Duerkopp Adler 251-140042 Руководство - Страница 15
Просмотреть онлайн или скачать pdf Руководство для Швейная машина Duerkopp Adler 251-140042. Duerkopp Adler 251-140042 20 страниц. Auto high speed lockstitch sewing machine
Печатать страницу
23. TILT OF THE FEED DOG
WARNING:
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine
and check to be sure that the motor has totally stopped rotating in prior.
24. ADJUSTING THE FEED TIMING
WARNING:
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine
and check to be sure that the motor has totally stopped rotating in prior.
1) The standard tilt (horizontal) of the feed dog is
obtained when marker dot
shaft is aligned with marker dot
1
. (251-140042H, the marker dot
forward the feed rocker shaft by 90 , as standard).
2) To tilt the feed dog with its front up in order to
prevent puckering, loosen the setscrew, and turn
the feed bar shaft 90 in the direction of the arrow,
using a screwdriver.
3) To tilt the feed dog with its front down in order to
prevent uneven material feed, turn the feed bar
shaft 90 in the opposite direction from the arrow.
(The standard tilt for 251-140042H.)
Whenever the feed dog tilt is adjusted,
the feed dog height will be changed.
So, it is necessary to check the height
after tilt adjustment.
1) Loosen screws
2
move the feed eccentric cam in the direction of the
arrow or opposite direction of the arrow, and firmly
tighten the screws.
2) For the standard adjustment, adjust so that the top
surface of feed dog and the top end of needle eyelet
are flush with the top surface of throat plate when
the feed dog descends below the throat plate.
3) To advance the feed timing in order to prevent
uneven material feed, move the feed eccentric cam
in the direction of the arrow.
4)To delay the feed timing in order to increase stitch
tightness, move the feed eccentric cam in the
opposite direction from the arrow.
Be careful not to move the feed
eccentric cam too far, or else Nee
dle breakage my result
-10-
A
on the feed bar
B
on feed rocker
B
inclines
and
3
in feed eccentric cam
1
,