DT3-B291 Cylinder Bed Needle Feed Double Chain Stitcher

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Lisa Copeland
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DT3-B291 Cylinder Bed Needle Feed Double Chain Stitcher Specifications DT3 - B291-060 - No. of needles & Needle gauge 7 Twin needle, 31.8 mm (1 1/4) 8 Twin needle, 34.9 mm (1 3/8) A 4 needle, 6.4-25.

1 DT3-B291 Cylinder Bed Needle Feed Double Chain Stitcher Specifications DT3 - B No. of needles & Needle gauge 7 Twin needle, 31.8 mm (1 1/4) 8 Twin needle, 34.9 mm (1 3/8) A 4 needle, (1/4-1 1/4) Sub-class 060 For sewing waist bands (heavy materials) Sub-class A Use For sewing waist bands jeans (for medium to heavy materials) No. of needles 2 4 Needle size Schmetz Nm110 Nm140 (#18 - #22) Needle gauge Twin needle 31.8 mm (1 1/4) Twin needle 34.9 mm (1 3/8) 4 needle (1/4-1 1/4) No. of threads 4 8 Max. stitch length 4.5 mm Presser foot lift height 10 mm Max. sewing speed 4,500 rpm DT3 B291 1/9

2 Optional parts *The optional parts listed below can all be installed to the sewing machine at any time after purchase. *The optional parts A to C listed below are pneumatic-type parts. Electronic control is not required for these parts, so that they can be used with clutch motors. Part name Part code Applicable subclass A Impact cutter set (pneumatic type) Cuts the chaining-off stitches using a cutter when the knee switch is operated. S A B Presser foot lifter set (pneumatic type) Raises the presser foot when the treadle is depressed backward. S A C Presser foot lifter & needle cooler set (pneumatic type) This is the same as the presser foot lifter set mentioned before, with a pneumatic-type needle cooler added. The needle cooler squirts air from a nozzle to cool the needle when the treadle is depressed forward, in order to prevent the thread from breaking due to heat. S DT3 B291 2/9

3 Optional parts Synchronizer This lets you set the preferred needle stop position. When the sewing machine stops, The needle stops at the position that has been set. Ref. No. Part name Part code Q ty 1 Synchronizer #17-2 J Synchronizer guide S Set screw, socket (CP) SM * Applicable subclasses are 060-7, 060-8, and 060-A. * When using the synchronizer, use the motor and V belt listed below. * Ref. No.3 and No.4 are packed together with the accessories for the machine. Motor MD601R (Single phase) MD611R (3-phase) The motor operating specifications must conform to these given below. Consult the place of purchase for details. Direction of rotation Forward Sewing speed 4,500 rpm V-belt Pulley O. D. (mm) (Standard) Belt size (inches) M38 M39 Lapper * Since lapper and lapper set bracket are not optional parts, please order. DT3 B291 3/9

4 When converting from 2-needle specification to 4-needle specification If a customer who has already purchased 2-needle specification would like to change it to 4-needle specification, order the parts listed below. Thread tension Red Light blue Yellow Green Red Light blue Yellow Green DT3 B291 4/9

5 Ref.No. Parts code Q ty Name of parts S Thread guide Tension stud Felt, ;T-disc Disc, tension Disc presser, ;tension Disc presser, ;tension Tension spring S Washer S Tension nut, yellow S Tension nut, light blue Tension release pin Thread guide pipe, S Thread guide pipe, L Set screw, socket (CP) SM S Thread guide, ;T-bracket Thread guide, ;needle Tension stud Felt, ;T-disc Disc, tension Disc presser, ;tension Tension adjusting spring 40 S Washer 42 S Tension nut, yellow 43 S Tension nut, light blue DT3 B291 5/9

6 When converting from 2-needle specification to 4-needle specification Cotton stand Ref.No. Parts code Q ty Name of parts 70-2 S Cotton stand assy, 8th Column pipe, D Column pipe Column cap S Pipe & screw set, A Washer, plain S Nut, U5/ S Rubber washer Column joint assy Column joint Screw, pan M Nut, 1 M S Holder support bracket assy S Holder support bracket Set screw, socket (CP) M S Holder shaft assy, S S Holder shaft, S Screw, pan M Washer, spring S Spool holder, S Spool holder, 3 DT3 B291 6/9

7 Ref.No. Parts code Q ty Name of parts S Spool screw, set, Spool shaft, B Washer, spring Nut, 1 M Screw, pan M Screw, pan M Washer, plain S S Spool & screw set, Spool shaft, B Washer, spring Nut, 1 M Screw, pan M Screw, pan M Washer, plain S S Spool stand base Spool mat S Spool cushion S Holder support set, A Spool holder support, A Screw, pan M Nut, 1M Wood screw, round M S Thread hanger assy, S Thread hanger, Thread hanger base Thread bush S Thread hanger assy, S Thread hanger, Thread hanger base Thread bush S Thread hanger assy S Thread hanger, Thread hanger base Thread bush Thread guide holder assy Thread guide holder Screw, pan M Nut, 1M S Support bar,;tr-guide Joint Set screw, socket (CP) M S Thread guide, 8 DT3 B291 7/9

8 When converting from 2-needle specification to 4-needle specification Gauge parts for 4-needle specification Needle gauge: mm Ref.No. Parts code Q ty Name of parts 1-3 S Needle clamp assy, 1/4-1-1/ Set screw, socket (CP) SM S Needle plate, 1/4-1-1/4; four 10-3 S Presser foot assy, 1/4-1-1/ S Holder bracket, ;P-foot S Spring, compression S Holder plate S Screw, SM S Screw, flat SM S Holder plate, ;movable S Shoulder screw, SM S Finger guard S Screw, M S Feed dog, 1/4-1-1/4; four 13-3 S Looper holder, 1/4-1-1/4; four 20-3 S Retainer assy, 1/4-1-1/4; four Ref.No. Parts code Q ty Name of parts 16 S Looper assy 16-1 S Looper 16-2 S Needle guard,; looper Set screw, socket (CP) M Bolt, socket M Set screw, (FT) SM DT3 B291 8/9

9 Gauge parts list Specifications A Label S S Application For sewing waist bands jeans (for medium to heavy materials) No. of needles Needle gauge 31.8 mm 34.9 mm mm Needle clamp assy S S S Needle plate S S S Presser foot assy S S S Feed dog S S S Looper holder S S S Looper S Retainer S S S DT3 B291 9/9

DB Four Needle Double Chain stitcher. Specifications. 4 needles. *A needle gauge for 60 is U1401 only. DB /

DB Four Needle Double Chain stitcher. Specifications. 4 needles. *A needle gauge for 60 is U1401 only. DB / DB-2810 Four Needle Double Chain stitcher Specifications 4 needles A Specifications No. needle of No of thread Needle size (UY113GS) Max. stitch length (mm) Height of presser foot (mm) Max. sewing speed