AMF S-4000 - Thread Trimming; Trimmer Hook Operation

S-4000
1-65
Revised 01/2005
e-mail: service@amfreece.cz; parts@amfreece.cz; website: www.amfreece.com
Phones: +420 582 309 146 (Service), +420 582 309 286 (Spare Parts); Fax: +420 582 360 606
ADJUSTMENTS
Trimmer Hook Operation
Ensure the machine air pressure is on and the trimmer hook cylinder is extended.
Set the correct position of the trimmer hook.
Loosen the boss on top of the cylinder, press the boss against the machine casting and lock the
position.
Ensure free movement of the shaft.
Thread Trimming
Thread trimming occurs after the completion of the last stitch, as illustrated.
As the trimmer hook moves in the direction of arrow C, both thread loop legs A and B are pulled
forward.
When the thread hook approaches the end of the stroke, leg A contacts the trimming knife, cutting
the thread.