Efka Vd554Kv/6F62Av Sewing Drive - Duerkopp Adler 69 Installation Instructions Manual

6.4.1

Efka VD554KV/6F62AV sewing drive

The position of positioning pulleys 1 and 4 determines the machine positions.
Position 1
– Use the ">>" button on the control box to select the basic "needle down"
position(the left-hand LED beneath the button lights up).
– Move the pedal briefly forwards.
The sewing machine stops in the 1st position.
– Check whether the needle is in the loop-stroke position (2 mm after bottom dead
centre).
CAUTION:
Subclass 69 FA assumes a position such that after bottom dead centre the upper
edge, eye of the needle and the surface of the needle plate are all at the same
level.
– Turn off the main switch.
– Remove cover 3 after undoing the attachment screw.
– Slightly undo locking screw 2.
– Turn the middle positioning pulley 4 for position 1 in the desired direction.
Position 2 (thread lever just behind top dead centre)
– Turn on the main switch.
– Use the ">>" button on the control box to select the basic "needle up" position(the
right -hand LED beneath the button lights up).
– Move the pedal briefly forwards.
The sewing machine stops in the 2nd position.
– Check whether the thread lever is just behind top dead centre.
The tension in the thread should just have been released.
– Turn off the main switch.
– Turn the outer positioning pulley 1 for position 2 in the desired direction.
– Turn on the main switch.
– Check the 1st and 2nd positions again.
Repeat the process if necessary.
– Tighten locking screw 2.
– Replace cover 3.
Caution: danger of injury
Turn off the main switch before adjusting positioning
pulleys 1 and 4.
The utmost care must be taken when adjusting the
positioning pulleys. The positioning pulleys and the
generator (innermost) pulley must not be damaged.
CAUTION:
After the direction of rotation has been changed the
positions must be reset.
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