Mechanical Adjustment; Top Tension - Janome MS5027PR Service Manual

MS5027PR

TOP TENSION

TO CHECK:
1. SET THE TENSION DIAL AT "4", AND RAISE THE PRESSER FOOT.
2. PASS THE THREAD (A) BETWEEN THE DISCS, AND DRAW THE THREAD (A) DOWN AROUND THE
CHECK SPRING HOLDER AS IN FIG. 1.
3. LOWER THE PRESSER FOOT, AND BRING THE THREAD (A) UP.
4. THE TOP TENSION SHOULD BE BETWEEN 75 AND 90g WHEN PULLING THE THREAD (A) UP IN
THE DIRECTION OF (B).
* USE POLYESTER SEWING THREAD #50 (WHITE).
* IF IT IS NOT WITHIN THE ABOVE LIMITS, ADJUST AS FOLLOWS.
ADJUSTMENT PROCEDURE:
1. REMOVE THE FRONT COVER UNIT (SEE PAGE 10).
2. PULL THE SPRING (C) AWAY FROM THE LEAD SCREW (D).
3. IF THE TOP TENSION IS TOO LOOSE, TURN THE LEAD SCREW (D) IN THE DIRECTION OF (E).
IF THE TOP TENSION IS TOO TIGHT, TURN THE LEAD SCREW (D) IN THE DIRECTION OF (F).
TOP TENSION CONTROL
SET AT "4"

MECHANICAL ADJUSTMENT

(C)
(D)
PULL THIS WAY
TO TIGHTEN
(C)
(E)
(F)
TO LOOSEN
(D)
(B)
(A)
FIG.1
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