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[TO CHECK]
1. TURN THE POWER ON.
SELECT THE STITCH ( ).
2. PRESS THE STITCH LENGTH ADJUSTING KEY.
ADJUST THE STITCH LENGTH TO “0”.
TURN THE POWER SWITCH OFF.
3. LOWER THE FEED DOGS.
4. REMOVE THE MACHINE BASE AND BELT COVER
(SEE PAGE 2 AND 3).
5. CHECK IF THE BED AND UPPER FEED LOWER
SHAFT REAR ARM ARE PARALLEL.
[ADJUSTMENT]
6. SET THE UPPER FEED ADJUSTING DIAL TO 0.
7. LOOSEN THE SETSCREW (A) SO THE
CLEARANCE BETWEEN THE UPPER FEED LINK
SHAFT AND UPPER FEED LOWER SHAFT
SHOULD BE 2.5 mm.
UPPER FEED DOG ADJUSTMENT (1)
THE CLEARANCE BETWEEN THE UPPER FEED LINK SHAFT AND UPPER FEED LOWER SHAFT SHOULD BE
2.5 mm WHEN ADJUSTING THE DUAL FEED BALANCING DIAL TO “0”.
DUAL FEED BALANCING DIAL
BED
PARALELL TO
THE BED
2.5 mm
VIEW FROM THE BELT COVER SIDE
MECHANICAL ADJUSTMENT
Содержание MC7700 QCP
Страница 1: ...SERVICE MANUAL PARTS LIST MC7700 QCP...