The Dürkopp Adler 367 is a special sewing machine for first-class
single-needle decorative seams in light to medium-heavy material.
It is a single-needle flatbed double-backstitch machine with lower
·
conveyor, needle transport and alternating upper foot conveyor.
A safety coupling prevents the shuttle from being displaced or
·
damaged if the thread jams in the shuttle track.
Large horizontal shuttle (bobbin as classes 767, 291, 8967).
·
Automatic wick lubrication with sight-glasses for the oil level.
·
Integral bobbin winder.
·
The 367 is a sewing machine designed for sewing light to medium-heavy
material. Such material is generally made of textile fibres, but it may also
be leather. It is used in the clothing industry and for domestic and
motor-vehicle upholstery.
This special sewing machine can also be used to produce so-called
technical seams. In this case, however, the operator must assess the
possible dangers which may arise (with which DÜRKOPP ADLER AG
would be happy to assist), since such applications are on the one hand
relatively unusual and, on the other, so varied that no single set of criteria
can cover them all. The outcome of this assessment may require
appropriate safety measures to be taken.
Generally only dry material may be sewn with this machine. The
material may be no thicker than 10 mm when compressed by the
lowered sewing feet. The material may not contain any hard objects,
since if it does the machine may not be operated without an
eye-protection device. No such device is currently available.
The seam is generally produced with textile-fibre sewing thread of gauge
up to 15/3 NeB (cotton), 20/3 Nm (synthetic) or 25/4 Nm (covering yarn).
Before using any other thread the possible dangers arising must be
assessed and appropriate safety measures taken if necessary.
This special sewing machine may be set up and operated only in dry,
well-maintained premises. If the sewing machine is used in premises which
are not dry and well-maintained it may be necessary to take further
precautions (which should be agreed in advance - see EN 60204-31:1999).
As manufacturers of industrial sewing machines we proceed on the
assumption that personnel who w ork on our products will have
received training at least s ufficient to acquaint them with all normal
operations and with any hazards that these may involve.
Turn off the main switch.
The needle thread may only be threaded with the sewing machine
switched off.
–
–
Place the yarn reels on the reel stand and pass the needle and
looper threads through the unwinding arms.
Unwinding arm 1 must be vertically above the yarn reels.
Thread the needle thread as shown in the following illustration.
1
9
143
Fig. A:Correct thread loop in the centre of the
material
Fig. B:Needle-thread tension too low
or
Looper-thread tension too high
Fig. C:Needle-thread tension too high
or
Looper-thread tension too low
5
2
10
6.2Adjusting the needle-thread tension
Pre-tensioner
When the main tensioner 4 and supplementary tensioner 5 are open
(e.g. when the sewing feet are raised) the needle thread must be
under slight residual tension. This residual tension is produced by the
pre-tensioner 2.
The pre-tensioner 2 simultaneously affects the length of the end of the
severed needle thread (the starting thread for the next seam).
–
Basic setting:
Turn knurled nut 2 until its front is flush with the bolt 1.
–
To shorten the starting thread:
Turn knurled nut 2 clockwise.
–
To lengthen the starting thread:
Turn knurled nut 2 anticlockwise.
Main tensioner
The main tensioner 4 should be set to the minimum possible tension.
The looping of the threads must be in the centre of the material.
With thin material excessive thread tension can cause unwanted
gathering and thread breakage.
–
Adjust the main tensioner 4 so that the stitches are uniform.
To increase tension - turn the knurled nut clockwise
To decrease tension - turn the knurled nut anti-clockwise
Supplementary tensioner
The supplementary tensioner 5 can be switched in to effect a rapid
change in needle-thread tension during operation (e.g. with thickened
seams).
–
Set the supplementary tensioner 5 lower than the main tensioner 4.
–
The supplementary tensioner 5 is switched on and off with the lever 3.
Lever 3 turned to the left = supplementary tensioner is switched
off.
Lever 3 turned to the right = supplementary tensioner is switched
on.
6.3Opening the needle-thread tensioner
Subclass -170010; -180010
When the sewing feet are raised the main and supplementary
tensioners are also opened automatically.
Subclass -170115; -180115
The needle-thread tensioner is automatically opened when the thread
is severed.
Hint !
(subclass -170115; -180115 only)
The time when the thread-tensioner is opened can be set with
parameters F-191 and F-192 (technician level).
11
6.4Adjusting the thread regulator
4
Caution: danger of injury
Turn off the main switch.
The thread regulator may only be adjusted with the sewing machine
switched off.
The thread regulator 3 controls the quantity of needle thread required
for stitch formation.
The thread regulator must be precisely adjusted for an optimum result.
The thread-regulator setting depends on the following factors:
–
Stitch length
–
Material thickness
–
Characteristics of the sewing yarn in use.
At the correct setting the needle-thread loop must slide at low tension
over the thickest point of the s huttle.
–
Undo screws 1 and 2.
–
Adjust the thread regulator 3.
–
Tighten screws 1 and 2.
Adjustment hint:
If the maximum quantity of thread is required the thread-tensioning
spring 4 must be pulled upwards about 0.5 mm from its lower limit
position. This is the case when the needle-thread loop passes the
maximum shuttle diameter.
1
23
12
Adjusting the thread regulator
–
Undo screws 1 and 2.
–
Move the thread regulator 3:
to the left for more thread,
to the left for less thread.
–
Tighten screws 1 and 2.
6.5Winding on the looper thread
4321
–
Pull the thread through the guide 3 and the tensioner 4.
–
Place the thread behind the blade 5 and sever it.
–
Fit the bobbin 1 onto the bobbin winder.
Hint
There is no need to wind the thread onto the bobbin by hand.
–
Press the bobbin-winder lever 2 into the bobbin.
–
Sewing
The bobbin-winder lever terminates the process as soon as the
bobbin is full.
The bobbin winder always stops in such a position that the blade 5
is in the insertion position (see right-hand illustration).
–
Remove the full bobbin 1, place the thread behind the blade 5 and
sever it.
–
Fit empty bobbin onto the bobbin winder for the next winding
process and press the bobbin-winder lever 2 into the bobbin.
CAUTION !
If the thread is not to be wound on during sewing, it is essential
for the sewing foot to be locked in the raised position and the
sewing-foot stroke set to the smallest value.
5
13
Loading...
+ 27 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.