Upper Trimming And Lower Interception - Ct - AMF S-100 Parts And Service Manual

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16.

UPPER TRIMMING AND LOWER INTERCEPTION - CT

16.1 After installation of the thread retainer
retainer to within 0.2 mm
16.2. Using the screw — adjust the trimming knife – so that the right edge of the nipper is covered
with the stitching plate edge
of the throat plate to catch and hold the lower thread for next buttonhole sewing. When the
trimming knife moves, the thread holder must move over the throat plate without binding. To
adjust - loosen the nut of the screw
nut.
16.3. Position the tip of the trimming knife – 0.9 mm in front of the needle › by loosening screw š.
Check the adjustment for keeping the clearance according to the point 16.2.
16.4. The normal home position of the trimming mechanism – is adjusted using screw œ. Correct
adjustment prevents cutting of the looper thread  (See diagram).
16.5 Adjust the initial position of the control lever ž to the space 0,05 — 1 mm from stud Ÿ
by the screw
Revised 06/2007
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
- STANDARD MACHINE ADJUSTMENT
of the top of the throat plate.
(see picture). The thread holder must lean on the front side
after loosening its nut.
with trimming knife –, adjust the height of the thread
and screw out or in the adjusting screw
EDGE
ž
Looper position when cutting
In this case the bottom
thread is trimmed
S-311
. Tighten the
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