AMF S-311 Manuel de service télécharger pdf (Page 59)

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

Revised 03/2006

S-311

1-47

E - STANDARD MACHINE ADJUSTMENT

14. UPPER THREAD TRIMMING MECHANISM - AF/LTT

14.1.After installation of the holder with trimming knife Ê adjust the trimming knife after

loosening the screw Ì to obtain the clearance 0,1 — 0,15 mm above the right spreader Í.

14.2.Using the screw Ë adjust the trimming knife Ê so that the left side of the knife was

covered with the right side of the throat plate.

14.3.Position the tip of the trimming knife Ê 0.9 mm in front of the needle Ï by loosening

screw Î. Check the adjustment for keeping the clearance according to the point 14.2.

14.4.The normal home position of the trimming mechanism Ê is adjusted using screw Ð.

Correct adjustment prevents cutting of the looper thread Ñ (See diagram).

14.5.Adjust the initial position of the control lever Ò to the space 0,05 — 1 mm from stud Ó

by the screw after loosening its nut.

Looper position when cutting

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AMF S-311 Manuel de service Page 59