UnionSpecial 50000 Series, Adjusting Instructions And Illustrated Parts List

Page 1: ...9VF Second Edition STYLES 56300VF 56300VG Finest Quality Adjusting instructions and illustrated parts list l u Series 50000 Machines with Air Kiipp Chain Cutter From the library of Superior Sewing Machine Supply LLC ...

Page 2: ...STRATED PARTS LIST FOR SERIES 50000 MACHINES WITH AIR KLIPP VACUUM TYPE CHAIN CUTTER STYLES 56300 VF 56300 VG Second Edition 1977 1982 By Union Special Corporation Rights Reserved in All Countries Printed in U S A June 1982 2 From the library of Superior Sewing Machine Supply LLC ...

Page 3: ... ordering repair parts This catalog applies specifically to the Standard Styles of machines as listed herein It can also be applied with discretion to some Special Styles of machines in this class References to direction such as right left front back etc are given from the operator s position while seated at the machine Operating direction of handwheel is toward the operator STYLES OF MACHINES IN ...

Page 4: ...ed Thread should pass freely through needle eye in order to produce a good stitch for mation USE GENUINE REPAIR PARTS Success in the operation of these machines can be secured only with genuine UNION SPECIAL repair parts as furnished by the Union Special Corporation its sub sidiaries and authorized distributors They are designed according to the most ap proved scientific principles and are made wi...

Page 5: ...must be filled before starting to operate Maintain oil level in OPERATE position and add oil when needle is to the black line located to the left of the OPERATE zone marked LOW The machine is automatically lubricated and no oiling other than keep ing the main reservoir filled is necessary For further lubricating instructions refer to paragraph on LUBRICATION and RECOMMENDED OIL Thread machine Styl...

Page 6: ...achine out of service for an extended period of time lubricate machine as follows Remove head cover clean out lint then directly oil needle bar link and needle bar Replace head cover and fill machine with oil to proper level Run machine at low RPM to ensure proper lubrication of components preventing any damage which may occur from lack of oil distribution ADJUSTING INSTRUCTIONS OIL GAUGE CALIBRAT...

Page 7: ...eedle in in OPERATING REVERSE Direction Dir ection Fig 4 Fig 5 NOTE The 1 64 inch 4rrm dimension shown in Fig 4 is for final setting of needle bar height Adjust looper drive rocker lever shaft as follows Loosen screw C Fig 3 in looper drive lever D A rod of 146 40 thd or Union Special Screw No 22870 A can be threaded into the looper drive lever rocker shaft through the center of thrust ad justing ...

Page 8: ...ehind the needle its point A Fig 7 brushes but does not pick at the rear of needle B If adjustment is necessary loosen lock screw G Fig 6 and turn stop screw H as required Turning stop screw clockwise sets the looper to the rear and turning it counterclockwise acts the reverse Holding looper to the front while making this adjustment may prove helpful Tighten lock screw when setting is obtained and...

Page 9: ...hould have equal clearance on both ends of the throat plate slots with feed travel set to desired stitch 1ength Should it be necessary to move the feed dog forward or backward loosen nut E Fig 11 which clamps the feed rocker arm to the feed rocker and move the feed rocker forward or backward as needed and retighten nut CHANGING STITCH LENGTH Set the stitch to required length This is accomplished b...

Page 10: ...change in rear needle guard setting THREAD TENSIONS Tension on the needle thread should be only sufficient to produce uniform stitches on the under surface of the fabric Pull needle thread through the eyelets and set the needle thread tension at 3 ounces 85 05 gr Looper thread tension is applied at the cast off sup port tension disc assembly and the adjusting nut should be set so that the tension ...

Page 11: ... directly behind the needle clockwise increases the pressure bar in the head of the machine Turning it counterclockwise acts the reverse THREADING Refer to threading diagram Fig 1 for the manner in which these machines are threaded SETTING NEEDLE THREAD TAKE UP WIRE AND FRAME EYELET These machine styles are equipped with thread handling and control parts so the adjusting sequence should be made in...

Page 12: ... needle while keeping the needle in the center of needle slot tighten set screw D securing presser bar guide to the presser bar making sure that the stop screw in presser bar guide is resting on the bed casting Replace presser spring and presser spring regulator Turn presser bar spring regulator screw down until the threaded portion is level with the head casting Note Any change ir the alignment o...

Page 13: ...e is being held against the bottom of the up per knife C by spring A Fig 19 and will come out of place when upper knife is removed 2 Loosen screw B Fig 19 and move lower knife holder C Fig 19 forwards or backwards for correct knife travel with the knife at its farthest travel to the right Fig 19 Fig 20 SPECIAL INSTRUCTIONS NEEDLE LEVER When adjusting needle lever or replacing related parts follow ...

Page 14: ... viewed lookinq down from rear of machine spot screws A Fig 21 in the couplings must align w ith the spots in the looper drive crank B and set screws C must align with the flats on crankshaft D and mainshaft E Mainshaft must be positioned laterally with 045 inch 1 14mm clearance between the right side of its head and the bed casting as shown in Fig 22 Looper drive crank B Fig 21 must be positioned...

Page 15: ...ith its tip in the recessed cut out in the bed casting as far to the left as possible without touching It has elongated mounting holes and can be adjusted by loosening 2 screws B in top of the oil reservoir back cover to position as re quired retighten screws Fig 23 15 From the library of Superior Sewing Machine Supply LLC ...

Page 16: ...22A lA 16 From the library of Superior Sewing Machine Supply LLC ...

Page 17: ...9659 B 99697 99669 D 56381 212 G56381 222 51281 AC 35772 H 22760 A 22845 B 99673 D 99652 A 99331 G56380 51280 J 80 660 313 GA51324 GA51324 W 22839 E 56301 D 43296 57 I B 1543f c 57 I D 605 A Description Air Klipp for Style 56300 VG Air Klipp for Style 56300 VF Screw Upper Knife Air Klipp Cover Oil Felt Screw Screw Washer Knife Holder marked MF Screw Air Klipp Frame Bushing Washer Nut Knife Driving...

Page 18: ...18 From the library of Superior Sewing Machine Supply LLC ...

Page 19: ...rew 2 9 671 F 1 Male Fitting 1 10 671 1 Air Valve 1 11 61242 Pitman Rod Collar 1 12 88 Screw 2 13 22651 CB 4 Set Screw 1 14 671 2 Air Valve Mounting Block 1 15 671 3 Air Valve Actuator Block 1 16 22651 CB 4 Set Screw 1 17 1453 A Pitman Rod 1 18 21371 MZ Connection 1 19 671 B 11 Air Tube 30 inches 762 0rrm long 1 20 671 0 2 Air Jet 1 21 671 B 3 Air Tube 45 inches 1143 Omm long 1 22 671 B 12 Air Tub...

Page 20: ... TX Commerce CA New York NY Philadelphia PA Woburn MA Opa Locka FL Montreal Quebec Toronto Ontano Catano Puerto Rico Brussels Belgium Leicester England Paris France Stuttgart W Germany Hong Kong It is important to remember that LEWIS and COLUMBIA machines are also products of Union Special Corporation thus offering the industry the most complete line of the Finest Quality sewing machines Other Rep...