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Durkopp Adler 527 Manual

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6. Operation of the machine
Caution!
Do not use this sewing machine without using the finger guard
(C, Fig. 4) and without the take-up lever guard (P, Fig. 2).
6.1 Upper thread threading (Fig. 1, 2)
Caution!
Before starting the threading operation, switch off the
main switch and put off the feet from the pedals on the
stand to avoid the starting of the machine by treading
the pedal.
After having inserted the bobbin with thread on the thread stand (N), unwind
the thread in sufficient length and pass it through the holes in the thread stand
(N). Direct it then through the thread guide (A) and through the guide (B) - with
the machines without any thread cutter, or through the auxiliary thread tensioner
(L) with the machines provided with such thread cutter. Feed the thread between
the dishes of the tensioner (C). Direct the thread through the adjusting spring
(D) around the guide (E) and through the guide (F) and (G) into the take-up lever
eye (H). From here the thread is directed downward through the guides (F) and
(J) and through the hole of the thread guide (K) on the needle bar towards the
needle eye. Thread the thread into the needle eye from the front (from the sewer)
rearward.
6.2 Winding of thread on the hook bobbin (Fig. 3)
From the thread stand the thread is directed to the tensioner (A) through the
guide (B) on the machine head. From the guide the thread is directed on the
hook bobbin mounted on the shaft (C) of the winder. Wind up the thread
end several times on the bobbin in the clockwise direction and feed it towards
the spring (D). Introduce the thread between the coils thereof and, when
pulling it slightly, cut it with the knife which is mounted inside the spring.
Engage the winder by means of the lever (E). After having wound up the
thread on the bobbin, the winder stops automatically. After having removed
the bobbin from the winder shaft it is possible to cut the thread with the
knife protected by the spring (D) or to cut it with scissors. The thread (A)
serves for regulating the tension of the thread for winding.
6.3 Needle insertion (Fig. 4)
Caution!
Before starting the operation of the needle change, switch off
the main switch and put the feet off the pedals on the stand to
avoid the machine start by treading the pedal.
After having chosen the correct needle thickness (number) corresponding
to the system of the prescribed type (usually the system 134), loosen the
screw (A) in the needle holder and insert the needle (B) up to the bottom of
the hole in the needle holder. Turn it in such a way, so that its long groove is
directed ahead (towards the sewer).
Caution - when choosing a thicker needle it is necessary to check, whether
the hook beak does not catch the needle - the eventual setting of the hook
position is to be carried out by a qualified person. Check up, whether the
needle passes through the centre of the needle hole, change a faulty needle.
A
B
G
C
E
K
F
J
H
D
Fig. 1
H
A
L
Fig. 2
B
C
A
E
A
B
Fig. 4
D
Fig. 3
N
M
P
C
OFF ON
MAIN SWITCH
… 7 …


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Others manual(s) of Durkopp Adler 527

Durkopp Adler 527 User Manual - German - 34 pages

Durkopp Adler 527 User Manual - French - 34 pages


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