Upper Thread Trimming For - 170 Short Travel Cord Trim - AMF SERIES S104-130 Parts And Service Manual

S-104-100
CORD TRIM ADJUSTMENTS

Upper Thread Trimming for - 170 Short Travel Cord Trim

During the machine cycle, the sewing ends and the machine returns to the home position. However,
before returning home, the needle thread trim action trims the front leg of the thread loop. To check for
the correct timing of the trimming action, perform the following steps:
1. Turn left hand crank until the trip lever has been released and the right hand stitch wheel locks. Con-
tinue turning the left hand crank until the cutting lever starts its downward motion. The lower thread
draw-off should start moving to the left and the race should be facing the rear of the machine. The top
thread trimming action should start its travel. The race should still be facing the rear of the machine, and
the travel should begin to the right. If the travel does not begin, loosen screws N, and slide trip lever O
forward or backward (forward will delay the trimming action: backward will activate the trimming action
earlier) as necessary. Once the adjustment has been made, re-tighten screws N.
2. The travel of the trim knife assembly must not go beyond the outside left edge of the trim knife assem-
bly. To adjust, loosen screws P (located under actuator Q), and rotate actuator Q forward or backward
(forward will
increase the amount of
travel; backward will
decrease the amount of
travel) as necessary.
1. A minimum clearance
of approximately 0.40 mm
(.016") must be
maintained between the
underside of the cap of
actuator L and the trim
clearance must exist
when trim knife assembly
is located over the right
hand spreader stop and
away from the throat
plate area. To adjust,
loosen nut M and turn
actuator L up or down to
obtain proper clearance.
Once the proper clearance
has been obtained, re-tighten nut M.
Revised 09/2004
e-mail: service@amfreece.cz; parts@amfreece.cz; website: www.amfreece.com
1-82
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