Страница 1: ...SINGER 231 25...
Страница 2: ...power tables and transmitters NOTE All of the above oils are available in 1 quart 1 gallon and 5 gallon cans GEAR LUBRICANT This specially prepared grease is recommended for gear lubrication on manuf...
Страница 3: ...s Reserved for All Countries 3 DESCRIPTION FEED OFF THE ARM MACHINE 231 25 has two needles and two loopers and makes the two thread chain stitch for lap seam felling boys shirts pajamas and other tubu...
Страница 4: ...base and bed extension then locate and drill holes in the table and fasten the angle straps B of the dampeners to the table with l 4 x 2 l 4 inch bolts 5 The cylinder arm cover of the machine should b...
Страница 5: ...HIS RESERVOIR SHOULD NEVER BE ALLOWED 7 TO GO BELOW THE HOLE AT THE CENTER OF THE ARM SHAFT If the oil is down to the bottom of this hole add oil before starting Other wise run the machine a few minut...
Страница 6: ...then tighten the two set screws TO REGULATE THE TENSIONS The tension on the needle threads is regulated by the thumb nuts above the tension discs at the top of the machine The needle threads require s...
Страница 7: ...he left needle A 14 TO THREAD THE RIGHT NEEDLE bring the thread from the sec ond spool Bl Fig 11 on the unwinder down through the hole B2 in the thread guide bar then down through each of the eyelets...
Страница 8: ...From the library of Superior Sewing Machine Supply LLC www supsew com 12 5 r I I t t I I r r i I 1 j i I 1 l 1 i k I 13 X ray View of Machine 231 2S...
Страница 9: ...ng plate D16 through the thread tube D17 Fig 17 through the front hole D18 in the looper thread guide through the hole D19 in the heel 15 of the front looper and from front to back through the eye D20...
Страница 10: ...should be at the end of their backward stroke with the points farthest from the needles at the same time that the needle bar is at its lowest point In this position the point of the front looper shoul...
Страница 11: ...r arm and move the needle guard to ihe correct position TO SET THE FEED DOG AT THE CORRECT HEIGHT When the feed dog is at its highest point practically the full depth of the teeth should project throu...
Страница 12: ...of the take up Ul Fig 24 should touch the thread between the take up stripper wires Tl just as the loopers KEEP OIL TO 0 MARK ON GAUGE Fig 24 21 start their backward or loop shedding motion The take u...