Consew P1541S-CC Technical manual

PREMIER SERIES
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P1541S-CC

1. Brief introduction.................................................................................1
2. Main specifications..............................................................................1
3. Installation...........................................................................................1
4. Installing the oil box............................................................................2
5. Adjusting the tension of the belt.........................................................2
6. Installing the belt cover.......................................................................2
7. Lubrication.........................................................................................3
8. Installing the needle...........................................................................3
9. Threading the bobbin thread..............................................................4
10. Installing the bobbin case..................................................................4
11. Installing the winding guider.............................................................4
12. Winding the bobbin thread...............................................................4
13. Threading ........................................................................................5
14. Adjusting the stitch length.................................................................5
15. Adjusting the thread tension.............................................................5
16. Adjusting the thread take-up spring..................................................6
17. Presser foot lifter..............................................................................6
18. Adjusting the pressure of the presser foot........................................6
19. Relationship between needle and rotating hook..............................6
20. Adjusting the alternating amount of presser foot..............................7
21. Sewing speed list..............................................................................7
22. Troubleshooting................................................................................7
1. Arm and bed....................................................................................8 - 9
2. Upper shaft and thread take-up mechanism................................10-11
3. Needle bar vibrating parts...........................................................12-13
4. Upper feed parts..........................................................................14-15
5. Feed mechanism.........................................................................16-17
6. Lower shaft mechanism..............................................................18-19
7. Thread tension and bobbin thread winder parts..........................20-21
8. Knee lifter mechanism................................................................22-23
9. Lubrication..................................................................................24-25
10. Accessories...............................................................................26-27
CONTENT
Operation Instruction
Parts Manual

1
1
①
②
③
④
26mm 27mm
⑤
⑥
⑦
⑧
⑨
⑩
1. Brief introduction 2. Main specifications
3. Installation (Fig.1)
Table
In one line
1.Installation of the table connecting hook bracket
and rubber cushion.
Fix the connecting hook bracket ① and the rubber
cushion ② on the table by screw ③.
2.Installing the oil reservoir.
Set the oil reservoir ④ onto the table by six screws
as shown in the Fig.1.
3.Install the knee control connector ⑤, knee control
lift crank ⑨ and bent bar ⑦ according to the direction
of the knee control lift bar shaft ⑧.
4.Adjust the direction of part ⑥,⑩, ⑾ by set screw.
Machine adopts compound feed and special feeding
mechanism, which can ensure smooth feeding,
low noise, and beautiful stitch seam. It is constructed
with slide link thread take-up, horizontal large rotating
hook, and synchronized belt driving system, which
ensures high speed, but lower noise.
This machine is suitable for sewing the heavy
materials of car seat, sofa, tarpaulins, tents, bag, etc.
Medium and heavy duty
2000 s.p.m
9mm
36mm
DP*17 (Nm125-Nm180) standard Nm160 (23#)
Semi-lubrication
9mm by hand, 16mm by knee
370W clutch motor
Large hook
Application
Max. sewing speed
Max. stitch length
Needle bar stroke
Needle
Lubrication
Hook
Height of presser foot lift
Motor

2
3
4
2
①
②
③
⑤
⑥⑦
⑧
④
⑤
15mm
9.8N
①
②
③
A
B
⑤
⑥
⑦
⑧
④
5. Adjusting the tension of the belt (Fig.3)
6. Installing the belt cover (Fig.4)
Hand wheel
Motor pulley
Oil reservoir
4. Installing the oil pot (Fig. 2)
2.Tighten the oil pot ⑦ onto the bolt ①.
Note: Please turn off the motor before adjustment.
1.Tighten the column ⑦ into the screw hole on the
machine head.
2.Install the belt cover (right) ① on the machine
head by set screw ② and ⑧.
3.Connect the belt cover (left) ③ to the claw AB of
the belt cover (right) ①.
4.Tighten the belt cover (left) ③ by set screws ④, ⑤
and ⑥.
Note: After installing the belt cover, make sure that
the belt cover is not touch with the belt and hand wheel.
When adjusting the tension of the belt, please
adjust the height of the motor, and press down the middle
of the belt with the force of 9.8N. There should be a slack
of 15mm.
1.Install the bolt ①, oil seal ② and spacer ③ onto the
oil reservoir, and then put the cushion ⑤ and spacer ⑧
into the set screw ④, then set it by nut ⑥.

1.Face plate lubrication
a.Loosen the face plate screw;
b.Open the face plate ① in the direction of the arrow;
c.Lubricate the place as the arrow shows every day;
d.Close the face plate;
e.Tighten the screw.
2.Machine body lubrication
a.Lubricate the place as the arrows indicate every day;
b.When run the machine for the first time or run it again
after a long period of non-use, please oil the place as the
arrows indicate. Besides, take down the top cover ②,
then oil each felt and oil wick.
3.Rotating hook lubrication
a.Add the oil from oil hole ③ until it reaches the red line
④. Check it one time a day. If the oil is under the red line
⑤, it should be refilled.
b.When adjusting the oil amount of the rotating hook,
loosen the nut ⑦, and then adjust it by adjusting screw
⑥. Turn it rightward, the amount of the oil can be increased;
on the contrary, the amount can be reduced.
Note: Excess lubrication results in leaking.
1.Turn the balance wheel to raise the needle bar to
its highest position;
2.Loosen the set screw ② and make the long groove
of the needle ① toward leftward;
3.Insert the needle into the bottom of the needle bar;
4.Tighten the set screw ②.
5
6
3
①
⑤
⑥
⑦
③④
①
②
7. Lubrication (Fig.5)
8. Installing the needle (Fig.6)
Paper sheet
Long groove toward left
Less More
②

7
8
10
4
①
②
9
①
②
③
①
②
③
①
②
③
A
B
C
D
④
9. Threading the bobbin thread (Fig.7)
11. Installing the winding guider (Fig.9)
12. Winding the bobbin thread (Fig.10)
10. Installing the bobbin case (Fig. 8)
1.Set the winding guider ① onto the top cover of
the machine head by set screw ②.
2.Insert the bobbin thread guider ③ into the
machine head.
1.Insert the bobbin into the hook body, pass the
thread through the thread hole ①, then pass down
through the thread tension spring ②.
2.Draw the thread downward, then the bobbin will
turn in the direction as the figure shows.
1.When taking out the bobbin case, open the gib ①
and pull it off.
2.Align the bobbin case with the rotating hook shaft
and then insert it. Align the inside of the rotating hook
② and the latch ③, then install the bobbin case by
pressing it until "crack" occurs.
1.Thread in numerical order from ① to ④, then wind
the bobbin winder.
2.Press down the bar A.
3.Loosen the set screw B and adjust the adjusting plate
until the winding amount reaches the 80% of the outside
diameter.
4.When the winding is not smooth, move the winding
guider C forward and backward, then set it by set screw
D.
5. After winding, the winding bar A will separate and
stop automatically.

Thread in the order as shown in Fig.
11
13
5
12
①
②
13. Threading (Fig11)
14. Adjusting the stitch length (Fig.12)
15. Adjusting the thread tension (Fig.13)
Weaken
Strengthen
Weaken
Strengthen
1. Adjusting the tension of the needle thread
Turn the nut ① clockwise to increase the tension
of the needle thread; on the contrary, to reduce the
tension of the needle thread.
2. Adjusting the tension of the bobbin thread.
Turn the screw ② clockwise to increase the tension
of the bobbin thread, on the contrary, to reduce the
tension of the bobbin thread.
Turn the stitch length dial plate ① leftward and
rightward to make the marker align with the required
figure. Press down the reverse feed lever ② to start
backward sewing, and release it to start normal
sewing.
⑤
⑥
⑦
⑧
⑨
⑩
①
②
③
④
①
②

15
17
6
16
⑤
①
②
③
④
①
②
①
②
1mm
2.1mm
③
①
0.02～0.05mm ④
②
③
14
16. Adjusting the thread take-up spring (Fig.14)
17. Presser foot lifter (Fig.15)
18. Adjusting the pressure of the presser foot (Fig.16)
19. Relationship between needle and rotating hook (Fig.17)
Weaken
Strengthen
Small Big
1.Changing the swing range of the thread take-up
spring
2.Changing the tension of the thread take-up spring
1. Adjust the stitch length dial to 0.
a.Loosen the set screw ②, move the stopper ③
leftward and rightward, then adjust the thread take-up
spring ①.
b.Move the stopper rightward to increase the swing
range of the thread take-up spring; on the contrary, to
reduce the swing range of the thread take-up spring.
Loosen the nut ④, turn the spring shaft ⑤
counter-clockwise to increase the tension; turn it
clockwise to reduce the tension.
1.Stop the presser foot when it is lifted, lift the
lifting bar ① in the direction of the arrow. When
the presser foot is lifted by 9mm, then stop it.
2.When lowering the presser foot, put down the
lifting bar ① to make the presser foot back to its
original place.
Turn the adjusting screw ① rightward to increase the
pressure; turn it leftward to reduce the pressure. After
adjustment, tighten the set nut ②.
2. Turn the balance wheel to lift the needle bar from
its lowest position by 2.1mm. loosen the screw ①,
adjust the distance between up end of the eye of
needle ② and rotating hook point ③ to 1mm, then
tighten it.
3. Turn the balance wheel to lift the needle bar from
its lowest position by 2.1mm. Loosen the two set
screws ④, turn the rotating hook, align the rotating
hook point ③ with the center of the needle ②,
then tighten the two screws ④.
4. Loosen the two set screws ④, move the rotating
hook leftward and rightward. Align the rotating hook
point ③ and the center of the needle ②, and adjust the
clearance between rotating hook point and needle to
0.02-0.05mm, then tighten the screw.

21. Sewing speed list
①
②
③
18
7
20. Adjusting the alternating amount of presser foot (Fig.18)
Altenating amount Stitch length between 6mm-9mm
2000s.p.m
2000s.p.m
1600s.p.m
Stitch less than 6mm
2500s.p.m
2000s.p.m
1600s.p.m
22. Troubleshooting
Trouble RemedyPossible cause
1. Thread breaking (2-3mm
thread left on the cloth)
1. Damage on the rotating hook set
groove of thread way, needle point,
rotating hook point and needle plate.
2. Too strong the needle thread tension
3. Collision between needle and rotating
hook.
4. Too little the oil of the rotating hook
5. Too weak the needle thread tension.
6. Too strong the tension of the threaad
take-up spring
7. Over fast or slow the timing between
needle and rotating hook
1. Refer to (9.Threading the bobbin
thread)
2. Rast with sand paper or file.
3. Replace the bobbin or rotating hook
4. Increase the bobbin thread tension.
5. Reduce the bobbin thread tension.
6. Replace the needle.
2. Weaken the needle thread tension.
3. Refer to (19.Relationship between
needle and rotating hook.)
4. Adjust the oil amount (Refer to7.
Lubrication)
5. Increase the needle thread tension.
6. Weaken the tension of the thread
take-up spring.
7. Refer to (19. Relationship between
needle and rotating hook)
1. Polish the damaged part with sand
paper; rasp the middle rotating hook set
groove with file.
2. Puckering
1. Over fast or slow the timing between
needle and rotating hook.
1. Refer to (19. Relationship between
needle and rotating hook).
2. Too weak the pressure of the presser
foot.
3. The clearance between the up end of
the needle and the rotating hook is not
right.
4. Wrong needle.
2. Tighten the pressr foot adjusting
screw.
3. Refer to (19.Relationship between
needle and rotating hook.)
4. Replace the needle.
3. Loose stitch
1. Without threading the bobbin thread
under the spring of the thread tension
of the rotating hook body.
2. Bad work on thread way.
3. No movement of bobbin.
4. Too weak the bobbin thread tension.
5. Too strong the bobbin thread tension.
6. Damage of the needle point.
Remove the right side of the window plate, then the
top feed crank ③ can be observed.
Less than 3mm
Between 3~4mm
Between 4~6.5mm
When the presser foot is alternating increasingly,
adjust it upward in the range of the long hole of the
top feed crank ③; when the presser foot is alternating
decreasingly, adjust it downward, then tighten the
nut ②.
When the lifting amount of the presser and walking
foot is different, first align the bottom of the presser
foot and walking foot with the surface of the needle
plate, then loosen the set screw ①.Turn the balance
wheel to the front, the lifting amount of the presser
foot is more than that of the walking foot. Turn the
balance wheel reversely, the lifting amount of the
walking foot is more than that of the presser foot.
Finally tighten screw ②

Operation instruction

Parts Manual

8
1. Arm and bed
1
2
34
5
6
7
89
10
11
12
13 1415
16
17
1819
20 21
22 23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45 46
47
48
49
41

1.Armandbed
Line PartNumber Description Qt. Notes
1 400‐1001 Arm 1
2 400‐1002 Bed 1
3 400‐1003 Faceplateassembly 1
4 200‐1301 Screw(1) 2 SM11/64"X40
5 400‐1004 Screw(2) 1 SM15/64"X28
6 400‐1005 Safeguard 1
7 400‐1006 Screw 1 SM15/64"X28
8 400‐1007 Sidecover(1) 1
9 400‐1008 Sealspacer 1
10 200‐1019 Screw 5 SM11/64"X40
11 400‐1009 Sidecover(2) 1
12 400‐1010 Screw 1 SM11/64X40
13 400‐1011 Uppercover 1
14 200‐1019 Screw 6 SM11/64"X40
15 400‐1012 Rubberplug 1
16 400‐1013 Smallcover 1
17 200‐1019 Screw 1 SM11/64"X40
18 400‐1014 Upperthreadguideplate 1
19 400‐1015 Screw 2 SM3/16"X32
20 400‐1016 Upperthreadguide 1
21 400‐1017 Screw 1 SM9/64"X40
22 400‐1018 Middlethreadguide 1
23 200‐1030 Screw 2 SM9/64"X40
24 400‐1019 Lowerthreadguideassembly 1
25 200‐1030 Screw 1 SM9/64"X40
26 400‐1020 Positionplate 1
27 200‐1077 Screw 1 SM9/64"X40
28 100‐1043 Needleplate 1
29 400‐1021 Screw 2 SM11/64"X40
30 400‐1022 Slideplateassembly 1
31 400‐1023 Clampholder 1
32 100‐1129 Screw 2 SM11/64"X40
33 400‐1024 Oilscreen 1
34 400‐1025 Presserplate 1
35 400‐1026 Sealspacer 1
36 400‐1027 Screw 6 SM11/64X40
37 400‐1028 Rubberplug 3
38 400‐1028 Rubberplug 1
39 400‐1028 Rubberplug 1
40 400‐1028 Rubberplug 1
41 400‐1029 Rubberplug 2
42 400‐1030 Rubberplug 1
43 400‐1031 Rubberplug 1
44 400‐1032 Rubberplug 1
45 400‐1033 Modellabel 1
46 400‐1034 Rivet 2 GB8272X5
47 400‐1035 Safetycautionlabel 1
48 400‐1036 Upperthreadguidebar 1
49 400‐1037 plug /
15

1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
1718
19 20
21
22
23
24
25
26
27
28
29
30
5
32
33
31
34
32
10
2. Upper shaft and thread take-up mechanism

2.Uppershaftandthreadtake‐upmechanism
Line PartNumber Description Qt. Notes
1 400‐1038 Threadtake‐upleverpinshaft 1 103530
2 100‐1049 Screw 2 SM15/64"X28
3 400‐1039 Oilwick 1 ɸ2.5X155
4 400‐1040 Threadtake‐uplever 1
5 400‐1041 Slideblock 1
6 400‐1042 Oilwick 1
7 400‐1043 Needlebarlink 1
8 400‐1044 Needlebarcrankpin 1
9 400‐1045 Oilwick 1
10 100‐1049 Screw 2 SM15/64"X28
11 400‐1046 Needlebarcrank 1
12 100‐1071 Screw 1 SM9/32"X28
13 400‐1047 Screw 1 SM9/32"X28
14 400‐1048 Uppershaft 1
15 400‐1049 Uppershaftfrontbushing 1
16 100‐1049 Screw 1 SM15/64"X28
17 400‐1050 Uppershaftmiddlebushing 1
18 400‐1051 Oilwick 1 ɸ2x120
19 400‐1052 Bearingbushing 1
20 400‐1053 Screw 2
21 400‐1054 Upperbearing1 6005‐2ZNR
22 400‐1055 Balanceshock 1
23 400‐1056 Screw 2 SM15/64"X28
24 400‐1057 Synchronizedpulleyassembly 1
25 400‐1058 Screw 2 SM1/4"X40
26 400‐1059 Synchronizedbelt 1 540‐8YU‐15
27 400‐1060 Handwheel 1
28 100‐1049 Screw 2 SM15/64"X28
29 400‐1061 Lifteccentriccam 1
30 200‐1109 Screw 2 SM1/4"X40
31 400‐1062 Feedeccentriccam 1
32 200‐1109 Screw 2 SM1/4"X40
33 400‐1063 Retainingblock 1
34 400‐1064 Screw 2 SM11/64"X40
11

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
12
3. Needle bar vibrating parts

3.Needlebarvibratingparts
Line PartNumber Description Qt. Notes
1 400‐1065 Needlebar 1
2 400‐1066 Needlebarthreadguide 1
3 400‐1067 Needle 1 135X17#23
4 200‐1166 Screw 1 SM1X8"X44
5 400‐1068 Needlebaradapter 1
6 400‐1069 Oilwick 1
7 400‐1070 Screw 1 SM9X64"X40
8 400‐1071 Vibratingshaft 1
9 400‐1072 Crank 1
10 400‐1073 Crankpin 1
11 400‐1074 Screw 2 GB/T80M8X8
12 400‐1075 Oilfelt 1 ɸ1.520
13 400‐1076 Spring 1
14 400‐1077 Slideblock 1
15 400‐1078 Vibratingshaftfrontbushing 1
16 400‐1079 Vibratingshaftrearbushing 1
17 400‐1080 Oilfelt 1
18 400‐1081 Needlebarvibratingbracket 1
19 400‐1080 Oilfelt 1
20 400‐1082 Hingeshaft 1
21 200‐1123 Screw 1 SM15/64"X28
22 400‐1083 Positionplate(1) 1
23 400‐1084 Screw 2 SM9/64"X40
24 400‐1085 Positionplate(2) 1
25 200‐1019 Screw 2 SM11/64"X40
26 400‐1086 Drivencrank 1
27 400‐1087 Screw 1 SM15/64"X28
28 400‐1088 Oilfelt 1
29 400‐1089 Wire 2
30 400‐1090 Guiderail 1
31 200‐1019 Screw 2 SM11/64"X40
13

1
2
3
4
5
6
7
8
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
35
36
37
38 39
40
41
42
43
44
45
46
47
48 49
50
51
52
53
54
55
56
57
16
14
4. Upper feed parts