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5.Proper operation
5.6 Opening cover
Front cover ①
To open the front cover ① , slide it to the right
and tilt toward you.
To close it, raise it. Its spring makes it slide
to the left.
Cloth plate ②
To open the cloth plate ② , shift it to the left
while the pushing lever ③ .
To close it, shift it to the right. Check that it
is locked securely.
5.7 Adjusting differential feed dog
Loosen the lock nut ④ and adjust the differen-
tial feed lever ⑤ .
Moving up will make stretching and moving down
will make gathering.
Adjusting the screw ⑥ enables the differential
feed lever ⑤ to be fine-adjusted.
● To lower lever, turn the screw clockwise.
● To raise lever, turn the screw counterclock-
wise.
Differential ratio up to 1:0.6 - 1:2 is available
by internal adjusting mechanism respectively.
Table 6 shows the graduation, differential ratio,
and max. stitch length.
AZ8600SD
②
②
Fig. 5-9
④
Fig. 5-10
Graduation
S
1
2
3
Table 6
16
①
③
①
③
⑥
Differential
Max. stitch
ratio
length ( ㎜ )
1:0.7
1:1
1:1.6
1:2.3
⑤
5
5
4
3
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