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SEWING MACHINE DtV. 20 MODEL 384. 15358
MECHANICAL ADJUSTMENT
MOTOR BELT TENSION
TO CHECK:
1. IMPROPER BELT TENSION MAY CAUSE NOISE, OVERLOAD OF MOTOR, SLOW
RUNNING OR MOTOR BELT JUMPING.
2. THE BELT DEFLECTION SHOULD BE 7 MM - 9 MM WHEN PRESSING THE MIDDLE
OF THE MOTOR BELT WITH APPROXIMATELY 300 GRAMS OF PRESSURE.
ADJUSTMENT PROCEDURE:
1. REMOVE THE BELT COVER (SEE PAGE 7).
2. LOOSEN THE SCREWS (A) AND (B).
3. MOVE THE MOTOR UP OR DOWN TO ADJUST THE DEFLECTION ABOUT 7 MM -9
MM.
4. TIGHTEN THE SCREWS (A) AND (B).
5. ATTACH THE BELT COVER.
(A)
LOAD
7-9MM
(B)
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