UnionSpecial 56500R Adjusting Instructions

Contents

14PRESSER BAR HEIGHT (CONT.)Adjustment can be made by turninghandwheel to position needle bar at bottomof stroke. Loosen screw (C, Fig. 13) and whileholding presser foot down on throat plate,position presser bar connection and guide asrequired to attain specified clearance andretighten screw.PRESSER FOOT PRESSURERegulate presser spring regulating screw (A,Fig. 14) so that it exerts only enough pressureon the presser foot to feed the work uniformlywhen a slight tension is placed on the fabric.Turning it clockwise increases the pressurecounterclockwise acts the reverse.NEEDLE THREAD TAKE-UP WIRE AND FRAME EYELETSet needle thread take-up wire (B, Fig. 14), so that itsupper surf ace is even with the top of the holes inneedle bar thread eyelet (C) when needle bar hascompleted its downward stroke. Lower this settingfor a smaller needle thread loop, or raise it for alarger loop. Set needle thread frame eyelet (D) sothat the eyelet hole is 5/8 inch (15.9mm) above theattaching screw.CHANGING STITCH LENGTHSet the stitch to required length. This is accomplished by loosening locknut (F, Fig. 11) on the end of thestitch regulating stud 1/2 turn (it has a left hand thread). Turn stitch adjusting screw (G) located underthe left end of the cloth plate, in the end of main shaft (H), which is marked with “L” and “S”. Turningthe screw clockwise shortens the stitch (moves stitch regulating stud toward the “S”) and turning it in acounterclockwise direction lengthens the stitch (moves stitch regulating stud toward the "L"). Retightenlocknut securely. To prevent destructive damage to the feed drive bearing, key screw (J) must engagethe “U” shaped key slot in ferrule (K).