.4
- 3 -

4
Fig.5
8.
THREADING THE BOBBIN
0
Fig
.6
(1) CN2053R-1A/CN2053R-2A
a) Put the bobbin onto the winding shaft. Push the thread
adjustment plate 9 and wind the thread.
b)
Adjust the screw 8 to change the tension of the winding
thread.
c)
Move the pre-tension
10
to
adjust the thread evenness of
- 4 -

the bobbin
..
(2) CN2053R-1A/CN2053R-2A
a) Stop the motion
of
needle by loosening stop-motion screw
(1
).
Hold hand wheel with left hand and turn stop-motion
screw toward you with right hand.
b) Place bobbin on bobbin winder spindle (3), pushing it on as
far as it will go.
c) Pre-tension(1)
+......More tension.
-......Less tension
3) Push latch (2)
in
the direction indicated by arrow (A), then start
the machine.
Bobbin winder spindle (3) rotates in the direction indicated by arrow
(8).
To
adjust the amount
of
thread on bobbin, loosen screw (4) on
latch (2) and swing the latch (2) away from you oftoward you.
Swing latch (2) away from you.
For less thread on bobbin, swing latch (2)toward you, ifthread
winds unevenly
on
bobbin, loosen screw(5) and move pre-tension
(6) up or down, as required, and tighten screw(5).
Threading the pro-tension
for
bobbin windin!;I
Fig.6.1
- 5 -

9.
THE INSTALLATION OF THE BOBBIN(Fig.7,8,9,10)
1) Put the bobbin into bobbin case. Pull thread into notch (1) and
draw it under tension spring (2).(Fig.7)
2)Pull the thread out from slot 2 on end ofspring 1.(Fig.9)
3)Pass it through the bobbin case thread guide (1) and allow
about 60mm
of
thread out
of
the bobbin.(Fig.10)
Fig.7
Fi
.9
Fig.10
- 6 -

10.THREADING THE MACHINE(Fig.11,12,13,14)
1) Raise needle bar to the highest position, then pull the thread out
and through A,
8,
C,
D,
E and
F.
2)
As
shown
in
figure
14,
thread from forward to back.
3) Pull about 100mm
of
thread out.
F
C"
~I
,~-
I
(
f
B
FE···,
11
•
11.
ADJUSTING STITCH LENGTH(Fig.15)
Regulating the stitch length
/A
JY
7Fig.12
To
regulate the stitch length, turn feed regulating dial
1
left
or
right as required,
+
......
to lengthen
-
......
to shorten
Changing the reverse feed
Push lever 2down
for
reverse feed and release for forward feed.
To
regulate the reverse stitch length, turn thumb screw 3 left
or
right as required.
+......
to lengthen
-
......
to shorten
- 7 -

12.ADJUSTING PRESSER FOOT PRESSURE(Fig.16)
To
regulate the presserfoot pressure, turn pressure regulating
screw1 left to increase or right to reduce pressure.
Fig.16
13.ADJUSTING NEEDLE THREAD TENSION(Fig.17)
Regulate the needle thread tension with tension regulating knob
1 by turning it left to strengthen
or
right to reduce pressure.
+
......
more tension
-...... less tension
- 8 -