KANSAI SPECIAL DFB1412PS User manual

DPB
PartsList
Instruction Manual
DFB-1412PS' <
DFB'1012PS'
DFB'1412P-S'M
DFB-1012P'S'M
From the library of: Diamond Needle Corp

Specification
Model
1012P
1412P
1012P-SM
1412P-SM
Needle
12
12
12
12
Looper
12
12
12 12
Spreader
0
12
0
12
Thread
12
24
24
36
Service needle
DV X K25
(#18, #21)
UOx 113
(#11 --18)
DV X K25
(#18, #21)
DV x57
(#11-18)
Needle gauge
4.76 X 11 = 52.36, 6.35 x 11 = 69,85
4.76 X 11 = 52.36
Feeding mechanism
Plain
Stitch length
3.5 ~ 4 stitches/inch
8~ 14 stitches/inch
3.5~4 stitches/inch
8—14 stitches/inch
Max. speed
2,000 rpm
4,500 rpm
2,000 rpm
Needle thread
Elastic thread (U.S.A.)
#2T or #3M
Spun thread
#50^80
Elastic thread (U.S.A.)
#2T or 3M
Spun thread
#50-60
Looper thread
Spun thread
#50-60
Ornament thread
Rayon and
synthetic thread
Rayon and
synthetic thread
DFB-1412P, DFB-1412P-SM
1. Needle bar's height adjustment
Needle bar height (length of needle bar from needle
plate) of this unit is 13.3—13.5mm
Adjust as follows.
1) Turn the pully to lift the needle her to the highest
position, and loosen the screw (B) in Fig.2 fixing
needle bar.
2) Adjust needle clamp so that needles enter needle
holes when the needle bar is lowered. After adjust
ment, tighten screw (8) in Fig.2 fixing the needle
bar.
Fig. 1
0\)0 0O 0 0 0O%0
U^U UU0 UUU'^
Dimension A,, 13,3 —13.5mm
Needle plate
D
ooooop)
Screw for
holding needle bar
From the library of: Diamond Needle Corp

2. Installation of looper and looper holder
Install looper holder and hand tighten screws for lo-
opers. Lower the needle clamp to the lowest point and
adjust the clearance between the loopers and needles
after the end of backward movement to 3.0 mm.
At this time, check for the parallelism between needle
looper holder and needle clamp.
Adjust as follows.
1) Remove the upper cloth plate and oil reservoir
top cover.
2) Fasten retainer lever (A) in Flg.4 on looper retainer
lever. Adjust the clearance between looper and
needle using a 3.0 mm bar guage. Then, fasten
screw (A).
3. Tlining of needle bar and looper
Time the looper to needle bar movement so that looper
tip is 1mm higher than needle hole (See Fig. 5) during
forward movement when the needle bar locates 7mm
above its lowest position, and looper tip is 2.5mm higher
than needle hole (See Fig.6) during backward movement
when the needle bar locates 28mm below its highest
position.
Adjust as follows.
1) Remove the upper cloth plate and oil reservoir
top cover.
2) Loosen screw (B) in Fig.4 for retainer excentric
ball.
3) Setting retainer excentric ball toward the operator
increases the speed of looper movement, while
setting it opposite to the operator slows the speed.
When the best timing is obtained by turning the pulley,
tighten screw (8) in Fig.4.
4. Needle guide Installation (Looper instal
lation)
Adjust the clearance between the needle guide and
needle to 0 — 0.1mm as shown in Fig. 7.
1) Install loopers and needle guide on looper holder.
Adjust the clearance between needle and looper to
mm. Set looper straight.
2) Set the needle guide as shown in Fig.7 and secure it
with setscrew. Recheck the clearance between
loopers and needles after the end of backward
movement is 3.0mm. Then, fasten screw for loopers
completely.
5. Spreader alignment
The right clearance between needles and spreaders is
0.35 — 0.40mm as shown in Fig.9.
Adjust as follows.
1) Loosen screws for spreaders (A) in Fig. 10.
2) Lower the needle bar to the lowest position, and
check for parallelism of spreaders. After adjustment
to 0.35 — 0.40 mm clearance, fasten the screw.
* Check the parallelism of spreader again.
Looper
P'9. 7 @ ^ 1^ FiO' 8 Needle receiver
Needle
Looper
/
Fig. 9
Needle plate
3 mm
2.Smm
Needle
(0 — 0,1 mm)
0.35 — 0.40mm
D O O O
Fig. 10
0.35 —0.40mm
O O O O
T3 D • •"
From the library of: Diamond Needle Corp

6. Relative position between looper and
spreader
1) When the spreaders locate at the extremely left
position, right side of spreader must meet the right
side of looper.
Adjust as follows.
1) Temporarily tighten screw (A) for spreader holder.
2) Turn pulley to move the spreader to the extremely
left position. Fastening screw (A) in Fig. 11 when
the above relative position is satisfied.
Note: For spreader adjustment, adjust A and B at the
same time. The clearance between loopers and spreaders
should be within 0.1mm as shown in Fig. 12. (Use the
clearance guage.)
Looper retainer adjustment
The looper retainer should be adjusted so that the
needle bar is 20mm below the upper end position (at
this time, the needle is at the center behind the looper)
so that the retainer bar can move upwards.
To adjust, do as follows.
1) Loosen the retainer eccentric screw H in Fig. 13, and
then, tighten this crew temporarily.
2) Rotate the pulley and adjust the looper retainer.
Turn the retainer eccentric I in Fig. 13 to increase
looper retainer speed, and clockwise to decrease
speed.
3) For fine adjustment, loosen screw G in Fig. 13, and
then, move the retainer thread eyelet up and down.
12. Adjustment of feed gear rack
(A) Height of feed gear rack
The proper height of the feed gear rack from the
needle plate top is 0.8 — 1.2mm as shown in Fig. 14,
when the rack is at the uppermost position.
Adjust the height as follows.
1. Loosen the feed gear rack fixing screw (C in Fig.
14).
2. Adjust and set the feed gear rack to the height
described above, and tighten the fixing screw
(C in Fig. 14).
(B) Parallel alignment of feed gear rack
Install the feed gear rack parallel to the needle plate.
Adjust parallelism as follows.
1. Loosen the Y-screw.
2. Adjust the X-screw so that the feed gear rack is
parallel to the needle plate.
3. After adjustment, tighten the Y-screw.
0.1mm
Fig. 12
Fig. 11
Fig. 13
Needle plate ^
0.8- 1.2 mm
Feed gear rack
installation base
Feed system body
Fig. 14
I
From the library of: Diamond Needle Corp

DFB-1012P, DFB-1012P-SM
1. Feed teeth height
Set feed teeth height to 1 — 1.2mm from the needle
plate upper surface.
2. Needle bar's height adjustment
Needle bar height (length of needle bar from needle
plate) of this unit Is 12.3mm
Adjust as follows.
1) Turn the pully to lift the needle her to the highest
position, and loosen the screw (B) In Fig.2 fixing
needle bar.
2) Adjust needle clamp so that needles enter needle
holes when the needle bar Is lowered. After adjust
ment, tighten screw (8) In Flg.2 fixing the needle
bar.
1.0 — 1.2mm
Presser foot screw
Note: Compression of presser foot spring
Decrease spring compression with the adjusting
screw for thin cloth.
Increase spring compression with the adjusting
screw for thick cloth.
3. Looper
This sewing machine uses Organ needles.
DVK-20#21: 1.8mm
DVK-20 #18: 2.0mm
Install looper holder and hand tighten screws for lo-
opers. Lower the needle clamp to the lowest point and
adjust the clearance between the loopers and needles
after the end of backward movement to 1.8 mm.
At this time, check for the parallelism between needle
looper holder and needle clamp.
Adjust as follows.
1) Remove the upper cloth plate and oil reservoir
top cover.
2) Fasten retainer lever (A) In Flg.4 on looper retainer
lever. Adjust the clearance between looper and
needle using a 1.8 mm bar gauge. Then, fasten
screw (A).
Presser
foot spring
Fig. 4
1.8mm
Fig. 1
0n0 00 0 0 0 0B0
ru u u u u u unj
1
12.3mm
z
Needle plate
Fig.2
OOOOOO)
\
Screw for
holding needle bar
Fig. 3
From the library of: Diamond Needle Corp

4. Needle bar and looper timing
Synchronize the timing between the looper and needle.
When
the timing is proper, the looper passes the same
route both in normal and reverse rotations.
5. Looper setting angle
Set loopers so that looper center and needle center
are on a center line.
6. Rear puller timing
Adjust rear puller timing so that the center of
puller driving eccentric set screws meets the center
of crankshaft when the need bar is at its lowest
position.
Note that puller roller reaches its extreme end
when needle just enters the needle plate hole.
Fig. 6
Front view
Fig. 7
Normal rotation
Looper end
Slide view
Reverse rotation
Set screw
Puller driving eccentric
From the library of: Diamond Needle Corp

Kinds of standard cams (9 pieces)
No. 1 EX 01055
No. 2 EX 01056
No. 3 EX 01057
No. 4 EX 01058 No. 5 EX 01059
No. 6 EX 01060 No. 7 EX 01061
Adjustment of cams and ornament spreaders
1. Cam usage
* The two cams must be set properly at all times.
The Inner
cam acts on the upper spreader of the
three stacked ornament spreaders, and the outer
cam acts on the two lower spreaders. The outer
cam can cross the lower two spreaders, and Is
used to obtain voluminous ornament stitching
at the thread passing position.
Be sure to use the No.B cam for the Inner cam.
2. Inner cam replacement
* To replace the cams, remove the hex head screw
tightening the connection link on the upper orna
ment connection lever (A), and shift the upper
ornament connection lever to the right. Next,
remove screw (8). Note that this screw has a left-
handed thread. Then, remove the outer cam (C).
The collar (D) isexposed. Remove three tightening
screws, and take out the collar. Then, cam (E) can
be easily replaced. Before mounting a new cam,
be sure to apply grease In the cam groove. Do not
loosen screws other than those described above.
Otherwise, upper ornament timing will become
defective.
No. 8 EX 01062
No. 9 EX 01063
From the library of: Diamond Needle Corp

3. Cam timing
* Set No.8 cam at the inner side, and No.l cam at
the outer side.
Set the both outer and intermediate levers (A)
around
the center of the slots, and connect them
to the feed eccentrics which are connected to the
ornament spreaders. After connection, the three
spreader start moving. To adjust cam timing,
loosen and set the four screws for tightening the
collars (C) so that the three spreaders stop moving
when the needle ends reach the uppermost spread
ers. After adjustment, securely tighten the four
screws.
Collar
Collar
Four screws
'0
0 0 0 000000000
JJ
JU
—i
[000000000000
No.8 cam
0 0 0 0000000 00
r^) OOOOQOOOQOO
No.l cam
O O O 0 O O O O O O O <)
OOOOOOOO (!) o o o
oooooooooo o o
O O O O 0 o o o o o o o
From the library of: Diamond Needle Corp

Adjustment of upper ornament spreaders
* First, Install the upper ornament spreader so that the
bottom surface of the base on which the spreader
is installed is 15mm (distance (G)) from the upper
surface of the needle plate. When the above distance
(15mm) is set at both right and left sides, tighten
the two hex head screws (D), and then tighten the
other two screws (E) after checking the distance.
Next, install the lowest spreader (C) of the three so
that it moves smoothly without contactingthe presser
foot when the spreader is slide from right to left
while it is lifted by approx. 0.2mm. The clearance
between the spreader and needles should be 1.0 -
1.2mm. When the spreader is not parallel to the
twelve needles, loosen screws (D)slightly and correct
the spreader so that it is parallel to the needles, and
then retighten the screws (D). Next, install spreader
(B) in the same way as spreader (C) while eliminating
the clearance between spreaders (8) and (C). Care
should be used to prevent the spreaders from coming
too close to one another, since this causes unsmooth
movement. They must move smoothly. Next, install
spreader (A) in the same way as spreaders (C) and
(B). After installing the three spreaders, try to move
them up-to-down. Adjust four screws on spreader (B)
so that the clearances between the spreaders in the
vertical direction is approx. 0.5mm.
8
B C
1.0 — 1.2mm
0.2mm
VTTTT^
From the library of: Diamond Needle Corp

12 needle-gauge parts list
Model Presser
Needle plate
Feed dog
Looper
rocker
Tread collector
bar
DFB-1412PSM
EX01016
17-046(3/16")
14497 15-497 19497 18497
DFB-1012PS
17499 (3/16")
17498 (1/4")
14-046 (3/16")
14-047 (1/4")
15-046
15-047
19-496
19497
DFB-1412PQ
17-491 (1/4")
17492 (3/16")
14499 (1/4")
14-500 (3/16")
15499
15-500
19496
19-497
18496
18497
DFB-1412PQSM
Optional
14499 (1/4")
14-500(3/16")
15-499
15-500
19496
19497
18496
18-497
DFB-1012PS-SM
17-046(3/16") 14-046 (3/16")
15-046
19497
18497
Single chain looper
(19-112)
Double chain looper
(19-431)
Thread collector looper (19-437)
(excluding Models DFB-1412, DFB-1406)
Rubber thread collector looper (19-439)
(for Models DFB-1412PS. DFB-1406PS)
Needle
guid (19-416)
(for 25-needle use only;
not-reetuired for 33-needle use)
From the library of: Diamond Needle Corp