JUKI SC-905 - Position of the Automatic Reverse Stitching Magnet; Adjusting the Thread Tension Releasing Solenoid

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(30) Position of the automatic reverse stitching magnet
Standard Adjustment
(31) Adjusting the thread tension releasing solenoid
Standard Adjustment
™ Max. feed amount
LZ-2290SS, DS = 5 mm
LZ-2290SU, DU = 2.5 mm
Standard delivery : 2 mm
™ Max. reverse feed amount
LZ-2290SS, DS = 4 mm
LZ-2290SU, DU = 2.5 mm
Standard delivery : 2 mm
Reverse stitching
magnet
Rubber cushion
Plunger
™ The presser plate of the thread tension releaser should be engaged with the roll pin and the
auxiliary pin of the thread tension releaser.
™ When the solenoid is pushed by fingers in the direction A, it should move smoothly. Also, when
the solenoid is released, it should smoothly return to its home position.
™ When the solenoid is pushed in the direction A, the tension disk should rise.
Thread tension
releasing solenoid
Screw
Screw
Nut
Presser plate of the thread
tension releaser
Return spring
Roll pin
(Inside the
machine arm)
Auxiliary pin of the
thread tension releaser
1
A