JUKI MO-1000 Series Service Manual page 41

adjustment Procedure
Checking items:
1 Tension release actuating bracket
2 Setscrew
3 Thread tension adj. knob
* Lift the presser foot. Set the thread tension adjustment knob at "4". At
this time, check that the lower looper thread tension is released.
* Check that a clearance of 0.9 mm or more is provided between the
lower looper thread tension disks (clearance between two disks).
How to perform adjustment:
○ Loosen the setscrew 2 of the tension release actuating bracket 1 .
○ Move the tension release actuating bracket 1 left or right to perform
adjustment.
○ Retighten the setscrew 2 .
Results of Improper adjustment
If the releasing amount of the disks
is inadequate, thick thread cannot
pass between them smoothly.
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