From the library of: Superior Sewing Machine & Supply LLC
Страница 1: ...k 5483 5483 H Service Manual Pfaff D 6750 Kaiserslautem Postfach 3020 3040 Telefon 0831 200 0 Telex 45753 Telefax 0631 17202 From the library of Superior Sewing Machine Supply LLC...
Страница 2: ...and for machines in version H and with 911 backtacking mechanism in the Appendices on pages 40 and 44 respectively The machine version is indicated on the model plate on the arm standard Tools gauges...
Страница 3: ...plate Note This machine Isequipped with a bearing plate with four holes InIt Fig 1 0 1 By Inserting a pin In one of these holes and pushing It Into a recess behind the bearing plate the machine can b...
Страница 4: ...dle bar to top dead center and remove the presser foot 2 2 insert a new needle for needle system see Inside front cover and push It up Into the needle bar as far as It will go the long groove must fac...
Страница 5: ...crew 3 Just lightly and screw 4 securely 2 8 Using screw 1 pull the guide stud behind it against the eye of needle bar frame 2 Then tighten screw 1 2 9 Loosen screw 3 again turn the balance wheel a fe...
Страница 6: ...e 12 5 mm 3 0 3 3 1 Bring the needle bar to top dead center 3 2 Insert the pin In hole 1 of the bearing plate to block the machine 3 3 Loosen clamp screw 1 see Fig 3 0 1 in the needle bar connecting s...
Страница 7: ...1 5 Place a 22 mm open ended spanner on hexagon tension nut 6 and use It to hold feed regulating shaft 7 fast 4 1 6 Rotate the balance wheel and simultaneously turn nut 6 on its shaft untii the feed d...
Страница 8: ...sufficiently to allow crank 10 to be turned on its shaft 4 2 5 In order to show the absence of feed motion more clearly insert a screwdriver in the slot of feed driving crank 5 4 2 6 Rotate the balan...
Страница 9: ...driving crank 5 Fig 4 0 2 4 3 7 Place a 22 mm socket wrench on hexagon tension nut 6 and use It to hold feed regulating shaft 7 fast 6 3 8 Loosen clamp screw 3 of feed regulation crank 4 4 3 9 Rotate...
Страница 10: ...the 16 screws of the gearcase cover and take off the cover with its gasket making sure that oil which may be running out is caught Remove the lubrication pad from the gearcase Loosen clamp screw 9 ju...
Страница 11: ...e pin in hole 4 of the bearing plate to block the machine 5 5 Set the machine for its longest stitch 5 6 In order to show the absence of feed motion more clearly insert a screwdriver in the slot of fe...
Страница 12: ...1 of feed lifting eccentric 2 Turn the balance wheel to bring the needle bar to top dead center insert the pin in hole 1 of the bearing plate to block the machine Turn feed lifting eccentric 2 so that...
Страница 13: ...Unscrew the presser foot 7 6 Place adjustment gauge No 61 111642 19 or 08 880179 00 on the needle plate so that its recess is centered above the feed slots and the arrow on the gauge points in feed d...
Страница 14: ...ol is fully pressed the stitch length must be 1 5 mm VW mum Q 8 0 1 8 1 Set the stitch length at 1 5 8 2 Turn stop crank 1 until it contacts the bedplate and tighten clamp screw 2 in this position 8 3...
Страница 15: ...oth screws 1 Fig 9 0 1 of avoiding motion eccentric 2 Turn the balance wheel to bring the needle bar to top dead center Insert the pin in hole 1 of the bearing plate to block the machine Turn avoiding...
Страница 16: ...n of the needle bar 10 3 Turn the balance wheel in the opposite direction until the C clamp contacts the needle bar frame again 10 4 in this position the looper point should again be at the right hand...
Страница 17: ...bed slide cover plate needle plate and feed dog 11 2 Place the needle plate In position again and operate the presser bar lifter to lower the presser foot onto the needle plate 11 3 Turn balance wheel...
Страница 18: ...t the looper blade roughly parallel to the front edge of the bedplate pre liminary adjustment and tighten clamp screw 4 11 7 5 Replace the needle plate and operate the presser bar lifter to lower the...
Страница 19: ...loosen clamp screw 1 Fig 11 0 1 of looper holder 2 12 3 Turn the balance wheel to move looper holder 2 to Its vertical position 12 4 Place adjustment gauge No 61 111843 06 against the left edge of th...
Страница 20: ...nce wheel until the point of the advancing looper Is in line with the left side of the needle Slightly loosen both screws 1 Fig 13 0 1 of looper assembly 2 Adjust the position of the looper assembly s...
Страница 21: ...14 2 Loosen clamp screw 1 in looper holder 2 14 3 Place the 3 2 mm blade or 3 6 mm blade on version HO machines of gauge No 91 111643 06 against the needle with its notch facing in the direction of fe...
Страница 22: ...of the advancing looper is in line with the left side of the needle Inthis position loosen both clamp screws 1 Fig 15 0 1 in needle bar connecting stud 2 Move needle bar 3 up or down until there Is a...
Страница 23: ...16 1 Turn the balance wheel to bring the needle bar to bottom dead center 16 2 Insert the pin in hole 3 of the bearing plate to block the machine 16 3 Loosen screw 1 of rear needle guard 2 16 4 Adjust...
Страница 24: ...n line with the right side of the needle see Fig 17 0 2 a 0 17 0 1 17 0 2 Turn the balance wheel until the point of the advancing looper is in line with the right side of the needle Loosen screw 1 of...
Страница 25: ...p edge of the needle bar frame see Fig 18 0 2 18 0 2 18 0 1 Turn the balance wheel until clamp screw 1 in take up lever 2 Is accessible Loosen clamp screw 1 a little Turn the balance wheel to bring th...
Страница 26: ...fied depending on the type of thread and material used 19 0 1 Turn the balance wheel to bring the needle bar to bottom dead center Loosen the screw see arrow in Fig 19 0 1 of needle thread regulator 1...
Страница 27: ...may have to be modified depending on the type of thread and the stitch length used 20 0 1 20 1 Loosen screw 1 of thread guide 2 20 2 Adjust thread guide 2 so that screw 1 is positioned in the middle o...
Страница 28: ...sen both screws 1 of thread regulator 2 21 2 Adjust thread regulator 2 lengthwise so that there is a distance of 29 mm between its front edge and the rear edge of the needle plate cutout 21 3 Make sur...
Страница 29: ...thread regulator 3 Fig 22 0 2 22 0 2 s 8 ni ni y 5 22 0 1 22 1 Loosen screw 1 of secondary looper thread regulator 2 22 2 Adjustthread regulator2 lengthwiseso that Its frontedge is 8 0mmfrom the front...
Страница 30: ...stud by hand Turn the balance wheel to bringthe needle bar to top dead center Insertthe pin in hole1 of the bearing plate to block the machine llirn thread puller 2 on its stud so that Its two eyes a...
Страница 31: ...gauge under the presser foot from the rear until It Is positioned under the presser foot fulcrum see Fig 24 0 3 24 5 Loosen clamp screw 3 of presser bar lifting bracket 4 and raise presser bar lifter1...
Страница 32: ...knee lever connecting rod 1 together with coupling sleeve 2 onto knee lever shaft 3 and turn it until it snaps into position 25 3 Loosen locknut 4 of stop screw 5 25 4 Turn stop screw 5 until knee le...
Страница 33: ...Take out the two screws of the rear standard cover and remove the latter 26 3 Loosen both clamp screws 3 of crank 4 on the knee lever shaft 26 4 Adjust crank 4 so that there is a clearance of about 1...
Страница 34: ...ot by means of the presser bar lifter 27 5 Place the 7 mm or 9 mm thlck blade of the gauge under the presser foot and release the presser bar lifter 27 6 Move the knee lever to the right until a notic...
Страница 35: ...uard 2 during any phase of its motion 28 0 1 Loosen both screws 1 which are accessible through the access window Adjust the position of guard 2 so that looper avoiding motion eccentric 3 does not touc...
Страница 36: ...er by about 5 mm thread tension 4 must be released 29 0 2 29 0 1 Loosen clamp screw 1 of tension release lever 2 Raise the presser foot by about 5 mm and adjust the position of tension release bracket...
Страница 37: ...the balance wheel until the point of the advancing looper Is opposite the center line of the needle 30 1 2 Loosen both screws 1 of needle guard bracket 2 30 1 3 Adjust front needle guard 3 vertically...
Страница 38: ...bracket 3 so that front needle guard 2 does not touch the neck of the looper when the latter Is at Its left point of reversal 30 2 4 In this position tighten clamp screw 1 just lightly 30 2 5 Turn th...
Страница 39: ...elow Tighten screws 1 and 2 On machines with feed regulator lever Loosen screw 6 through the access hole I e remove It If the limitation setting so requires Se required stitch length maximum on regula...
Страница 40: ...down In Its elongated holes as far as It will go 32 3 Turn knurled nut 3 until Its face side Is flush with the end of the threaded stud 32 4 Swing presser bar lifter 1 down until the entire sole of fl...
Страница 41: ...ver screws crosswise Replace and screw on the face plate the rear housing cover with thread tension and the belt guard Thread the machine Replace the bed slide and the cover plate Place fabric under t...
Страница 42: ...t vertically downwards see arrow in Fig 34 0 2 34 0 1 Loosen screws 1 Fig 34 0 1 of feed lifting eccentric 2 Turn the balance wheel to bring the needle bar to a position 0 8 mm before top dead centre...
Страница 43: ...auge No 61 111642 19 or 08 880179 00 on the needle plate so that its recess is centered above the feed slots and the arrow of the gauge points in feed direction see Rg 35 0 2 35 8 Lower the presser fo...
Страница 44: ...eccentric 2 36 2 Turn the balance wheel to bringthe needle bar to a position 0 8 mm before top dead centre 36 3 Insert the pin in hole 4 of the bearing plate to block the machine 36 4 Turn avoiding mo...
Страница 45: ...w 1 and screw 2 37 7 If the clearance of 3 2 mm cannot be obtained proceed as follows 37 7 1 Raise the presser foot and remove the needle plate 37 7 2 Loosen clamp screw 4 in looper holder 5 and take...
Страница 46: ...11 The following contains differing adjustment procedures for machines fitted with backtacking mechanism 911 Aii other adjustments can be found in the preceding sections of this Service Manual 44 From...
Страница 47: ...balance wheel to bring the needle bar to a position 0 8 mm before top dead center 38 3 insert the pin in hole 4 of the bearing plate to block the machine 38 4 Turn feed lifting eccentric 2 so that it...
Страница 48: ...ce adjustment gauge No 61 111642 19 or 08 880179 00 on the needle plate so that its recess is centered above the feed slots and the arrow of the gauge points in feed direction 39 8 Lower the presser f...
Страница 49: ...ion eccentric 2 40 2 Turn the balance wheel to bring the needle bar to a position 0 8 mm before top dead center 40 3 Insert the pin in hole 4 of the bearing plate to block the machine 40 4 Tum avoidin...
Страница 50: ...eedle plate In this position tighten clamp screw 1 and screw 2 Ifa clearance of 3 2 mm cannot be obtained proceed as follows Raise the presser foot and remove the needle plate Loosen clamp screw 4 In...
Страница 51: ...42 0 1 Loosen screw 1 Also loosen the three screws 2 and retlghten them a little Adjust the position of the backtacking mechanism with the aid of a ruier so that its face side is exactiy paraiiei to...
Страница 52: ...e turned 43 3 Bring the needle bar to bottom dead center 43 4 Insert the pin in hole 3 of the bearing plate to block the machine 43 5 Turn eccentric shaft 4 so that spreader link5 is at its rear point...
Страница 53: ...nderside of the spreader 2 44 0 1 44 0 2 Turn the balance wheel until the tip of spreader 11s exactly above the looper Take out screw 2 of spreader holder 3 and remove spreader 1 with the spacer Inser...
Страница 54: ...its return stroke and the needle point is In line with the back of the looper see Fig 45 0 3 45 1 2 Loosen screws 1 and 2 just a little 45 1 3 Turn eccentric stud 3 so that its lobe points in sewing...
Страница 55: ...ress the reverse feed control turn the balance wheel In sewing direction and watch spreader 4 45 2 3 The spreader should reliably pick up the rear leg of the needle thread loop and the looper thread o...
Страница 56: ...line with the right side of the needle 0 2 Turn the balance wheel untilthe point of the advancing looper IsInlinewiththe right side of the needle Loosen screw 1 of rear needle guard 2 Turn bracket 3 s...
Страница 57: ...ottom dead center 47 2 Insert the pin In hole 3 of the bearing plate to block the machine 47 3 Loosen screw 1 of rear needle guard 2 47 4 Adjust needle guard 2 so that Its vertical surface covers roug...
Страница 58: ...ches must be equally long 48 0 1 48 0 2 Set stitch length at 3 Loosen screw 1 Making sure that the eccentricity of bush 2 points downwards turn it so that forward and reverse stitches are equally long...
Страница 59: ...Secondary looper thread regulator 27 23 Looper thread puller 28 24 Clearance between presser foot and needle plate 29 25 Knee lever rest position 30 28 Knee lever play 31 27 Knee lever stroke limitati...
Страница 60: ...dHE cAV Nr 296 12 13864 Printed in West Germany Rohr 5 87 From the library of Superior Sewing Machine Supply LLC...
