15 MA_560_A4_180619_en
3.4
3.4.1
Looper
Removing and remounting the looper (Fig. 7)
ATTENTION!
Switch off machine electrically!
Remove the needle plate, loosen threaded pin (1) in the looper shaft and
remove the looper downwards.
When remounting the looper make sure that the threaded pin presses against
the surface of the looper’s shaft nose which fixes the looper in correct position.
Nevertheless it is recommended to recheck the loop stroke.
Fig. 7
3.4.2
When setting the looper height there should be a distance of 0.1 mm between
looper point and needle.
Setting the looper
3.4.3
By loosening nut (2) and screwing in of the screw (3) the distance between
looper shaft and V-belt bearing is enlarged and thus the V-belt is tensed.
Tension of V-belt for looper drive (Fig.9)
Then refix the screw by means of the hexagon nut.
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