Removing Of The Machine Arm - Duerkopp Adler 558 Service Instructions Manual

33. Removing of the Machine Arm

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The removal of the machine arm becomes necessary when there is a
blockage of the sewing machine.
This can be caused by a foreign object (e.g. the remainder of a
needle), which has caught in the main control disc.
Caution Risk of Injury !
Before removing or replacing the machine arm pull the mains plug.
Before removal of the machine arm:
–
Check the correct setting of the cutting pressure and pressure of
the Clamp closing lever.
–
Disconnect the transport lever 4 from the housing drive.
–
Check the machine arm for ease of movement by turning the
handwheel.
If it can be easily turned then the cause of the blockage lies in the
machine housing.
Removing the machine arm
–
Remove the clamping plates and needle.
–
Remove the right protective hood.
–
Remove the V-belt from the drive pulley.
–
Tilt the machine head up.
–
Loosen nut 5 from the spreader tie rod.
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Take the wire pull 2 out of the machine arm from the top.
–
Loosen screws 3 of the hook tie rod 1 from the dual lever.
–
Tilt the machine head down.
–
Loosen screw 6 and screw the transport lever 4 out.
–
Remove screws 9 and 10.
Remove the protective plate 8 and take out the control discs 7.
Continued on the next page !
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