typical TW3-P335 User manual

INSTRUCTION BOOK // PARTS CATALOGUE
CYLINDER ARM COMPOUND FEED
LOCKSTITCH SEWING MACHINE
TW3-P335
Address: str. Teatralnaya 2 / 202A,
Dnipro, UKRAINE
Website: www.Overlock.com.ua
Phone: [phone]
Mail: [email protected]

ADD: WANPING TOWN, WUJIANG CITY, JIANGSU
PROVINCE, CHINA
TEL: [phone]
FAX: [phone]
POST. CODE: 215223
Http://www.typicalwpchina.com
E-mail:[email protected] Printed in Mar. 2006
TYPICAL SEWING MACHINE WANPING MACHINERY CO.,LTD.
Please don't adjust and repair the machine by non-professionals,except adjusting stitch.
Specifications subject to change without notice

CONTENTCONTENT
Operation InstructionOperation Instruction
Parts ManualParts Manual
1. Brief instruction
2. Main technical specifications
3. Stitch length adjustment/reverse stitching
4. Adjusting the lifting amount of alternating presser foot
5. Winding the bobbin thread
6. Adjusting the bobbin thread tension
7. Threading the needle thread/adjusting the tension of needle thread
8. Maintenance
9. Oiling
10. Lubricating the rotating hook
11. Lubricating the machine head
12. Adjusting the feed dog
13. Pre-adjusting the needle height
14. Adjusting the position of needle and the needle hole
15. Adjusting the position of the bottom feed dog
16. Position of the needle and the rotating hook
17. Adjusting the lifting amount of alternating hook
18. Top feed adjustment
19. Needle thread tension releasing
20. Bobbin winder
1. Brief instruction
2. Main technical specifications
3. Stitch length adjustment/reverse stitching
4. Adjusting the lifting amount of alternating presser foot
5. Winding the bobbin thread
6. Adjusting the bobbin thread tension
7. Threading the needle thread/adjusting the tension of needle thread
8. Maintenance
9. Oiling
10. Lubricating the rotating hook
11. Lubricating the machine head
12. Adjusting the feed dog
13. Pre-adjusting the needle height
14. Adjusting the position of needle and the needle hole
15. Adjusting the position of the bottom feed dog
16. Position of the needle and the rotating hook
17. Adjusting the lifting amount of alternating hook
18. Top feed adjustment
19. Needle thread tension releasing
20. Bobbin winder
1
1
1
1
2
2
2
3
3
4
4
5
5
6
6
7
7
8
8
8
1
1
1
1
2
2
2
3
3
4
4
5
5
6
6
7
7
8
8
8
1. Machine casting components
2. Needle and presser foot components
3. Rocking shaft bracket components
4. Thread take-up components
5. Thread tension and thread tension releasing components
6. Upper shaft and rocking shaft components
7. Rocking shaft components
8.Feed adjustment components
9.Vertical shaft
10.Lower feed components
11.Lower shaft and rotating hook
12.Knee lifter control components
13.Accessories
1. Machine casting components
2. Needle and presser foot components
3. Rocking shaft bracket components
4. Thread take-up components
5. Thread tension and thread tension releasing components
6. Upper shaft and rocking shaft components
7. Rocking shaft components
8.Feed adjustment components
9.Vertical shaft
10.Lower feed components
11.Lower shaft and rotating hook
12.Knee lifter control components
13.Accessories
9-10
11-12
13-14
15-16
17-18
19-20
21-22
23-24
25-26
27-28
29-30
31-32
33-34
9-10
11-12
13-14
15-16
17-18
19-20
21-22
23-24
25-26
27-28
29-30
31-32
33-34

This series machines adopt compound feed
mechanism with large amount of alternating presser
foot lifter which assures the sewing capability of
hard materials. The worktable of the small type of
cylinder enlarges the working space.
These machine are widely used in manufacturing
clothes, bags, leather products and trimming of the
shoe, cushion and suitcase.
This series machines adopt compound feed
mechanism with large amount of alternating presser
foot lifter which assures the sewing capability of
hard materials. The worktable of the small type of
cylinder enlarges the working space.
These machine are widely used in manufacturing
clothes, bags, leather products and trimming of the
shoe, cushion and suitcase.
1. Bref introduction1. Bref introduction 2. Main specifications2. Main specifications
3. Stitch length adjustment/reverse stitching
(Fig.1)
3. Stitch length adjustment/reverse stitching
(Fig.1)
1.Adjust the stitch length by turning nut 1;
2.When reverse sewing, push nut 1 to mark R as
as possible.
much
1.Adjust the stitch length by turning nut 1;
2.When reverse sewing, push nut 1 to mark R as
as possible.
much
11
22
4. Adjusting the lifting amount of the presser
foot (Fig.2)
4. Adjusting the lifting amount of the presser
foot (Fig.2)
Open the rear cover 1, loosen screw 2, and move it up
and down as required.
Open the rear cover 1, loosen screw 2, and move it up
and down as required.
Model
Max.sewing speed
Max.stitch length
Needle bar stroke
Presser foot lift height
Model
Max.sewing speed
Max.stitch length
Needle bar stroke
Presser foot lift height
NeedleNeedle
Cylinder diameterCylinder diameter
LubricationLubrication
Motor powerMotor power
Max. lifting amount
of presser foot
Max. lifting amount
of presser foot
TW3-P335TW3-P335 TW3-P335VTW3-P335V
2400s.p.m2400s.p.m
6mm6mm
33.4mm33.4mm
10mm by hand, 14mm by knee10mm by hand, 14mm by knee
7mm7mm
DP 17 14#~18#DP 17 14#~18#
By handBy hand
370w370w
46.5mm46.5mm
HookHook
TW3-P335BTW3-P335B TW3-P335VBTW3-P335VB
StandardStandard StandardStandard 1.4 times1.4 times 1.4 times1.4 times

33
44
55
1. Put the bobbin into the bobbin shaft 2;
2. As Fig.3 shows, draw out the thread and winding
clockwise to the bobbin several times;
3. Before winding, press sown the winding shaft 2
and the hook gib 3;
4. Adjusting the bobbin 1 thread tension by the
screw 4;
5. When the bobbin is full, the bobbin winder will
automatically stop.
If the winding is abnormal, loosen the screw 5,
and as required, move the thread guide 6, then
tighten the screw 5.
1. Put the bobbin into the bobbin shaft 2;
2. As Fig.3 shows, draw out the thread and winding
clockwise to the bobbin several times;
3. Before winding, press sown the winding shaft 2
and the hook gib 3;
4. Adjusting the bobbin 1 thread tension by the
screw 4;
5. When the bobbin is full, the bobbin winder will
automatically stop.
If the winding is abnormal, loosen the screw 5,
and as required, move the thread guide 6, then
tighten the screw 5.
5.Winding the bobbin thread(Fig.3)5.Winding the bobbin thread(Fig.3)
1. Draw out the bobbin thread;
When the bobbin thread is drawn out, the
bobbin should run as the arow goes.
2. Adjusting the bobbin thread tension by screw 1.
6. Adjusting the bobbin thread tension(Fig.4)
1. Threading as the Fig shows;
Pass the thread to the eye of the needle from
the left (Fig. Arrow)
2. Adjusting the needle thread tension by the screw
1.
1. Threading as the Fig shows;
Pass the thread to the eye of the needle from
the left (Fig. Arrow)
2. Adjusting the needle thread tension by the screw
1.
7. Threading the needle thread /adjusting the
tension of the needle thread(Fig.5)
7. Threading the needle thread /adjusting the
tension of the needle thread(Fig.5)

66
77
The above data is due to the normal situation.
If the machine is used frequently, the interval
of the maintenance should be shortened.
Maintenance for rotating hook(Fig.6)
1. Clean the rotating hook with brush every day,
and constant use needs more frequent cleansing.
2. Clean the rotating hook thoroughly every week.
As follows;
a. Open the cover plate and lift the needle bar to its
highest point;
b. Take out the bobbin case and the bobbin;
c. Release the position block 1;
d. Loosen the screw 2 and take out the hook point;
e. Turn the balance wheel until the point 4 and 5
reach at the same height;
f. Take out the rotating hook and clean it with oil.
g. Installation is a reverse process. Make sure that
the position block 1 is in the groove 6;
h. Close the cover plate.
The above data is due to the normal situation.
If the machine is used frequently, the interval
of the maintenance should be shortened.
Maintenance for rotating hook(Fig.6)
1. Clean the rotating hook with brush every day,
and constant use needs more frequent cleansing.
2. Clean the rotating hook thoroughly every week.
As follows;
a. Open the cover plate and lift the needle bar to its
highest point;
b. Take out the bobbin case and the bobbin;
c. Release the position block 1;
d. Loosen the screw 2 and take out the hook point;
e. Turn the balance wheel until the point 4 and 5
reach at the same height;
f. Take out the rotating hook and clean it with oil.
g. Installation is a reverse process. Make sure that
the position block 1 is in the groove 6;
h. Close the cover plate.
8. Maintenance8. Maintenance
Clean the rotatinghook clearance
Normal oiling
Front parts oiling
Check the oil box
Clean the rotating hook
Upper feed driving eccentric oiling
Clean the rotatinghook clearance
Normal oiling
Front parts oiling
Check the oil box
Clean the rotating hook
Upper feed driving eccentric oiling
Once a day
Twice a week
Twice a week
Once a week
Once a week
Once a year
Once a day
Twice a week
Twice a week
Once a week
Once a week
Once a year
9.Oiling(Fig.7)9.Oiling(Fig.7)
The machine must be oiled at the mark (arrow)
twice a week.
The machine must be oiled at the mark (arrow)
twice a week.

88
99
1. Take out the bobbin case;
2. Oil the mark(arrow) with one or two drops every
day;
3. Insert the bobbin case.
1. Take out the bobbin case;
2. Oil the mark(arrow) with one or two drops every
day;
3. Insert the bobbin case.
10. Lubricating the rotating hook(Fig.8)10. Lubricating the rotating hook(Fig.8)
1.Loosen the face plate;
2. Oil the moving parts as the fig shows twice a
week;
3. Install the face plate.
1.Loosen the face plate;
2. Oil the moving parts as the fig shows twice a
week;
3. Install the face plate.
11. Lubricating the machine head (Fig.9)11. Lubricating the machine head (Fig.9)

1010
1111
1212
1. Positioning the feed dog in the direction of
sewing(Fig.10)
a. Loosen the screw 2;
b. Adjusting the feed dog as required;
c. Tighten the screw 1;
The feed dog must be of the same distance
from the left and the right of the needle cutout.
2.Positioning the feed dog in the direction of
sewing(Fig.12)
a. Set it to the max stitch length;
b. Loosen the screw 2 to turn the crank 1 to the left;
tighten the screw 2 until it prop up the surface 3
of the shaft;
c. Loosen the screw 4;
d. Move the feed dog as required;
e. Tighten the screw 4.
When the stitch length is at the max, the front
and the rear clearance between the feed dog
and the needle plate groove should be the same.
1. Positioning the feed dog in the direction of
sewing(Fig.10)
a. Loosen the screw 2;
b. Adjusting the feed dog as required;
c. Tighten the screw 1;
The feed dog must be of the same distance
from the left and the right of the needle cutout.
2.Positioning the feed dog in the direction of
sewing(Fig.12)
a. Set it to the max stitch length;
b. Loosen the screw 2 to turn the crank 1 to the left;
tighten the screw 2 until it prop up the surface 3
of the shaft;
c. Loosen the screw 4;
d. Move the feed dog as required;
e. Tighten the screw 4.
When the stitch length is at the max, the front
and the rear clearance between the feed dog
and the needle plate groove should be the same.
12. Adjusting the feed dog12. Adjusting the feed dog
Move the needle bar 1 (by screw 2) up and down,
and as required, adjust it to the right position.
When the needle bar is at its lowest position,
the clearance between the needle plate and the
needle bar should be 15 cm.
Move the needle bar 1 (by screw 2) up and down,
and as required, adjust it to the right position.
When the needle bar is at its lowest position,
the clearance between the needle plate and the
needle bar should be 15 cm.
13.Pre-adjusting the needle height(Fig.12)13.Pre-adjusting the needle height(Fig.12)

1313
1414
1. Loosen the rock shaft 1 and the presser foot 2;
2. Adjust the stitch length to 0 , and lift the n dle
bar to its highest position;
3. Insert a new needle, and loosen the screw 3, 4, 5, 6;
4. Turn the balance wheel and pass the needle
directly through the feed dog;
5. Move the needle bar frame 7 as required;
6. Tighten the screw 3, 4, 5;
7. Move the position pin 8 to make it touch the
needle bar frame 7, and tighten the screw 6.
When the stitch length is at the the needle
must enter the hole exactly in the middle.
ee
0,
1. Loosen the rock shaft 1 and the presser foot 2;
2. Adjust the stitch length to 0 , and lift the n dle
bar to its highest position;
3. Insert a new needle, and loosen the screw 3, 4, 5, 6;
4. Turn the balance wheel and pass the needle
directly through the feed dog;
5. Move the needle bar frame 7 as required;
6. Tighten the screw 3, 4, 5;
7. Move the position pin 8 to make it touch the
needle bar frame 7, and tighten the screw 6.
When the stitch length is at the the needle
must enter the hole exactly in the middle.
ee
0,
14.Adjusting the position of the needle
and the needle hole(Fig.13)
14.Adjusting the position of the needle
and the needle hole(Fig.13)
1. Adjust the stitch length to its max;
2. Loosen the screw 1 so the driving eccentric
wheel 2 can turn on the shaft;
3. Adjust the needle bar to its lowest position;
4. Turn the eccentric wheel 2 to make the throw of
eccentric upward, and turn it a bit as required;
5. Tighten the screw 1;
6. Test it as required.
Set the stitch length to its max, adjust the
needle bar to its lowest position, and when the
reverse feed lever is working, it will not feed.
1. Adjust the stitch length to its max;
2. Loosen the screw 1 so the driving eccentric
wheel 2 can turn on the shaft;
3. Adjust the needle bar to its lowest position;
4. Turn the eccentric wheel 2 to make the throw of
eccentric upward, and turn it a bit as required;
5. Tighten the screw 1;
6. Test it as required.
Set the stitch length to its max, adjust the
needle bar to its lowest position, and when the
reverse feed lever is working, it will not feed.
15. Adjusting the position of the bottom
feed dog(Fig.14)
15. Adjusting the position of the bottom
feed dog(Fig.14)

1515
1616
1. Adjust the stitch length to 0 , and then loosen
the screw 1 and 2;
2. Turn the balance wheel until the needle is at its
lowest position, and then lift it by 1.8mm;
3. Move the rotating hook as required;
4. Make the cover 3 touch the rotating hook, then
tighten the screw2;
5. Make sure that the gear 4 touches the bushing 5,
then tighten the screw 1.
Adjust the stitch length to 0 , and lift the
needle by 1.8mm.
a. The hook point must reach the center of the
needle and the clearance between them should
be 0.05-0.1mm;
b. The vertical distance between the top of the
needle hole and the hook point should be
0.8mm.
16.Position of the needle and the rotating
hook (Fig.15)
1. Adjust the stitch length to 0 and adjust the
lifting amount of alternating presser foot to its
max;
2. Lower the presser foot 1 on the needle plate;
3. Turn the balance wheel until the walking foot 2
reaches its highest position;
4. As required, move the crank 3(by screw 4);
5. Test as required.
When the stitch length is at the 0 and the
lifting amount of alternating presser foot is at
the max, turn the balance wheel to make sure
that the clearance between the presser foot 1
and the walking foot 2 is 7.0mm.
1. Adjust the stitch length to 0 and adjust the
lifting amount of alternating presser foot to its
max;
2. Lower the presser foot 1 on the needle plate;
3. Turn the balance wheel until the walking foot 2
reaches its highest position;
4. As required, move the crank 3(by screw 4);
5. Test as required.
When the stitch length is at the 0 and the
lifting amount of alternating presser foot is at
the max, turn the balance wheel to make sure
that the clearance between the presser foot 1
and the walking foot 2 is 7.0mm.
17. Adjusting the lifting amount of alternating
presser foot (Fig.16)
17. Adjusting the lifting amount of alternating
presser foot (Fig.16)

1717
1818
1919
1.Lower the presser foot on the needle plate;
2.Loosen the screw 2 until the feed eccentric wheel
can merely turn;
3.Adjust the feed eccentric wheel 3 as required;
4.Tighten the screw 2;
5.Test as required.
When the stitch length is at the max and the
presser foot touches the needle plate, the
walking foot and the needle should reach the
needle plate simultaneously.
18. Adjusting the upper feed(Fig.17)
When the presser foot is lifted up, there must be
a clearance of 0.5mm between the two tension
plates ( the minimum clearance is 0.5mm,
when sewing with thick thread, it should be
adjusted to 1mm,or more.
). Adjust the adjusting
plate as required.
When the presser foot is lifted up, there must be
a clearance of 0.5mm between the two tension
plates ( the minimum clearance is 0.5mm,
when sewing with thick thread, it should be
adjusted to 1mm,or more.
). Adjust the adjusting
plate as required.
19. Needle thread tension releasing(Fig.18)19. Needle thread tension releasing(Fig.18)
1. When the winder switches on, its spindle must
engage reliable;when the winder switches off,
the friction wheel 5 and the driving wheel 1
should get apart;
2. When the thread is approx. 1mm from the edge
of the bobbin, the winder will switch off
automatically;
3. When operating, insert the bobbin to the winder,
thread the bobbin thread and switch the winder
on.Adjust the pin 3 and the screw 4 as required.
1. When the winder switches on, its spindle must
engage reliable;when the winder switches off,
the friction wheel 5 and the driving wheel 1
should get apart;
2. When the thread is approx. 1mm from the edge
of the bobbin, the winder will switch off
automatically;
3. When operating, insert the bobbin to the winder,
thread the bobbin thread and switch the winder
on.Adjust the pin 3 and the screw 4 as required.
20. Bobbin winder (Fig.19)20. Bobbin winder (Fig.19)

1. Machine casting components

1. Machine casting components
Arm
Cylinder bed
Base
Connecting block
Screw
Hinge
Screw
Face Plate
Screw
Rear cover(left)
Rear cover(right)
Screw
Small cover
Screw
Spring
Screw
Safety cover
Screw
Front cover
Screw
Safety cover
Safety cover
Screw
Safety cover
Safety cover
Wood screw
Plug
Arm
Cylinder bed
Base
Connecting block
Screw
Hinge
Screw
Face Plate
Screw
Rear cover(left)
Rear cover(right)
Screw
Small cover
Screw
Spring
Screw
Safety cover
Screw
Front cover
Screw
Safety cover
Safety cover
Screw
Safety cover
Safety cover
Wood screw
Plug
NO .
Part Number Name Qt. Remark
P335 P335V P335B P335VB

2.Needle and presser foot components

NO .
Part Number Name Qt. Remark
2.Needle and presser foot components
P335 P335V P335B P335VB

3.Rocking shaft bracket components

3.Rocking shaft bracket components
NO .
Part Number Name Qt. Remark
P335 P335V P335B P335VB

4.Thread take-up components

4.Thread take-up components
NO .
Part Number Name Qt. Remark
P335 P335V P335B P335VB

5.Thread tension and thread tension releasing components