Titan DK2500 User Manual
TITAN DK 2500
English
OPERATOR'S MANUAL
NV. A. DE KONINCK
Avenue Sleeckx 84-86
B-1030 BRUSSELS -BELGIUM
Phone : ++32/2 216 31 40 Fax : ++32/2 242 41 89
E-mail : info@titansew.com Web : www.titansew.com
DK 2500 MANUAL E PAGE 1
Chapter 1: Installation and lubrication
1. INSTALLATION ................................................................................................................................3
a. Complete machine - with motor and table.................................................................................3
b. Sewing head only .......................................................................................................................5
2. LUBRICATING THE SEWING HEAD....................................................................................................5
Chapter 2: Threading
1. TYPES OF YARNS.............................................................................................................................7
a. Needle yarn................................................................................................................................7
b. Chain yarn .................................................................................................................................7
HREADING ....................................................................................................................................7
2. T
a. Needle thread.............................................................................................................................7
b. Chain yarn .................................................................................................................................7
Chapter 3: Stitch formation
1. CHAIN YARN FEED ..........................................................................................................................9
2. Stitch density setting......................................................................................................................11
a. On standard equipment............................................................................................................
b With the stitch density regulator...............................................................................................11
Chapter 4: Mechanic adjustment of the sewing head
1. TYPES OF NEEDLES .......................................................................................................................13
a. How often are the needles to be replaced?..............................................................................13
b. Needle replacement..................................................................................................................13
c Needle height adjustment..........................................................................................................15
d. Replacing the needle bar and adjusting the needle height ......................................................15
2. UPPER LOOPER..............................................................................................................................17
a. Preparatory work.....................................................................................................................17
b. Replacing the upper looper .....................................................................................................17
11
c. Upper looper fine adjustment...................................................................................................17
3. THE LOWER LOOPER .....................................................................................................................19
a. Preparatory work.....................................................................................................................19
b. Replacing the lower looper......................................................................................................19
c. Adjusting the upper looper to the lower looper .......................................................................21
d. Adjusting the distance between needle and lower looper........................................................21
4. THE CUTTING MOTION...................................................................................................................23
a. Renewing the upper knife.........................................................................................................23
b. Renewing the lower knife.........................................................................................................23
c. Knife fine adjustment ...............................................................................................................23
d. Aligning the lower blade with the needle plate........................................................................23
5. THE PRESSER FOOT ................................................................................................................. 23-25
6. FEED-DOG.....................................................................................................................................26
7. CHAIN GUIDE ................................................................................................................................27
8. STITCH PLATE FINGER ...................................................................................................................27
Chapter 5: Maintenance schedule
Maintenance schedule........................................................................................................28
TIT
DK 2500 MANUAL E PAGE 2
AN
DK2500
ADD
OIL
YARN
OIL
HERE
LEVEL
STAND
2587012P
i------------------------------.
I
@a,...___
25841E
25841VSC
·-........_
25882
2
5884
........._
25882V
........._
I
vsET
LOOPER
FIG
25884
YARN
1.1
25841R
I
I
T 16/12/04
DK 2500 MANUAL E PAGE 3
Chapter 1: Installation and lubrication
1. Installation
a. Complete machine - with motor and table
For units, supplied complete with motor and table, use FIG 1.1+1.4
1. Mount the yarn-stand 25850/2P en screw it on the table.
2. Mount the yarn guide plate SET 25884 on the table.
3. Place the black rubber anti-vibration blocks(25840) in the aluminium holders .
4. Take the TITAN DK 2500 machine out of its box. TAKE CARE NOT TO LIFT UP
the machine by holding the UPPER PARTS. Instead, place your hands
underneath the closing plate of the machine, and lift the machine. Place the 3
little feet attached at the lower plate, precisely in the black rubber blocks.
5. Look underneath the table, and loosen the nut of the motor, with a flat key of 24.
This allows the motor to rotate upwards or downwards .
6. Push with one hand the motor upwards, and place the driving belt (attached to
the sewing machine) (M10012) around the pulley of the motor. Push the motor
down to stretch the belt slightly as seen in FIG 1.2.
-----------
--------
---
--
Tightened
7. Unscrew the cover marked “OIL” on the machine. Take the two oil bottles out of
the box and fill the machine with 1.5 L oil. Check if sufficient oil has been added
by looking at the oil-level glass. The oil level should be exactly between the two
red arrows. Close the cover again.
The electric motor is supplied, connected for use on 380V/3 PHASE supplies. For use
on 220V/3PH supplies, use the connection diagram (FIG 1.3). Connect the cores of
the mains to the receptacles of a plug designed for local operation (not included).
Verify that the direction of rotation is correct (FIG 1.1).
too
strongly
Z Y X
~ ~
bl
bl
V u
w
FIG 1.2
f@1
bl
Well
y
z
(~
~
@ @ @
V
w
X
~
u
220
FIG 1.3
VOLT
380
VOLT
TIT
AN
DK25OO
ELECTRONIC
MOTOR
ADD
OIL
OIL
HERE
LEVEL
YARN
STAND
2587012P
i------------------------------.
I
25841VSC
·-........_
@a,...___
25882
25841E
25841R
2
5884
........._
25882V
........._
I
vsET
I
I
FIG
25884
T 16/12/04
1.4
b.
Sewing head only
The sewing
motor rating¾
Use a pulley
Verify direction of rotation (FIG 1.1)
Prior
the machine.
See previous paragraph for more information about this.
I
2.
Lubricating the sewing head
Utilising splash lubrication, the sewing head
the components concerned.
machine with oil level lower
determination of
ATTENTION: the machine should NEVER RUN WITHOUT
The machine will loose daily a small amount of
is
recommended. If required, refill the oil reservoir
marking OIL just above the sight-glass.
Very important: oil type SP68.
The type of
SP68.
Recommended
to
starting
head
requires a drive motor that must meet the following specifications:
HP
and
rated
load
speed 2.800
80
mm
in
oil
diameter
the
sewing machine, always make sure
the
oil level (see
to
be
used
oil
types: CASTROL-ALPHA SP68 or any similar
to
match the V
is
To
get the maximum performance, never
than
the minimum level
FIG
1.1+1.4).
in
this sewing machine should
rpm.
belt.
to
pour about 1,5 I of
designed for optimum lubrication of
line.
The sight-glass allows quick
OIL.
oil.
An
inspection at periodical intervals
by
unscrewing the filler
be
of following viscosity:
oil
grade.
run
the
plug
oil
into
all
ATTENTION:
excessive wear, which
Conversely, use of high-viscosity oils
necessitate early renewal of the spare parts from lack of lubrication.
VERY IMPORTANT:
I.)
( 1.5
Remove the
bucket. Replace the
If
the oil
machine
Change the gasket (25839J)
refill the machine with oil as described above.
Use
of low-viscosity oils
in
turn will necessitate early renewal of the internal parts.
OIL
should
ONCE A MONTH. This is best done after a
plug
for oil draining underneath the machine
plug
and add
is
strongly polluted, it
and
to
remove
all
excess deposit, which has accumulated
will
result
in
poor lubrication properties
will
lead
to
lines clogging, which
be
completely removed
new oil (1.5
is
recommended
and
close the cover. Place the machine
I)
through the
to
remove
few
and
new oil should
hours
of
and
let the oil leak
plug
marked
the
cover underneath the
and
in
turn will
operation
OIL.
on
the cover.
on
the table
be
in
added
a
and
TIT
DK 2500 MANUAL E PAGE 6
AN
DK2500
25900
THREADING
25900A
25900B
FIG
DIAGRAM
SEE
DETAIL
2.1
A
DETAIL
SCALE
A
2/5
T
07/01/2005
DK 2500 MANUAL E PAGE 7
Chapter 2: Threading
1. Types of yarns
a. Needle yarn:
Many types of yarns can be used on the machine. Good results have been obtained
with following qualities : Nylon polyamide yarn of thickness 30 or 40,
Monofil (invisible) thread of 750 denier. (0,3 mm diameter) or
cotton (for example, mercerized cotton, thickness No.18).
b. Chain yarn (or “looper yarn”):
A wide range of threads can be used with DK 2500 machines.
Good results have been obtained with following qualities:
Polypropylene and Polyamide Nylon are most frequently used in thickness ranging
from 1800 detex till 5200 detex. The threads
gives better results after sewing, because the thread flattens out and covers the
carpet better.
Other qualities like wool, acrylic or cotton have also been used with success.
2. Threading
Remark: always switch off the motor prior to threading the yarns!
a. Needle thread
should be very lightly twined. This
Refer to FIG 2.1 THREADING DIAGRAM for the details.
b. Chain yarn
1. Turn the hand-wheel by hand and bring the take-up D in its topmost
2. Turn the hand-wheel by hand and bring the take-up D in its
3.
4. Tightly wrap the chain yarn around the point of the threading needle and push it
5. Gently remove the threading needle and push some more chain yarn into the
6. Turn the flying-wheel by hand to make sure the chain yarn extends above the
7. Make sure the needle thread remains threaded. The sewing machine is now
Note: For improved covering, use two or three thinner threads in the lower
looper.
position. Lead the yarn thru the tension-adjusters A and B and by hole C thru the
plates on both sides of the take-up D.
bottommost
position. In this position the eye of the lower looper faces the threading tube E
Thoroughly clean (if necessary, using the threading needle, part 25900) the
lower looper's eye.
all the way (as far as possible) into the threading tube and through the eye of the
lower looper
threading tube in order to obtain a small tangle of chain yarn behind the lower
looper's eye F
needle plate.
ready for use.
F.
EMARK: Remember : remove the THREADING NEEDLE ALWAYS.
. R
TIT
DK 2500 MANUAL E PAGE 8
AN
DK25OO
STITCH
NEEDLE
CARPET
YARN
C:
A:
NOT
ADJUSTMENT
LOOPER
OK
OK
YARN
FIG
3.1
LOOPER
B:
NOT
D.
NOT
YARN
OK
OK
D
H
FIG
IMITATION
3.2
FIG
3-THREADSTITCH
3.4
C
FIG
J
3.3
T
25/11/04
DK 2500 MANUAL E PAGE 9
Chapter 3: Stitch formation
1. Chain yarn feed
It is recommended to keep the pressure on the springs to a minimum on the thread
tensioners A, B and G (FIG 2.1).
Note:
Always make sure the chain yarn is positioned underneath the yarn drawing lever D
(or “take-up”) (see FIG. 2.1-3.2). Failure to do so, will result in improper stitch
formation. To avoid this, check if the machine has been threaded properly (see
chapter 2b).
FIG 3.1A:
absolutely uniform tensions.
FIG 3.1B:
FIG 3.1C&D:
Correct stitch formation, the chain yarn and the needle thread have both
Either insufficient chain yarn tension, or excessive needle thread tension
Either excessive chain yarn tension, or insufficient needle thread tension
With the take-up lever D correctly set, the amount of thread thus fed will assure
successful overlocking of the carpet.
In the event of insufficient thread feed (or with thicker carpets), however, undue
tension will be placed on the chain yarn along the edges of the carpets, which in turn
will pull the needle thread from the carpet backing (see figure 3.1C).
To remedy: adjust the take-up lever D slightly in the direction of C3 (see figure 3.5).
Conversely in the event of excessive thread feed (or with thin carpets), the chain yarn
will be found to be slack around the carpet edges (see figure 3.1B).
To remedy: adjust the take-up lever D slightly in the direction of C1 (see figure 3.5).
If the machine isn’t equipped with RFR fine adjustment gear (see figure 3.3), the
position of take-up lever D is to be changed as follows:
Untighten the screw of the arm I (figure 3.2) and place the take-up lever D into the
wanted position (higher=less thread, lower=more thread) afterwards, tighten the
screw of arm I again.
RFR fine adjustment assembly: standard in the new machines (from 2004 on)
To adjust the thread feed : loosen the screw J (FIG 3.3). Push the bar (lever)
towards “+” to increase thread feed, towards “-“ to decrease thread feed.
Note: For the typical two-thread overlock stitch, insert the chain yarn in the C eye as
illustrated in figure 3.2 and 3.3
For special stitch formation similar to a three-thread stitch (see figure 3.4), pass the
chain yarn through the H eye (see figure 3.2 and 3.3) and then adjust thread feed so
that the stitch thus formed is similar to the one shown in figure 3.4.
Loading...