UnionSpecial LF611K 100HM, Adjusting Instructions And Illustrated Parts List

Page 1: ...First Edition STYLES LF611K 100HM LF611K 10OMF LF611K 100MG LF611K100MR LF611K100MW LF611K 100MAW LF611K 112MF LF611K112MG Finest Quality Adjusting instruc ions an illustrated parts 11st Single needle LF600 Standard Classn plain feed flatbed machines for seaming operations ...

Page 2: ...adjustments performed out of sequence 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...

Page 3: ... Stitch range 5 14 S P I Maximum recoR111ended speed 6500 R P M LF611KlOOMF Single needle MEDIUM sewing capacity machine with low inertia presser foot permitting 1ight presser foot pressure for positive feeding and chaining at high speeds for long seams on light to medium weight fabrics such as in trousers skirts coats jackets etc Standard recommended needle Type 128 GBS Size 90 036 Stitch range 7...

Page 4: ...od of time OR machines that have been drained of oil and 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 runnin...

Page 5: ...From the library of Superior Sewing Machine Supply LLC PtOO LUBRICATION DIAGRAM ____ PRESSURE OIL SIPHON RETURN Fig 1 5 FILTER BY PASS ...

Page 6: ...From the library of Superior Sewing Machine Supply LLC PIVOT GUARD TO LEFT FOR THREADING A1 00A THREADING DIAGRAM 6 0 ...

Page 7: ... but the ones indicated are those recommended to produce the most satisfactory results The type numbers of the recommended needles together with their descriptions and the sizes available are listed below NEEDLE TYPE 128 GAS 128 GBS DESCRIPTION Round shank round point short double groove struck groove ball eye spotted chromium plated Round shank round point short double groove struck groove ball e...

Page 8: ...y SYNCHRONIZING LOOPER AND NEEDLE MOTIONS NOTE End cover 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 ri9ht to left travel there is no noticeable right to left play in the looper mechanism There should be ap...

Page 9: ...gauge plate and note the reading on the gauge A variation of 1 graduation on the scale is permissible If the reading is above O loosen screws E Fi9 4 and turn rear looper drive sprocket B towards the operator clockwise as viewed in Figure 4 If the reading is below O turn sprocket away from operator counterclockwise as viewed in Figure 4 Temporarily snug screws Rotate handwheel in OPERATING directi...

Page 10: ...direction as viewed in sketch B loosen screws E Fig 4 and turn rear looper drive sprocket B away from operator counterclockwise as viewed in Figure 4 l _171lr __ GREATEST 1r 1 REVERSE DIRECTION A109 For Proper SYNCHRONIZATION of Looper Needle these two Dimensions will be the same Looper BEHIND Needle in OPERATING Direction SKETCH D Looper in FRONT of Needle in REVERSE Direction A1011 SKETCH C If t...

Page 11: ...essure 1 64 Inch to the upper portion of looper holder to the 4mm left while tightening screw A NEEDLE BAR HEIGHT Turn handwheel in operating direction until POINT of looper A Fig 8 is even with the LEFT side of the needle B TOP of needle eye should be 1 64 inch 4mm below Fig 8 the undersurface of looper blade as shown in Figure 8 Adjustment can be made by loosening screw A Fig 9 and move needle b...

Page 12: ...e Adjustment can be made by loosening collar screw D and pivot link screw E permitting guarding surface to be centered to needle Position collar against needle guard shaft bushing and tighten screw D securely Rotate guard as required to obtain 002 004 inch 051 102mm clearance between guarding surface and needle Take up thrust by exerting pressure against collar to the left and pivot link to the ri...

Page 13: ...cured with four screws Loosen Allen screw A Fig 14 and turn eccentric B while rotating handwheel in operating direction to obtain equal clearance in throat plate front and rear Tighten screw A securely Feed dog can be leveled or tilted by loosening screw A Fig 15 and rotate feed Fig 14 rocker tilting shaft A Fig 16 slightly as required Check parallelism of feed dog by placing throat plate in posit...

Page 14: ...f screw A Fig 19 and bottom of slot in presser bar guide plate B There should also be 1 16 inch 1 6mm clearance between bottom of slot in lifter lever link C and bottom of presser bar guide D when foot lifter lever is released If adjustment is required proceed as follows Back off presser bar spring regulator to release tension on spring Loosen two screws E in presser bar guide D Loosen nut F and t...

Page 15: ...nch 1 6mm dimension between link C and guide D retighten screw G Make sure that there is no shake left to right in lifter arm H FEEDING PRESSER FOOT For Styles LF611KlOOMR and LF611KlOOMAW With presser foot resting on throat plate and the needle in its lowest position the distance from top of spring A Fig 20 to top of yoke B should be 5 8 inch 15 9mm and the line stamped across the presser foot bo...

Page 16: ... 22 LOOPER THREAD TAKE UP AND CAST OFF PLATE looper thread take up A Fig 21 must be centered front to back in cast off plate B It should also be positioned so as the needle bar is descending the looper thread is cast off the highest lobe of looper thread take up when the point of the needle is even with the bottom of looper blade If adjustment is required lift cast off plate up Loosen screw A Fig ...

Page 17: ...oving plastic plug C and loosening screw D and lower the tension assembly A to advance the release action or raise tension assembly to retard the release action Hold tension assembly in position while retightening screw D Reassemble plastic plug securely THREAD CONTROL PRELIMINARY SETTINGS Needle bar eyelet A Fig 24 should be set with its eyelets 1 16 inch 1 6mm below strike off B on needle thread...

Page 18: ...to steady thread t _____ ____ A 128 Fig 25 POWER AIR KLIPP CHAIN CUTTER ADJUSTMENTS Upper knife A Fig 25 can be replaced by removing two screws B To replace lower knife the upper knife must be removed and rear suction tube cover Loosen two screws C and slide housing D towards the rear Remove screw A Fig 26 and lift up thread inlet B Unhook knife spring E Fig 25 and remove lower knife F Reassemble ...

Page 19: ...er knife as shown in Figure 25 If adjustment is required loosen screw K and reposition coupling J as required to obtain specified dimension SHEAR ANGLE Shear angle should be 003 inch 076mm measured at rear cutting edge of lower knife F Fig 25 and cutting dge of upper knife A Adjustment can be made by loosening nut A Fig 27 and turning screw B clockwise to increase the angle or counterclockwise to ...

Page 20: ...ottom cover Change oil oil which conforms to LF600 LF600 U S C spec 175 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 clutch positioner motor air passage...

Page 21: ...From the library of Superior Sewing Machine Supply LLC P 1 0 1 EXPLODED VIEWS AND DESCRIPTION OF PARTS 21 ...

Page 22: ...From the library of Superior Sewing Machine Supply LLC 12 t PtO 22 TORQUE TO __ 16 18 in lbs 18 21 cm kg 70 ...

Page 23: ... 1 Divider housing 1 O Ring 1 Spacer housing 1 Gerotor 1 8 inch 3 2mm thick 1 Housing syphon side 1 Collar positioning and thrust 1 Screw 2 Pin dowel 1 Shaft drive 1 Screw 1 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 tub...

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

Page 25: ...r bar bushing 1 Bushing presser bar 1 Plug cork 2 Plug oil 3 Plug oil 3 Bushing needle bar upper 1 Plug aluminum 1 Screw plug 1 Screen needle bar bushing 1 Shield needle bar bushing 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 presser foot lifter lever rear 1 Screw set 1 Screw locking 1 Bushing presse...

Page 26: ...From the library of Superior Sewing Machine Supply LLC 15 21 26 43 30 P104 42 26 ...

Page 27: ...t 1 Cover head left rear 1 Screw 9 Cover head right rear 1 Gasket 1 Screw 4 Cover top 1 Screw 2 Plug oil 2 Cap oil filler 1 Gasket 1 Gasket 1 Screw 10 Cover 1 Screw 9 Screw adaptor 1 Cover 1 Screw all Styles except LF611KlOOHM and lOOMW 2 Screw for Styles LF611KlOOHM and lOOMW 2 Throat Plate See SEWING COMBINATIONS 1 Screw 2 Ferrule locating 2 Screw 2 Support throat plate all Styles except LF611Kl...

Page 28: ...From the library of Superior Sewing Machine Supply LLC 6 P105 TORQUE TO 6 in 1bs 7 cm kg 15 TORQUE TO 16 18 in lbs 18 21 cm kg 28 28 30 8 1 37 36 ...

Page 29: ...30 D 50354 35042 C 53678 N 22585 C Description Amt Needle all Styles except LF611KlOOHM and lOOMW 1 Needle for Styles LF611KlOOHM and lOOMW 1 Head needle bar 1 Screw 1 Stud support 1 Screw 1 Bar needle 1 Eyelet needle bar 1 Screw 1 Screw 1 Fitting male barbed 1 Scotch Yoke Assembly all Styles except LF611KlOOHM 1 Scotch Yoke Assembly for Style LF611K100HM 1 Screw 1 Screw 1 Screw 1 Tube air 1 Plug ...

Page 30: ...From the library of Superior Sewing Machine Supply LLC 30 ...

Page 31: ... 2 Sprocket lower mainshaft right 1 Screw 2 O Ring 1 O Ring 1 Coupling lower mainshaft 1 Screw 2 Screw set 2 Housing lower mainshaft 1 Seal oil 1 Washer thrust 1 Screw retaining lower mainshaft housing 2 Washer spacer 1 Stud locating 1 Gear oil pump drive nylon 1 Screw set 1 Screw spot 1 Gear take up drive 1 Screw 2 Pump Assembly oil siphon 1 Clamp tube 1 Tube brass 1 Felt 1 Collar 1 Screw 2 Belt ...

Page 32: ...From the library of Superior Sewing Machine Supply LLC 6 16 22 t5 40 P107 32 ...

Page 33: ...57 F LOOPER THREAD CAST OFF AND DRIVING PARTS Description Amt Reg Screw 1 Washer 1 Spring latch 1 Bracket mounting 1 Screw 3 Plate Assembly cast off support 1 Screw 1 Bracket retaining finger support 1 Screw 1 S pport ret i ing finger 1 F1nger reta1n1ng 1 Screw 4 Eyelet 2 Washer 2 Strike off 1 Plate cast off support 1 Screw 1 Knife anti wrap up back 1 Knife anti wrap up front 1 Screw 2 Washer spri...

Page 34: ...From the library of Superior Sewing Machine Supply LLC 9 5 48 42 41 39 33 34 P108 34 ...

Page 35: ...Screw 1 Collar feed bar thrust 1 Screw set 2 O Ring 1 Screw set 2 Shaft rocker 1 Spacer rocker shaft 1 Rocker feed 1 Screw 1 Screw plug 1 Bushing rocker shaft 1 Eccentric double all Styles except LF611KlOOHM 1 Eccentric double for Style LF611K100HM 1 Screw 2 Fork Assembly driving 1 Stud eccentric 1 Feed Bar Assembly 1 Pad brake 1 Bushing stitch adjusting shaft 1 Washer cup 1 Screw 2 Shaft Assembly...

Page 36: ...From the library of Superior Sewing Machine Supply LLC 36 ...

Page 37: ...eedle thread tension 1 Screw 2 Needle Thread Control Assembly 1 Nut 1 Plate needle thread control 1 Spacer 1 Eyelet adjustable 1 Screw 1 Pin thread tension release 1 Post tension 2 Disc tension 4 Shield tension spring 2 Washer tension release 1 Ferrule tension post 2 Washer 2 Housing tension assembly 2 Pin tension release actuating 1 Screw 1 Screw 5 Gasket 5 Spring looper thread tension 1 Guide th...

Page 38: ...From the library of Superior Sewing Machine Supply LLC 11 10 9 r 2 3 p 11 0 38 ...

Page 39: ...ee SEWING COMBINATIONS 1 Bar presser 1 Screw 2 Plate presser bar guide 1 Guide presser bar 1 Screw 2 Nut lock 1 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 1 Screw 1 Shaft presser foot lift upper 1 Screw 2 Seal oil 1 Sleeve tension release 1 Screw 2 Collar tensio...

Page 40: ...From the library of Superior Sewing Machine Supply LLC 7 8 P 111 40 ...

Page 41: ...er 1 Bottom presser foot 1 Spring 2 Section yieldjng 1 Spring 2 Screw hinge 1 Throat Plate for Styles LF611Kl00MF and 112MF 1 Feed Dog for Styles LF611KlOOMF and 112MF 1 Presser Foot Assembly for Styles LF611KlOOMG and 112MG 1 Screw 1 Knife chain cutting 1 Shank presser foot 1 Screw 1 Bottom presser foot 1 Spring 1 Section yielding 1 Throat Plate for Styles LF611KlOOMG and 112MG 1 Feed Dog for Sty...

Page 42: ...From the library of Superior Sewing Machine Supply LLC p 1 1 2 42 LF611K100HM STYLE 24 33 43 ...

Page 43: ...regulating 1 Yoke 1 Screw 1 Screw 1 Screw 1 Link presser foot 1 Bushing 1 Bottom presser foot 1 Screw 1 Screw 1 Spring tilting 1 Pin hinge 1 Screw connection 1 Screw hinge 1 Throat Plate for Style LF611KlOOMAW 1 Feed Dog for Style LF611K100MAW 1 Presser Foot Complete for Style LF611KlOOHM 1 Shank presser foot 1 Screw clamp 1 Nut lock 1 Screw adjusting 1 Bottom presser foot 1 Screw hinge 1 Throat P...

Page 44: ...From the library of Superior Sewing Machine Supply LLC 4 50 7 _______ _ p 113 44 ...

Page 45: ...6 BA 671 H 4C 660 206 671 H lA 660 753 671 H lF 671 H lD 671 H 2A 671 H 4A 660 400 99675 G 1000 999 126 G 999 140 C Amt Description Reg Cover suction tube 1 Screw 3 Screw 4 Plate cloth left 1 Bracket 1 Screw 2 Inlet thread 1 Screw 1 Screw 1 Cover plate 1 Gasket 1 Screw 6 Power Air Klipp Assembly complete 1 Cover 1 Screw adjusting 1 Spring 1 Lever knife 1 Nut 1 Block sliding 1 Housing chain cutter ...

Page 46: ...From the library of Superior Sewing Machine Supply LLC 31 p 1 14 46 ...

Page 47: ...71 F SC 191 671 90 Description Amt Reg Screw wood 2 Bracket mounting 1 Screw 2 Tube discharge 1 Venturi 1 Tube suction 1 Tube venturi air supply 1 Holder venturi 1 Screw wood 2 Pneumatic Control Board Assembly 1 Connector 1 Filter air line 1 Regulator pressure 3 Fitting reducer 1 Screw 1 Washer fiber 1 Coupling Body 3 Control Board 1 Fitting elbow 90 degree 1 Fitting barb 2 Gauge pressure 1 Fittin...

Page 48: ...From the library of Superior Sewing Machine Supply LLC 2 6 v 25 24 21 7 e 20 14 9 18 13 9 12 11 10 PI I 5 48 ...

Page 49: ...8 21169 E 28604 R THREAD STAND AND ACCESSORIES Description Amt Reg Thread Stand Assembly 1 Nut 1 Washer 3 Bolt 3 Isolator 4 Support 2 Cradle machine 1 Support 1 Washer 16 Bolt 5 Nut 9 Washer 4 Rod threaded 3 Nut 3 Rod 4 Nut 8 Chain presser foot lift 1 Rod threaded 1 Bracket motor mounting 1 Hook S 2 Tweezer thread 1 Stand machine 4 Screwdriver 1 Base binding holder for Style LF611KlOOHM 1 Screw fo...

Page 50: ...31 660 980 35 660 986 33 39 660 998 31 661 26 37 661 35 35 661 50 35 661 51 23 666 214 31 666 310 23 666 311 25 667 J 33 31 667 M 14 39 668 885 23 670 E 2 23 671 90 47 671 91 47 671 B 3 47 671 B 11 47 671 B 12 47 671 D 2 47 671 D 5 47 671 D 10 47 671 D 29 47 671 D 30 47 671 F 3 47 671 F 4 47 671 F 41 23 671 F 67 47 671 F 68 47 671 F 69 47 671 G 3 47 671 H lA 45 671 H 1D 45 50 Part No Page No 671 H...

Page 51: ...2788 H 49 22792 A 37 22797 B 33 22798 33 22799 B 41 22799 E 43 22799 G 41 43 22799 AH 27 37 22830 31 22835 47 22839 27 22840 A 43 22840 c 39 22841 M 23 49 22841 N 27 22861 c 21 22882 39 22883 B 27 22894 c 23 25 29 31 33 35 43 22894 D 27 33 22894 J 23 27 35 22894 K 31 22894 L 39 22894 P 39 22894 R 47 22894 w 39 22894 x 29 31 22894 AB 35 22894 AD 29 31 22894 AE 31 23215 BG 5 8 43 23215 BG 3 4 43 232...

Page 52: ...50093 CN 25 C50093 CT 25 C50094 8 23 C50094 C 23 C50094 R 23 C50094 X 29 C50094 Y 23 C50094 AK 23 C50095 D 27 C50095 E 27 C50095 F 27 C50095 G 27 C50096 43 C50096 A 43 C50096 C 43 50301 27 50301 A 27 50301 8 27 50301 R 27 50301 T 45 50304 A 33 50313 31 50314 31 50314 A 31 50322 8 39 50322 c 39 50322 K 35 50322 AA 31 50323 33 50323 A 33 50323 8 33 50323 c 33 50323 D 33 50324 41 50325 31 50332 33 50...

Page 53: ...4 K 23 50394 L 23 50394 s 25 50396 43 51205 w 41 51208 31 51220 w 41 51230 F 41 51230 6 41 51280 K 27 51292 A 37 51292 F 1 37 51292 F 4 37 51305 w 41 651320 41 C51324 W 41 51330 w 41 51330 A6 41 51330 AH 41 51330 AJ 41 651409 c 31 51430 F 41 43 51858 37 51909 c 31 52804 E 33 52904 E 33 52930 AC 41 43 52958 D 33 53678 N 29 33 54274 P 33 C56224 A 41 56305 c 43 56320 E 43 56320 H 41 C56324 C 43 56330...

Page 54: ...From the library of Superior Sewing Machine Supply LLC MACHINE INVENTORY INFORMATION Unit Maker s Name Machine Serial Number Neodle Type Dote Of Number Style Purchase ADDITIONAL INFORMATION ...

Page 55: ...From the library of Superior Sewing Machine Supply LLC Notes _ ________________ _ _ ...

Page 56: ...entative to serve you Check with him 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 Gainesville GA Norcross GA Chicago IL Dallas TX Commerce CA Philadelphia PA Opa locka FL Montreal Quebec Toronto Ontario Brussels Belgium Leicester England Paris...