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 -

Fig.17
14.REGULATING THE LENGTH AND TENSION OF THE
TAKE-UP SPRING(Fig.18)
1) Regulate the tension
of
take-up spring by using a screw driver
in
the slot to regulate take-up spring tension by turning stud (1) as
required.
+...... more tension
-...... less tension
2) Regulate the length
of
take-up spring
To
adjust the amount
of
take-up spring movement, loosen screw
2 and set the take-up spring height by turning the entire tension
assembly 3 left
or
right, then securely tighten screw
2.
Fig.18
15.ADJUSTING BOBBIN THREAD TENSION(Fig.19)
Regulate bobbin thread tension regulating screw
1.
+...... more tension
- 9 -

-
......
less tension
Fig.19
16.ADJUSTING NEEDLE POSITION(Fig.20)
(CN2053R-1A)
Left, center and right needle position settings are available for
placement
of
both straight and zigzag stitching. (Fig.20)
To
position, push lever
in
and move to desired setting.
Do not make any needle position adjustment while the needle is
in
the fabric.
L
II
~
j_
Ill
~
.l.
II
l4
ij
a
ij
---
cm
Fig.20
-10 -

17.ADJUSTING THE STITCH WIDTH(Fig.21)
Ifone fixed value between the min-max
of
curvilinear stitch
is
needed, the adjustment can
be
made
as
follows:
1) Release the horizontal needle set screw
2;
2) Turn the spanner 3 to opposition (i.e. A position);
3) Lock the set screw 2;
4) Release the needle set screw
1;
5) Turn left the spanner 3
to
B position;
6) Then lock the set screw
1.
2
'
,..
~
~-
I"~
,.
/2
A
Fig.21
18. LOCKING UNIT FOR LINEAR STITCHING(Fig.22)
When linear stitch, turn the linear to
"A"
direction and locking
eccentric sleeve clockwise and secure the needle-bar swaying rack.
When the curvilinear stitching made, the eccentric sleeve should
be
turned counter-clockwise to
"B"
direction and locked securely onto
-
11
-

the machine housing, the release the swaying rack
of
the needle
bar.
19.ASSEMBLINGTHE
BELT
COVER(Fig.23,24)
On the table: while the V type belt cover is line with belt cover,
tighten the screw.
Under the table: after the assembling the belt cover the wheel
and belt should rotate freely.
Remarks: Fig 23 is suitable for CN2053R-2A.
Fig 24
is
suitable for CN2053R-1
A.
Fig.23
-12 -

Fig.24
20. MOUNT KNEE LIFTER(Fig.25,26)
(1) CN2053R-2A
1)
To
assure the convenience ofoperation, adjust the knee lifter
knee plate.
2)
In
the position
of
NO.2, while the NO. 2 control the NO.3; knee
can control the sway
of
needle.
While the No.2 controls the NO.4, knee can control the lift
of
press
foot.
145
mm
00
1
2·
Fig.2
5
-13 -

.26
(3) CN2053R-1A
1) Fix the knee lifter stand to the underside of the table 145mm
away from the table channel.
2) While turn to figure 16 shows, knee controls the presser to lift
or down.
3) While turn to figure 27 shows, knee control the stitch width.
21. MODES OF SEWING (CN2053R-1A)
1.
Straight sewing
When straight stitching, using the straight stitch presser foot,
needle and feed dog is better than using multi-function
ones.(Fig.27)
The horizontal width should be adjusted to O position. The linear
locking unit with swaying rack of locking needle shaft
can
be
used
in
combination with swaying rack of locking needle shaft
can be used
in
combination with special presser foot, needle
plate and material feeding tooth.
Fig.27
-
14
-

2.
Embroidery
Preparation before embroidery
1) It should be noted threat any free regulation can be made at
the horizontal needle distance between min-max, set the
vertical needle distance to Oposition and will; adjust the
knee-control parts to make-the component control the
movement
of
the sway
of
needle.(Fig.26)
2) Discharge the presser foot and needle plate and feeding dog
and install the embroidering plate.
3) Hold firmly the end
of
the surface stitches with your left hand;
turn out from the holes
of
the needle plate.
4) Make sure to stretch the material tightly between the internal
and external embroidering frames. Otherwise, the machine
will skip or break stitches or the material will get
creased.(Fig.28)
Fig.28
3.
ZIPPER SEWING
In
this mode, it is preferable to make use
of
the zippered
presser foot (see Fig.31
).
In
order to make the stitches more
accessible to the projection stitches, release the screw
B,
regulate the presser foot and the needle to the presser foot and
set the needle to left and right grooves A
of
the presser foot. The
-
15
-

mode
is
expected to be suitable for the following sewing.(Fig.29)
A
.29
4. HEM-WRAPPING MODE
In
this mode, the hem-wrapping presser foot should be used
(Fig.31)
Remove the multi-functional presser foot and replace it with the
hem-wrapping one. This
is
also a mode
of
straight sewing so the
needle set should be set to the central position. (Fig.32)
.31
Fig.32
-16 -

5.
STEM-WRAPPING MODE
In
the stem-wrapping mode, the special stem-wrapping
presserfoot, needle plate and feed dog should be used (Fig.33).
The needle should be set to the central position and the
horizontal needle distance set to 3mm. Then run the rougher
thread through the small groove A on the stem-wrapping presser
foot so that the sewing
of
this mode will be smooth.
6.
DECORATION SEWING(Fig.35)
J
; I
If
the left, central and right needle positions can be freely
changeable and the horizontal needle distance skillfully
controlled, the patterns
of
the decoration sewing will
be
well
achieved.
Fig.3S
-17 -

7.
CLEANING AND OILING THE MACHINE
The machine should
be
cleaned periodically to remove lint
and fluff, which may have accumulated around the working parts,
a machine
in
continuous use should be oiled frequently.
22. MAINTENANCE OF THE MACHINE
You should protect your machine and clean it every
day.
Remove lint and fluff which may accumulate around the working
parts like presser foot, needle plate, feed dog and rotating hook. A
machine
in
continuous use should be oiled and cleaned frequently.
23. MAIN SPECIFICATION
The height
of
hand lifter presser foot: 6.35mm
Upper wheel: model V belt wheel 74mm
The height
of
work: 130mm
-18 -