JUKI MO-804 User Manual

5. The thread tension
The thread tension varies according to the kinds of sewing material, thickness and kinds of sewing thread, overedging width, stitch
length and etc. and therefore the pressure of the thread tension disc must be adjusted in each individual case.
MO-804
MO-814
MO-816
(1) Overlock needle threadshouldbe adjusted by tension knob 0 .
(2) Upperlooper thread should be adjusted by tension knob® .
(3) Lowerlooper thread should be adjusted by tension knob @ .
(4) Double chain needle thread or left side overlockneedle thread should be adjusted by tension knob @ . (In caseof MO-816 or MO-814)
(5) Double chain looper thread should be adjusted by tension knob (5). (In case of MO-816)
0 ® ©
6. Presser foot and feed dog
(1) The pressure ofthe presser footis adjustediby rotating the presser foot adjusting screw 0 . The standard pressure is4.5 kg. (9.9 lbs)
* When the presser foot is to be turned sideways, knock down the presser lifting lever ® to the rear. When the presser foot is returned
to the original position, be sure to knock down the presser lifting lever toward front.
(2)The standard protrusion of the feed dogfrom the throat plate surfaceis 0.8 mm(l/32").
For heavy weight materials, makethe protrusionamount bigger and for lightweightmaterials makeit less.
The protrusion amount can be adjusted by the feed dog set screws (D and 0 . When making this adjustment, be sure that the
height ofthe main feed dog 0 and thesub feed dog ® becomes equal. The auxiliary feed dog 0 should be installed 0.5 mm(l/64")
lower than this height.
8) CIQ
(3) Adjusting the slanting of the feed dog
Remove the rearside cover of the machine. Then, remove the rubbercapand loosen the set screw 0 . Ifa roundbarisinserted into the
hole ® of the eccentricshaft (D and rotated, the slanting of the feed dogcan beadjusted. Afteradjustment, tighten the set screw (f).
Also, in so doing, loosen the screw ® and move the thrust collar so that the screw of the feed barshaftthrust collar (Q) coming out
from the hole of the feed mechanism cover, comes directly overhead.
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From the library of: Superior Sewing Machine & Supply LLC

JUKI MO-804 Specifications

General

Brand	JUKI
Model	MO-804
Category	Sewing Machine
Language	English