24
AZ8600SD
6.Adjustment of sewing machine
6.5 Adjusting the width of overedge seam
Before adjusting, set the edge of the upper knife
① 0 - 0.5 ㎜ above the lower knife ② .
To make wide overedge seam:
(1) Loosen the screw ③ on the upper knife hold
-
er.
(2) Tighten the screw ③ securely after moving
the holder as desired in the direction
“W”.
(3) Loosen the screw ④ on the lower knife hold
-
er.
(4) The lower knife ② touches the upper knife ①
closely with its spring.
(5) Tighten the screw ④ securely.
To make narrow overedge seam smaller:
(1) Loosen the screw ④ .
(2) Tighten the screw ④ slightly after moving
the holder as desired in the direction
“N”.
(3) Loosen the screw ③ .
(4) Tighten the screw ③ while applying the upper
knife ① to the lower knife ② .
(5) Loosen the screw ④ .
(6) The lower knife ② touches the upper knife ①
closely with its spring.
(7) Tighten the screw ④ securely.
Fig. 6-7
Fig. 6-8
1. After changing the overedge seam width, check the
sharpness of the blades (See“6.6.3 Sharpness of
knives”).
2. Use a stitch plate applicable to the overedge seam
width.
Adjustable range of overedge seam is within ±0.5 ㎜
based on the value indicated the gauge respectively.
3. Dust clogged at the connecting part of the upper knife
holder may change the installing angle of the knives.
It will make them cut badly. Loosen the screw ③ and
clean the parts completely.
①
②
stitch plate
0 - 0.5 ㎜
③
①
②
④
W
N
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