Duerkopp Adler 745-22 Service Instructions Manual page 41

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Caution Risk of Injury !
Turn the main switch off.
Set the slewing movement of the needle bar link only with the main
switch turned off.
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8
Step back on the left pedal.
The transport carriage runs into its rear end position.
Remove the cylinder and swing lever for the thread puller and
head cover with folder.
Clamp a suitable spacer 3 (13.5 mm thick) between cylinder 2 and
nut 5 of the piston rod.
Press the latch 1 down.
Bring the needle bars into the low position by turning the
handwheel.
Loosen clamping screw 6.
Turn the eccentric axle 4 until the needles enter in the middle of
the needle hole.
The slit 7 must thereby lie in the lower half of the semicircle of the
eccentric axle 4.
Tighten clamping screw 6.
Remove spacer 3.
The needles are in the forward position.
The clearance of the forward edges of the needle (needle
thickness Nm 100) to the forward edges of the needle hole must
be 0.2 to 0.3 mm.
Loosen screws 9 slightly.
Set clearance by setting the holder plate 8 higher or lower.
Tighten screws 9.
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