JUKI MS-3580 Serie Manual De Instrucciones página 89

!0
!8
!4
Right direction
When the above-mentioned adjustments are made, the connecting positions shall be secured for the
lifter lever !4 with slide hole and the lifter lever !5 by moving the lifter lever !4 with slide hole in the
right direction. When proper positioning has been secured, tighten the setscrew !6 .
To secure the standard amount of rise of 6.5mm for the presser 1 , loosen the setscrew !7 and move the stop collar
5)
!8 up and down until a clearance of 6.5mm is secured between the lower face "C" of the mounting position of the
presser shaft guide bush @2 and the upper face "D" of the stop collar !8 . Since then, tighten the setscrew !7 .
1. At the same time, check the mounting position of the needle thread rocking thread take-up lever
connecting base !9 .
2. At the lower dead point of the needle bar, a clearance of 1.6mm shall be secured between the bot-
tom face A of the needle thread rocking thread take-up lever connecting base !9 and the upper
face B of the cut section of the front cover @0 .
3. If the amount of presser rise is too excessive than required, the presser will touch the needle
clamp, thus causing needle breakage or stitch skipping.
4. If pressure of the presser is too insuffi cient or excessive than required, the material cloth will ad-
vance awkwardly.
(4) Removal and installation of presser only
To replace presser 1 only, loosen the right and left setscrews @1 and change the presser 1 .
Then, tighten the right and left setscrews @1 .
(3) Installation and pressure adjustment of
presser and presser yoke
Raise the presser shaft 3 , mount the presser yoke 4
1)
9
on the presser shaft 3 , and tighten the setscrew 5 .
Confi rm whether the presser shaft 3 smoothly moves up
2)
and down, being free from rattling on the right and left.
If there is rattling on the right and left, loosen four setscrews
6 to set up the presser shaft guide 8 to eliminate right
and left rattling by means of the right/left holding guide
plate 7 . Make adjustments to permit the presser shaft to
perform light movement up and down.
Since then, tighten the setscrew 6 .
Install the pressure adjusting leaf spring set 9 and
3)
turn the pressure adjusting nut !0 until pressure of the
presser 1 is duly adjusted.
™ Turning the pressure adjusting nut !0 clockwise
causes the pressure to increase.
™ Turning the pressure adjusting nut !0
counterclockwise causes the pressure to decrease.
In order to make the presser 1 rise by 3.2mm faster
4)
than the upper feed roller, loosen the setscrew !1
!5
of the presser shaft guide 8 and move the presser
shaft guide 8 up and down until a clearance of 0.8mm
is secured between the lower hole face of the lever
link !2 and the bottom face of the lever link hanger
setscrew !3 . (Lower dead point of the needle bar)
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