UnionSpecial LF600 Series, Adjusting Instructions And Illustrated Parts List

Page 1: ...Adjusting instructions and illustrated parts list Two and three needle LF600 Standard Class differential feed flatbed coverstitch machines From the library of Superior Sewing Machine Supply LLC ...

Page 2: ...ence may have an adverse effect on the function of other related parts Implementation of Preventive Maintenance Schedule can bring about significant improvements in operator productivity by avoiding costly equipment breakdowns Whenever it becomes necessary to make repairs or replace parts on your machine be sure to insist on genuine UNION SPECIAL Repair Parts These parts are designed specifically ...

Page 3: ...th easily replaceable oil filter thumbscrew adjustable main and differential feeds independently driven rear needle guard and quick adjustable looper avoid LF632K200MV Two needle four thread offset differential feed machine for attaching cellarettes to knitted undergarments long length rib knit strip cut perpendicular to the wale or parallel with the wale Stitch type 602 Standard gauge Nos 8 and 1...

Page 4: ... refilled RUN MACHINE SLOWLY at 300 R P M for approximately five minutes while paying strict attention to the oil flow indicator which should rise in the oil filler cap A and remain steady while machine is running This must be noted to ensure that oil flow indicator is functioning and oil is circulating Check oil level while machine is running which MUST be maintained between the red lines of oil ...

Page 5: ...l l lt 1 LUBRICATION DIAGRAM I PRESSURE OIL L IINLET D Fig I 5 SIPHON RETURN FILTEA BY PASS I I From the library of Superior Sewing Machine Supply LLC ...

Page 6: ...PIVOT GUARD TO LEFT FOR THREAD I A 111A I I I I THREADING DIAGRAM 6 From the library of Superior Sewing Machine Supply LLC ...

Page 7: ...ble groove struck groove ball eye spotted ball point chromium plated SIZE AVAILABLE 65 025 70 027 75 029 80 032 90 036 100 040 To have needle orders promptly and accurately filled an empty package a sample needle or the type and size number should be forwarded Use description on label A complete order would read 11 1000 needles Type 128 GBS Size 75 029 The following instructions explain in detail ...

Page 8: ...r has been removed for clarity in Figure 4 but MUST BE IN POSITION WHILE MAKING THE FOLLOWING ADJUSTMENTS Looper drive belt A Fig 4 has proper tension if when turning handwheel in operating direction to position looper in the center of its right to left travel there is no noticeable right to left play in the looper mechanism There should be approximately 1 8 inch 3 2mm deflection in looper drive b...

Page 9: ...f 1 graduation on the scale is permissible If the reading is above 0 loosen screws E Fig 4 and turn rear looper drive sprocket B towards the operator clockwise as viewed in Figure 4 If the reading is below non turn sprocket away from operator counter clockwise as viewed in Figure 4 Tempor arily snug screws Rotate handwheel in OPERATING direction until pin in looper holder contacts gauge plate and ...

Page 10: ...ear looper drive sprocket B away from operator For Proper SYNCHRONIZATION of looper Ne dle the same AI H Sketch C REVERSE DIRECTION 1 counterclockwise as viewed in Figure 4 If the distance was greater when handwheel was turned in reverse direction as viewed in Sketch C turn sprocket towards the operator Looper BEHIND Needle Looper in FRONT of clockwise as shown in Figure 4 Needle Temporarily snug ...

Page 11: ... Loosen two screws A Fig 8 in throat plate support B Loosen two screws C which secure locating ferrules allowing the throat plate support to be repositioned slightly Tighten screws C first then screws A CAUTION Needle bar has a special coating DO NOT wedge or pry with any type of tool as damage to same may result Should needle head require assembling to needle bar TORQUE 14 16 in lbs 16 18 em kg L...

Page 12: ...sening screw A Fig 11 and move needle bar B up or down as required TORQUE screw A to 10 12 in lbs 11 5 14 em kg IMPORTANT Care must be taken not to disturb ALIGNMENT of needle bar while making this adjustment CAUTION Needle bar has a special coating DO NOT wedge or pry with any type of tool as damage to same may result LOOPER AVOID Machine is equipped with a quick adjustable looper avoid mechanism...

Page 13: ...ng surface to be centered to needles Position collar against needle guard shaft bushing and tighten screw D securely Rotate guard as required to obtain 002 inch 051mm clearance between guarding surface and needles Take up thrust by exerting pressure against collar to the left and pivot link to the right while tightening pivot link screw E securely As the looper travels from right to left position ...

Page 14: ...highest point of travel A slight 4 way directional adjustment of the throat plate can be accomplished by loosening two screws A Fig 17 in throat plate support B Loosen two screws C which secure locating ferrules permitting movement of throat p1ate support Reposition as required considering BOTH the needle ho1es and feed dog s1ots in throat p1ate Tighten screws C FIRST then screws A Under EXTREME c...

Page 15: ...ifferential feed dog front to rear in the same manner as main feed dog by loosening collar C Fig 19 and turning differential feed knob B Fig 18 Loosening Allen screw D Fig 20 and turning eccentric E NOTE Adjustment of differential feed dog should not require resetting of feed rocker tilting shaft B Fig 19 CAUTION While adjusting for maximum and centralized feed travel continually check c1earanee b...

Page 16: ...eed dogs NOTE Adjustments were performed under 11 FEED DOG SETTINGS SPREADER AND RELATED PARTS Stationary spreader thread guide A Fig 23 should be positioned with its outer front edge 9 32 inch 7 1mm to the front of the centerline of right needle The left rear edge of the banana shaped SLOT in guide A should be positioned 1 16 inch 1 6nm to the right of the centerline of right needle as shown in F...

Page 17: ...rear side of spreader blade should clear the shank of left needle by 1 64 to 1 32 inch 0 4 to 0 8mm throughout its arc of travel Adjustment can be made by 1oosen i ng screws C reposition as required and retighten screws securely While rotating handwheel in operating direction spreader should be TIMED so it begins to move from extreme left position to the right as needle bar descends 1 16 inch 1 6m...

Page 18: ... specified length of travel is obtained tighten nut E securely MACHINE STYLES LF632K200MV 8 LF632K200MV 12 LF633K20DMM 16 LF633K200MN 16 LF633K200MW 16 SPREADER TRAVEL 11 X 11 33 64 37 64 5 8 5 8 5 8 inch inch inch inch inch 13 1mm 14 7mm 15 9mm 15 9mm 15 9rrm With spreader at extreme LEFT end of travel the TIP of thread carrying notch A Fig 30 should be 7 32 inch 5 6mm to the left of the centerli...

Page 19: ...mately equal distance front to rear of eyelets Adjustment can be made by loosening screw C reposition take up A as required and retighten screw C securely More or less thread can be supplied in the system by 1ooseni ng screw D and move bracket B downward for more thread or upward for less thread Retighten screw D securely PRESSER BAR AND PRESSER FOOT With needle bar at bottom of stroke and presser...

Page 20: ...pring regulator down Back off screw A to obtain the 1 64 inch 0 4mm dimension between bottom of screw and bottom of slot in presser bar guide plate B lock nut F loosen screw G in lifter arm H and rotate ann slightly as required to obtain the 1 16 inch 1 6mm dimension between link C and guide D retighten screw G ensuring no left to right shake in lifter arm H Loosen lock nut A Fig 35 and adjust scr...

Page 21: ... clearance between cutting edge of looper thread anti wrap up knife C and hub D of looper thread take up which can be adjusted by repositioning latch D Fig 38 Set adjustable eyelets E Fig 37 in the center of less looper thread can be supplied in the stitch the right or left respectively If retaining finger is rubbing take up loosen screw F center the finger G and retighten screw If retaining finge...

Page 22: ... needle bar at TOP of stroke needle thread take up wire holder A Fig 40 should be positioned front to rear with 1 16 inch 1 6mm clearance between front surface of front take up wire and centerline of front eye in needle bar eyelet B If adjustment was required be sure to center take up wires between eyes of needle bar eyelet Adjustment of parts mentioned accomplished by loosening their screws repos...

Page 23: ...p 1 2 9 EXPLODED VIEWS AND DESCRIPTION OF PARTS 23 From the library of Superior Sewing Machine Supply LLC ...

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

Page 25: ...phon side 1 Collar positioning and thrust I Screw 2 Pin dowel 1 Shaft drive 1 Screw I Bushing oil delivery 1 Retainer wire 1 Tube oil return 1 Restrictor oil 2 Cap oil indicator 1 Indicator oil priority metering valve 1 Connector oil single feed 1 Connector oil single feed 4 Screw oil connection 2 Clamp oil tube 2 Stand oil plug 1 Gear driven oil pump 1 Screw 2 0 Ring 1 0 Ring 1 Screw I Screw lock...

Page 26: ...p 1G 26 TORQUE TO 21 in lbs g _2 em kg l From the library of Superior Sewing Machine Supply LLC ...

Page 27: ...ake up shaft 1 Bushing spreader rocker shaft left 1 Bushing needle bar upper 1 Plug aluminum 1 Plug oil 1 Screw plug 1 Screen needle bar bushing 1 Shield needle bar bushing 1 Plug oil 1 Plug oil 1 Screw plug 2 Screw locking 5 Screw plug 4 Plug steel 1 Screw plug 1 Screw set 1 Bushing presser foot lifter lever right 1 Bushing spreader rocker shaft right 1 Bushing presser foot lifter lever rear I Sc...

Page 28: ... _ p 17 42 28 I 1 I 32 I J 21 From the library of Superior Sewing Machine Supply LLC ...

Page 29: ...er top 1 Screw 4 Plug oil 4 Cap oil filler 1 Gasket 1 Gasket 1 Screw 10 Cover 1 Screw Screw adaptor Cover Screw Throat Plate see SEWING COMBINATIONS Screw Ferrule locating Screw Support throat plate Bumper rubber Stud latch spring Shield lint Screw Screw Plug plastic Cover end Screw bearing Gasket Cover feed chamber rear Screw Support cloth plate for Styles LF633K200MM LF633K200MN Support cloth pl...

Page 30: ...13 TORQUE TO 16 in lbs 1 TORQUE TO 14 16 in lbs 16 18 em kg p 1 18 19 TORQUE TO 16 18 in lbs 18 21 em kg 30 t I l From the library of Superior Sewing Machine Supply LLC ...

Page 31: ...edle bar for Style LF632K200MV 12 Head needle bar for Styles LF633K200MM MN MW Eyelet thread Screw for No C50018 G 16 Screw for Nos C50018 8 and C50018 H 12 Screw set Screw Guide needle thread for Nos C50018 8 and C50018 H 12 Guide needle thread for No C50018 G 16 Stud support Screw Bar needle Eyelet needle bar Screw Screw Fitting male barbed Scotch Yoke Assembly Screw Screw Screw Tube air Plug Co...

Page 32: ...53 57 54 51 55 J 49 p 11 g 32 From the library of Superior Sewing Machine Supply LLC ...

Page 33: ...ing lower mainshaft 1 Screw 2 Screw set Housing lower mainshaft Seal oil Washer thrust Screw retaining lower mainshaft ho sing Washer spacer Stud locating Gear oil pump drive nylon Screw set Screw spot Gear toke up drive Screw Pump Assembly oil siphon Clamp tube Tube brass Felt Collar Screw Belt looper drive Connecting Rod needle guard Screw Screw Seal oil Shaft rear needle guard Pin pivot Washer ...

Page 34: ...6 31 29 10 1 2 0 34 21 28 18 l 19 20 22 26 27 o 16 23 26 From the library of Superior Sewing Machine Supply LLC ...

Page 35: ...Description Amt Reg Screw 1 Washer 1 Spring latch 1 Bracket mounting 1 Screw 3 Plate Assembly cast off support I Screw 1 Bracket retaining finger support 1 Screw 1 Support retaining finger 1 Finger retaining 1 Screw 4 Eyelet 2 Washer 2 Strike off I Plate cast off support 1 Screw 1 Knife anti wrap up back I Knife anti wrap up front I Screw 2 Washer spring 2 Screw shoulder 1 Take Up Assembly I Screw...

Page 36: ...3 1 15 14 1 18 28 p 1 2 1 36 From the library of Superior Sewing Machine Supply LLC ...

Page 37: ...on Mainshaft lower left 1 Screw 1 o Ring 1 Screw set 2 Shaft rocker 1 Stud eccentric 1 Rocker feed main 1 Screw 1 Screw plug 1 Bushing rocker shaft 1 Fork Assembly driving main 1 Eccentric double main 1 Screw 2 Washer cup 1 Bushing stitch adjusting shaft 1 Pad brake 1 Screw 1 Shaft Assembly main feed stitch adjusting 1 Retainer spring 1 Screw tension feed adjusting 1 Spring 1 Holder spring 1 Lever...

Page 38: ...8 1 t 1 29 38 From the library of Superior Sewing Machine Supply LLC ...

Page 39: ...stitch adjusting 1 Rocker feed differential I Screw 1 Stud eccentric 1 Eccentric double differential 1 Screw 2 Fork Assembly driving differential I Feed Bar Assembly includes main differential feed bars and blocks I Screw 2 Feed Dog differential see 11 SEW1NG COMB1NATIONS11 1 Holder differential feed dog I Screw 2 Holder main feed dog 1 Screw 1 Feed Dog main see 11 SEW1NG COMBINATIONS 1 Screw stab...

Page 40: ...53 PHJ 40 From the library of Superior Sewing Machine Supply LLC ...

Page 41: ...er spreader holder shaft 1 Screw 2 Pin Link 1 Arm rocker shaft 1 Screw 1 Yarn Columbia 6 strands 6 inches 152 4rnm long 1 Shaft spreader rocker 1 Collar thrust 1 Screw 2 Nut 1 Washer 2 Lever rocker shaft 1 Screw 1 Stud connecting 1 Spreader Drive Eccentric Assembly 1 Screw 2 Washer thrust 1 Ring retaining 1 Take up spreader thread 1 Screw 1 Arm driving lever 1 Screw 1 Seal oil 1 Shaft 1 Collar thr...

Page 42: ...26 5 p 1 4 42 1 36 11 I I 38 ft 111 31 L ___J From the library of Superior Sewing Machine Supply LLC ...

Page 43: ... 2 Needle Thread Control Assembly I Nut I Plate needle thread control 1 Spacer 1 Eyelet adjustable 1 Screw I Pin thread tension release 2 or 3 Post tension 3 or 4 Disc tension 6 or 8 Shield tension spring 3 or 4 Washer tension release 2 or 3 Ferrule tension post 3 or 4 Washer 3 or 4 Housing tension assembly 3 or 4 Pin tension release actuating 2 or 3 Screw 2 or 3 Screw 5 Gasket 5 Spring looper thr...

Page 44: ...II 10 Ill 3 p 1 2 5 44 From the library of Superior Sewing Machine Supply LLC ...

Page 45: ...esser bar guide 1 Guide presser bar 1 Screw 2 Nut lock I Screw adjusting 1 Spring presser bar 1 Guide presser bar spring 1 Regulator presser bar spring 1 Screw 1 Washer spring 1 Link presser foot lift 1 Lever presser foot lift upper left I Screw 1 Shaft presser foot lift upper I Screw 2 Seal oil I Sleeve tension release 1 Screw 2 Collar tension release adjusting 1 Screw 2 Spring tension release re...

Page 46: ...38 37 29 p 1 26 46 I l 18 16 15 From the library of Superior Sewing Machine Supply LLC ...

Page 47: ...MV 12 1 Shank presser foot 1 Screw 1 Screw 1 Screw 1 Spring 1 Bottom presser foot for No 52820 H 8 I Bottom presser foot for No 52820 H 12 1 Section yielding 1 Guide adjustable 1 Screw 1 Screw hinge 1 Feed Dog differential for Style LF633K200MM 1 Feed Dog main for Style LF633K200MM 1 Throat Plate for Styles LF633K200MM LF633K200MN 1 Presser Foot for Style LF633K200MM 1 Shank presser foot 1 Screw 1...

Page 48: ...11 9 16 p 1 27 48 From the library of Superior Sewing Machine Supply LLC ...

Page 49: ...8rrm 112 12 7mm Top 3 64 1 2mm 23406 R 5 8 MV 8 5 8 MV 12 5 8 BSb 1 1 112 38 1mm 5 8 15 9nnn Top 3 64 l 2mm 23406 U 3 4 MV 8 3 4 MV 12 3 4 BSb 1 1 3 4 44 4mm 314 19 0JIIJI Top 3 64 1 2mm 23406 S 3 4 MV 8 3 4 MV 12 3 4 BSb 1 1 13 16 46 Omm 3 4 19 0mm Top 5 64 2 0mm K59055 MV 8 7 8 MV 12 7 8 BSb 1 2 1 8 54 0mm 7 8 22 2mm Tup 3 64 l Zmm 23406 T 7 8 IV 8 7 8 MV 12 7 8 BSb 1 SO Bmm 7 8 22 2mm Top 5 64 ...

Page 50: ... 17 t 1 2 50 From the library of Superior Sewing Machine Supply LLC ...

Page 51: ...achines 1 Thread Stand Assembly for 5 thread machines 1 Nut I Washer 6 Bolt 3 Isolator 4 Support 2 Cradle machine 1 Support I Washer 14 Bolt 5 Nut 9 Washer 6 Rod threaded 3 Nut 9 Rod 3 Nut 6 Chain presser foot lift 1 Rod threaded 1 Bracket motor mounting 1 Hook 11 5 11 2 Tweezer thread 1 Stand machine 4 Screwdriver 1 Container of oil 6 ounces 455 ml Spec 175 not shown I CHIP CHUTE PARTS I I 2 I 35...

Page 52: ...0 966 41 660 969 39 660 979 33 660 980 37 39 660 986 35 45 660 998 33 661 26 43 661 35 37 39 661 50 37 39 661 51 25 666 214 33 666 310 25 666 311 27 667 J 33 33 667 M 14 45 668 885 25 670 E 2 25 671 F 41 25 820 25 898 A 3 49 898 A 4 49 907 49 999 211 c 37 999 211 E 25 999 215 41 999 216 c 29 1059 31 52 Part No Page No RM2879 2 29 RM3211 3 51 RM3211 5 51 RM3293 3 51 RM3293 4 51 6042 A 25 33 11534 4...

Page 53: ...5 22894 x 31 33 41 22894 AB 37 39 22894 AD 31 33 22894 AE 33 23432 B 49 23439 E 49 23439 G 49 28604 R 51 29105 AT 33 29126 EM 41 29126 EU 39 29126 FA 39 29126 FB 37 29192 AE 33 29475 BT 41 29476 PG 43 35021 33 35021 B 33 35032 H 41 35034 0 39 35034 E 39 35034 F 37 35034 G 39 35034 J 37 39 35034 M 37 35034 N 37 35036 c 37 39 35036 F 37 39 35036 x 2s 53 Part No Page No 35036 AB 27 35036 AE 29 35036 ...

Page 54: ...29 C50093 AX 27 C50093 AY 27 31 C50093 CA 25 C50093 CB 25 C50093 CJ 25 31 C50093 CN 27 C50093 CT 27 C50094 8 25 csoo94 c 2s C50094 R 25 C50094 X 31 C50094 Y 25 C50094 AK 25 C50095 0 29 C50095 E 29 C50095 R 29 csoo95 s 29 50301 29 50301 B 29 5030 E 29 50301 s 29 50301 u 29 50301 x 29 50303 49 50303 A 43 50304 c 35 50305 47 50305 D 47 50305 E 47 50309 33 50313 33 50314 33 50314 A 33 50322 37 54 Part...

Page 55: ...0392 M 41 50393 A 25 50393 c 25 50393 D 25 50393 E 25 50393 F 25 50393 J 25 50393 N 25 50393 s 33 50393 u 29 50393 v 25 50393 w 43 50393 X 25 50393 AL 33 50393 AN 33 50393 AR 25 50393 AT 25 50393 AU 25 50393 AV 25 50393 AW 25 50393 AX 25 50393 AY 25 50393 BA 25 50393 BB 25 50393 BK 25 50394 B 25 50394 G 25 50394 J 29 50394 K 25 50394 L 25 50394 s 27 51292 A 43 55 Part No Page No 51758 43 51858 43 ...

Page 56: ...00 LF600 spec I75 must be used Clean lint and dirt from suction screen LF600 inside bottom cover Clean head oil suction screen LF600 Check tension on internal timing belts LF600 LF600 Inspect clutch positioner motor V belt tension and wear LF600 Check clutch motor clutch brake adjustment LF600 Clean lint from LF600 iLF600 clutch positioner motor air passages Check needle S bent blunt sharp I or wo...

Page 57: ...MACHINE INVENTORY INFORMATION Unit Maker s Name Machine Serial Number Needle Type Date Of Number Style Purchase ADDITIONAL INFORMATION From the library of Superior Sewing Machine Supply LLC ...

Page 58: ...Notes From the library of Superior Sewing Machine Supply LLC ...

Page 59: ...Notes From the library of Superior Sewing Machine Supply LLC ...

Page 60: ...orporation representative to serve you Check with your Representative today 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 FINEST QUALITY Brussels Belgium Commerce CA Leicester England Opa Locka FL Paris France Gainesville GA Norcross GA Stuggart Germ...