Beisler 1265-5 - Manual (Page 100)

2.6.10 Synchronous run -Top feed -A djustm entofthe reference position ofthe top feed-dog
S tandard
The zero position ofthe top feed-dog step m otoris determ ined by the
reference disk 2 w hich covers the proxim ity sw itch w hen referencing.
C orrection
– S etthe value 50 forthe basic position ofthe top feed in the
program .
– A ctuate the resetsw itch.
N ow the feed ofthe top and the bottom feed-dog should be equal
during a m achine revolution.
– In orderto check this setting carefully a testseam w ith tw o equally
long m aterialplies is sew n.
W hen the seam is finished the fabric should be precisely flush at
the beginning and atthe end.
Ifthe upperm aterialply is too short,the feed ofthe top feed-dog is
m ore intensive than thatofthe bottom feed-dog.
The feed ofthe top feed-dog has to be reduced.
– A fteropening the clam ping nut1 the reference disk 2 has to be
turned dow nw ards (aw ay from the proxim ity sw itch)and fixed again
by the clam ping nut1.
Ifthe upperm aterialply is longerthan the low erone,the feed ofthe
top feed-dog is insufficient.
The feed ofthe top feed-dog has to be increased.
– A fteropening the clam ping nutthe reference disk has to be turned
dow nw ards and fixed again by the clam ping nut.
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