Adjusting The Stitch Length - JUKI DLN-6390 Manual De Instrucciones

4. Adjusting the stitch length
WARNING :
To protect against possible personal injury due to abrupt start of the machine� be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
2
1
4
6
8
1. �e sure to adjust the scale of feed dial to the needle feed amount corresponding to the cloth
feed amount of the selected gears. If the cloth feed amount is different from the needle feed
amount� unexpected trouble will be caused.
2. As a matter of convenience� the scale of stitch length dial is indicated up to "0". However� the
minimum stitch length of this sewing machine is 2.1 mm. Do not set the scale of the feed dial to
less than 2.1 mm.
Smultaneously perform procedures 1 and 2 below to
change the sttch length.
1 Change of needle feed amount : Turnng of the feed dal
2 Change of cloth feed amount
Be sure to adjust the scale of the feed dal to the sttch
length whch has been set wth the cloth feed amount
adjustng gear for operaton.
Perform the procedures below to change the sttch length.
<Change of cloth feed amount>
) Remove screw 1 and remove cover 2 .
＊ Remove cover 2 n the rear drecton.
2) Loosen screw 3 and remove U-Gear 4 .
3) Loosen screw 6 and remove L-Gear 5 .
4) Select from the table below the "Gear" correspondng
3
＊ There s a ptch ndcaton seal showng the relaton
A
5) Fully push U-Gear 4 correspondng to the sttch length to
5
6) In the state that the presser foot s lowered, adjust
7
<Change of needle feed amount>
7) Adjust the scale of feed dal 7 adjusted to the sttch
* Numerals on the
scale denote mm.
＊ When sttch length s changed to a small one, needle
to the sttch length to be changed.
between the gear and the sttch length n the accessory
box. Paste t at the poston you desre and refer to t
when replacng the gear.
be changed n the drecton A untl the end s reached, and
tghten screw 3 . (Tghtenng torque : 3 to 5 N·m)
L-Gear 5 correspondng to the sttch length to be
changed to the end plane of U-Gear 4 to determne
the poston, and tghten screw 6 to fix it.
(Tghtenng torque : 3 to 5 N·m)
When the position of L�Gear 5 in terms of
U�Gear 4 is slipped� unexpected trouble
will be caused. So� be careful.
length correspondng to a set of gears (U-Gear and
L-Gear) whch has been replaced to dot 8 engraved
on the sewng machne.
thread may slp off the needle at the start of sewng. In
ths case, change the settng of SC-92 from "soft-start
st sttch" to "2nd sttch". For the detals, refer to the
Instructon Manual for SC-92.
: Replacement of the feed
amount adjustng gear
23