Singer 591UTT Service Manual Download Page 4 | Manualshive

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From the library of: Superior Sewing Machine & Supply LLC

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Summary of Contents for 591UTT

Page 1: ...SINGER 591 UTT Service Manual From the library of Superior Sewing Machine Supply LLC...

Page 2: ...ing Plate 13 Adjustment ofGap Between Tension Discs 13 14 Timing ofTension Release 14 Adjusting the Length of Needle Thread End 14 15 Adjustment ofThread Wiper 15 Back Tack Device 16 21 Principal Part...

Page 3: ...In addition to the under bed thread trimming unit a back tackingsystem is incorporatedin the G variety machines The automatic back tack switch and control box relay the electronic commandsto the buil...

Page 4: ...RELEASE ACTION PLATE STATIONARY KNIFE WVW ROTATING HOOK SHAFT THREAD PULLER BRACKET THREAD PULLER ACTION CAM FOLLOWER TENSION RELEASE ACTION CAM THREAD PULLER ACTION CAM THREAD PULLER ACTION PLATE Fi...

Page 5: ...ion of the sewing cycle the machine stops approximately Smm 118 beyond the bottom dead center of the needle Fig 5 hook point in the loop of needle thread when the sensor plate A red reaches a point sh...

Page 6: ...eads are positioned as shown also in Fig 9 Simultaneously the thread puller action plate pushes the tension release action plate making its pin ride on the tension release action cam Immediately when...

Page 7: ...r closes in against the cutting edge of the stationary knife Fig 12 and 13 9 When the threads are trimmed the spring biased tension release action plate moves back to its rest position disengaging its...

Page 8: ...ular 591 machine Check and adjust the trimmer mechanism in the order instructed in this manual since it isinterlocked with many otherarea Adjustment of Needle Stop Position When checking and making ad...

Page 9: ...f the sensorand turn sensor plateasrequired then tighten the screw SENSOR PLATE C TRIM SOLENOID OFF SENSOR SET SCREW Fig 15 39 SENSOR SET SCREW SENSOR PLATE D UPPER NEEDLE POS 149 SENSOR PLATE A LOWER...

Page 10: ...nd set screws Timing Actuation of Trimmer Solenoid The trimmer solenoid is actuated when the take up lever reaches a point lOmm 394 before its lower dead center The timing of this actuation is control...

Page 11: ...learance between flange of plunger and sole noid should be 4mm 157 Setting of Stationary Knife The stationary knife should be set so that there is a clearance of 0 3mm 012 between its cutting edge and...

Page 12: ...ve bracket as required then firmlytighten the two screws NEEDLE MOUNTING SCREW HOLES Fig 23 Note When replacing the feed dog with a new one use only Singer part Further the feeddogshouldnot be set low...

Page 13: ...puller action cam and the two tension release action cam set screws 2 Tum thread pulleractioncamuntil its highest point islocatedopposite the follower on thread pulleractionplateandslide thread puller...

Page 14: ...nds to the point shown in Fig 26 or 27 3 Tum thread puller action cam until its timing mark is aligned with the timing mark on the thread puller action plateand while holding the thread pulleraction c...

Page 15: ...case of 200typemachine and78 3mm 3 083 in the case of 300 type machine Figs 29 and 31 This timing will be acceptable for the majority of threads however in some instances it may be necessary to depart...

Page 16: ...the needle thread tension just before the thread puller begins tomake its return stroke to trim the threads When adjusting this timing 1 Check timing oftension release action cam Refer toTiming ofTen...

Page 17: ...ws Fig 35 Move the slack thread regulatoraction plate up to shorten and down to lengthen the needle thread end SHORTER LONGER SLACK THREAD REGULATOR ACTION PLATE Fig 35 Adjustment of Thread Wiper The...

Page 18: ...ME ACTION SHAFT 5 0mm STROKE BACK TACK SOLENOID BRACKET FEED ROCK SHAFT DRIVING FRAME HINGE PIN LEFT BACK TACK SOLENOID BRACKET SCREW Fig 36 FEED ROCK SHAFT DRIVING FRAME ACTION LEVER STOPPER 1 OiiitB...

Page 19: ...FRAME ACTION LEVER SCREWDRIVER FEED ROCK SHAFT DRIVING FRAME ROLLER FEED ROCK SHAFT DRIVING FRAME SPRING STOPPER SPRING REGULATING SCREW 17 FEED REVERSE LEVER HINGE STUD CRANK CONNECTING LINK FEED RO...

Page 20: ...itchesin reverse iscontrolledby the control box Back tacking can be done at any desired position during the sewing operation by depressing the pushbuttonswitch provided adjacent to the needle bar The...

Page 21: ...haft drivingframe toward B Setting of Feed Rock Shaft Driving Frame Action Shaft and Collar Feed Rock Shaft Driving Frame Action Shaft The feed rock shaft driving frame action shaft supported by the l...

Page 22: ...ing Set feed regulating dial to 6 and depress feed reverse lever as far as it will go While holding the feed reverse lever in this position loosen the stopper spring regulating screw lock nut and adju...

Page 23: ...terminals on the control box making sure they are correctly and fully inserted into the terminals Fig 40 Checkthat the sensor cord back tack switchcord and other wiring in the machine are not in cont...

Page 24: ...MEMO From the library of Superior Sewing Machine Supply LLC...

Page 25: ...MEMO From the library of Superior Sewing Machine Supply LLC...

Page 26: ...MEMO From the library of Superior Sewing Machine Supply LLC...

Page 27: ...Form U3241 Rev 1181 Part No 543247 002 Rev 1 Printed in Japan From the library of Superior Sewing Machine Supply LLC...

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