Instruction Manual
296-12-18 395/002Betriebsanleitung engl. 04.98
421E1
1421E1
This instruction manual applies to machines from the
following serial numbers onwards:
PFAFF
421 E1
# 2546845
PFAFF 1421 E1
# 2541850
Page 1: ...ruction Manual 296 12 18 395 002 Betriebsanleitung engl 04 98 421E1 1421E1 This instruction manual applies to machines from the following serial numbers onwards PFAFF 421 E1 2546845 PFAFF 1421 E1 2541...
Page 2: ...orisation and with written reference to the source G M PFAFF KAISERSLAUTERN INDUSTRIEMASCHINEN AG Postfach 3020 D 67653 Kaiserslautern K nigstr 154 D 67655 Kaiserslautern Editing Illustrations HAAS Pu...
Page 3: ...5 1 5 02 Transport within the customer s premises 5 1 5 03 Disposal of the packaging 5 1 5 04 Storage 5 1 6 Explanation of the symbols 6 1 7 Controls 7 1 7 01 On off switch 7 1 7 02 Keys on the machi...
Page 4: ...1 1 11 01 Symbols in the status bar 11 1 11 02 Symbols in the text and graphic fields 11 2 11 03 Symbols in the pictogram bar 11 3 11 04 Summary of the functions in SEWING mode 11 4 11 05 Summary of t...
Page 5: ...10 Bobbin case opener position 13 13 13 04 11 Feed wheel 13 14 13 04 12 Clearance between roller presser and feed wheel 13 15 13 04 13 Roller presser 13 16 13 04 14 Automatic presser foot lifter 13 1...
Page 6: ...wing tools e g needle roller presser needle plate or bobbin when threading the machine when leaving the machine unattended and during maintenance work the machine is to be separated from the power sup...
Page 7: ...onnel is to be instructed as to the safety equipment of the machine and regarding safe work methods It is the duty of the user to only operate the machine in perfect running order It is the obligation...
Page 8: ...immediately report to the person responsible any changes in the machine which may limit its safety 1 05 02 Specialist personnel Specialist personnel are persons with a specialist education in the fie...
Page 9: ...or in the needle plate area while adjusting the machine settings Objects can become trapped or be slung away Danger of injury 1 4 Do not operate the machine without the take up lever guard 1 Danger o...
Page 10: ...oller presser and large sewing hook These machines are used for sewing lockstitch seams in the leather and upholstery industries Any and all uses of this machine which have not been approved of by the...
Page 11: ...240 mm Height above table approx 320 mm Bedplate 518 x 177 mm Max speed 4000 Sti min Electrical data Operating voltage 230 V 10 50 60 Hz Max output 1 2 kVA Fuse protection 1 x 16 A delayed action Sof...
Page 12: ...d PFAFF 1421E1 Model needle system Thread thickness Nm max synthetic Needle thickness in 1 100 mm B 40 40 100 134 35 B C 20 30 120 134 35 or comparable thicknesses of other thread types or comparable...
Page 13: ...d various plastics The electrical equipment consists of plastics and copper The machine is to be disposed of in accordance with the locally valid environmental protection regulations If necessary a sp...
Page 14: ...ity for transport within the customer s premises Always ensure that the machine is only transported upright 5 03 Disposal of the packaging The packaging of the machines consists of paper cardboard and...
Page 15: ...s Instruction Manual certain tasks or important pieces of information are accentuated by symbols The symbols used have the following meanings Note information Cleaning care Lubrication greasing Servic...
Page 16: ...off by turning On Off switch 1 Fig 7 02 7 02 Keys on the machine head Different functions are triggered by pressing the different keys Key 1 reverse sewing Key 2 sews one stitch with half stitch lengt...
Page 17: ...ise roller presser Other pedal functions can also be programmed see chapter 11 Programming Fig 7 03 0 1 2 3 7 04 Knee switch By activating the knee switch 1 the end of the seam segment can be signaliz...
Page 18: ...Knee lever The roller presser is raised by pressing the knee lever 1 in the direction of the arrow 1 Fig 7 05 7 06 Lever for lifting the roller presser The roller presser is raised by turning lever 1...
Page 19: ...splayed in 2 lines Stylized seam sections can also be shown here with information about start and end bartacks sewing direction and seam section end Pictogram bar The pictogram bar can be found at the...
Page 20: ...ate menu functions for error acknowledgement after an error message Clear key for returning the input value to 0 for error acknowledgement after an error message Enter key for confirming an input valu...
Page 21: ...r even while sewing 8 01 Mounting The necessary electricity supply must be available at the machine s location There must be a stable and horizontal surface and adequate lighting at the machine s loca...
Page 22: ...2 1 2 cm Fig 8 02 3 4 2 1 8 01 03 Adjusting the V belt tension Loosen nuts 1 Tighten the V belt with belt take up hanger 2 Tighten nuts 1 8 01 02 Fitting the tilt lock Screw on tilt lock parts 1 and...
Page 23: ...unting the upper V belt guard Screw position stop 1 onto the right half of V belt guard 2 Attach both halves 2 and 3 of the belt guard with screws 4 8 01 05 Mounting the lower V belt guard Align belt...
Page 24: ...y Plug the synchronizer plug into the electrical socket of the control box Adjust the synchronizer see chapter 13 04 01 Adjusting the synchronizer Fig 8 07 Fig 8 06 2 1 8 01 07 Mounting the spool hold...
Page 25: ...roughly and oil it fill with oil see chapter 12 Care and maintenance Have specialists ensure that the machine s motor can be operated with the available electricity supply and that it is connected cor...
Page 26: ...off the On Off switch 9 01 Inserting the needle Turn the machine off PFAFF 421E1 Only use needles of system 134 PFAFF 1421E1 Only use needles of system 134 35 Raise roller presser 1 Pull roller press...
Page 27: ...bbin 1 a few times Switch on the bobbin winder by pressing the bobbin winder spindle 2 and lever 3 at the same time The bobbin fills up while you are sewing The tension of the thread on bobbin 1 can b...
Page 28: ...just the thread tension by turning screw 3 When the thread is pulled the bobbin must rotate in the direction of the arrow 2 3 1 5 c m Fig 9 03 Fig 9 04 1 2 9 03 Removing Inserting the bobbin case Remo...
Page 29: ...ion 9 4 9 05 Threading the needle thread Adjusting the needle thread tension Turn the machine off Thread the machine as shown in Fig 9 05 Adjust the needle thread tension by turning knurled screw 1 Fi...
Page 30: ...9 07 Using the number keys input the desired stitch lengths The value inputted will also be taken on by the feed wheel and the roller presser If the values for the feed wheel and the roller presser ar...
Page 31: ...menu with number key 0 Select the function SWITCH FUNCTIONS with number key 1 Select the function LANGUAGES with number key 3 Select the desired language with the number keys 1 D 2 GB 3 F 4 I 5 E 6 P...
Page 32: ...e the thread is cut when the pedal is pressed backwards Needle position When this function is active the machine positions the needle at its top position when stopping When this function is deactivate...
Page 33: ...am sections which you can switch between with the knee switch They are designed as rotary programs and are completed by activating the pedal see chapter 10 04 Decorative seams Turn the machine on Swit...
Page 34: ...stop When this function is active the roller presser is raised when the machine is stopped Roller presser down after trimming When this function is active the roller presser is lowered after the trimm...
Page 35: ...rrupts the sewing of the seam program see chapter 10 05 Program interruption Needle up By activating this function the machine runs until the needle is at its top position when stopping without thread...
Page 36: ...dal is brought backwards to the 2nd position pedal position 3 in chapter 7 03 Pedal There is an example for programming decorative seams in chapter 11 14 02 Example for programming a decorative seam 1...
Page 37: ...nformation on correcting errors can be found in the corresponding service handbook Errors may only be corrected by authorized specialists Enter ERROR 3 PROGRAM NUMBER INVALID PROGRAM NUMBER OR PROGRAM...
Page 38: ...ained in the current seam program is displayed behind this symbol Only on the PFAFF 1421E1 with Doku seam system Doku seam section The assesment of the seam is made after this symbol The Doku seam sys...
Page 39: ...number of the current seam section is shown behind the symbol e g 1 Single start bartack Double start bartack Seam Single end bartack Double end bartack Placed stitch The symbols in the text line sho...
Page 40: ...the symbols in the display Programming This function opens a direct menu for programming seams The program is inputted using the control panel Teach In This function opens a direct menu for programmi...
Page 41: ...mming bartack suppression start bartack end bartack stitch length program interruption switch to manual SEWING needle up program selection needle position rollerpresserupafterstop thread trimming roll...
Page 42: ...1 08 seechapter 11 07 seechapter 11 06 reverse sewing Placed stitch 1 PLACED STITCH ON OFF 2 PLACED STITCH POSITION stitch counter pedal knee switch Sensor stop needle position Doku seamsection onlyon...
Page 43: ...T BARTACK PEDAL DEPENDENT 4 STITCHES REVERSE 4 STITCHES REVERSE 2 SPEED 3 STITCHES FORWARDS 2 SPEED 4 STITCHES REVERSE reverse sewing speed 4 STITCHES REVERSE 2 SPEED 3 STITCHES FORWARDS 1 START BARTA...
Page 44: ...menu 1 SWITCH FUNCTIONS 11 08 Summary of the functions in the input menu 2 BARTACK S 4 SPEEDS 1 MAXIMUM SPEED 2 START BARTACK SPEED 3 END BARTACK SPEED 4 SOFT START SPEED 5 SERVICE See chapter 11 09 S...
Page 45: ...ONIZER 2 ADJUST POSITIONS 1 ONE FEED 1 ONE FEED 1 ONE FEED 2 CONTINUOUS FEED 2 CONTINUOUS FEED 2 CONTINUOUS FEED 1 ONE FEED 2 CONTINUOUS FEED 5 SERVICE 6 CONTROL PANEL BRIGHTNESS 2 POS UP 1 POS DOWN 3...
Page 46: ...ollowing display appears 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Fig 11 06 1 STEPPING MOTORS 2 SEWING MOTOR 3 COLD START 4 SOFTWARE VERSION 5 STITCH WITH HANDWHEEL Select the function SEWING MOTOR with nu...
Page 47: ...ction input menu 4 SPEEDS 5 SERVICE 1 STEPPING MOTORS 2 SEWING MOTOR 3 COLD START 4 SOFTWARE VERSION 5 STITCH WITH HANDWHEEL 6 CONTROL PANEL BRIGHTNESS 1 ADJUST SYNCHRONIZER 1 SWITCH FUNCTIONS 3 COUNT...
Page 48: ...s The fixed programs can be altered via the functions stitch length and seam section selection 11 11 Creating seam programs 11 11 01 Altering fixed programs Select INPUT mode The initial INPUT display...
Page 49: ...LE 1 99 9 9 3 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Enter Fig 11 14 A comment of up to 14 characters can be entered The characters in the display can be scrolled through with the arrow keys Select a cha...
Page 50: ...m is sewn backwards in the current seam section Bartack menu This function opens a direct menu for inputting bartack functions see chapter 11 12 Bartack menu Placed stitch This function opens a direct...
Page 51: ...try with the Enter key The menu for inputting a comment appears Fig 11 16 Fig 11 17 PROGRAM NUMBER 3 PERMISSIBLE 1 99 9 9 3 to 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Enter Fig 11 18 A comment of up to 14...
Page 52: ...Press the pedal The machine switches automatically to manual SEWING Sew the seam manually The end of the seam section can be determined after the first standstill of the machine 1 2 3 4 5 6 7 9 0 Ente...
Page 53: ...tion on or off A double click of this key opens the menu for inputting the bartack parameters Single end bartack Pressing this key once turns the function on or off A double click of this key opens th...
Page 54: ...PLACED STITCH OFF 1 ON 0 OFF Select the placed stitch function Enter 1 2 Select placed stitch function to set the position of the placed stitch Before the placed stitch can be set a stitch must first...
Page 55: ...the number of stitches Pressing the key once again opens the menu for inputting the number of stitches Pressing the key a third time switches the function off again Pedal When this function is active...
Page 56: ...am The program data entered is checked 11 15 Programming examples The following display representations are only accurate if no program has been inputted previously 11 15 01 Example of seam programmin...
Page 57: ...ss the arrow key pointing to the left Display Fig 11 28 appears again Select letter A Complete the comment in this way Confirm the entry with the Enter key 4 1 Enter 1 NO OF STITCHES 0 Program the fir...
Page 58: ...ISSIBLE 1 15 Enter the number of stitches 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Fig 11 34 STITCHES FORWARDS 2 STITCHES PERMISSIBLE 1 15 2 Confirm this input with the Enter key Enter 1 2 3 4 5 6 7 9 0 En...
Page 59: ...number key 4 Enter 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Fig 11 35 ROLLER PRESSER 3 0 MM FEED WHEEL 3 0 MM VALID 0 8 MM 5 0 MM DIFF 1 MM This is entered for both stitch lengths If varying values are to...
Page 60: ...ig 11 39 NO OF STITCHES 0 STITCHES PERMISSIBLE 1 999 Enter the desired number of stitches Confirm this entry with the Enter key 5 Enter Close the seam section end menu with the Enter key Switch off th...
Page 61: ...6 7 9 0 Enter 8 Esc Clear Fig 11 42 ROLLER PRESSER 3 5 MM FEED WHEEL 3 5 MM VALID 0 8 MM 5 0 MM DIFF 1 MM Input the value for the stitch lengths Confirm the entry with the Enter key 2 NO OF STITCHES...
Page 62: ...machine jumps to the third seam section 3 NO OF STITCHES 0 Program the third seam section so that the stitch length is 5 0 mm a stitch count is carried out 1 stitch and the seam is sewn in reverse Se...
Page 63: ...eam section the stitch length should be 5 0 mm and a stitch count should be carried out 1 stitch Select the seam section end function number key 9 Select the stitch counter function number key 1 Enter...
Page 64: ...key 3 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Fig 11 52 2 SPEED 1500 3 STITCHES FORWARDS 03 4 STITCHES REVERSE 03 Select the STITCHES FORWARDS function Enter the number of stitches Confirm the input by p...
Page 65: ...OF STITCHES1 Select the stitch length function number key 4 Enter the value for the stitch length Confirm this entry by pressing the Enter key Select the seam section end function number key 9 If the...
Page 66: ...6 Select INPUT mode Select the programming function Enter the program number Confirm this entry with the Enter key Enter comment see chapter 11 15 01 Example for programming a seam Confirm with the E...
Page 67: ...ches e g 5 Confirm the entry with the Enter key Confirm the seam section end by pressing the Enter key Switch off the program end function number key 0 Confirm the first seam section by pressing the E...
Page 68: ...by pressing the Enter key Program the third seam section This seam section should have stitch counting 1 stitch and a stitch length of 5 mm Select the seam section end function number key 9 Select the...
Page 69: ...onfirm the seam section end by pressing the Enter key Select the stitch length function number key 4 Enter the stitch length Confirm with the Enter key Select the program end function number key 0 Con...
Page 70: ...n should have the knee switch function seam section end and a stitch length of 2 8 mm Select the stitch length function number key 1 Enter the stitch length Confirm with the Enter key Sew the first se...
Page 71: ...second seam section manually The number of stitches is counted and displayed in the status bar After stopping the machine skips automatically to inputting the seam section end Switch on the knee switc...
Page 72: ...he pedal backwards into the 2nd position The roller presser up after stop function is activated automatically Switch on the thread trimmer function number key 4 Select the program end function number...
Page 73: ...g Clean the hook and hook compartment daily more often if in continuous operation Turn the machine off Bring the needle bar to its highest position Open the bed plate slide and remove the bobbin case...
Page 74: ...ears Turn the machine off The bevel gears of the hook drive are to be greased once a year Lay the machine head backwards onto its support Unscrew the cover of the bevel gear case Brush a little grease...
Page 75: ...urn the machine off The filter grate 1 must be cleaned at least once a week or more depending on the cleanliness of the air Dust which collects on the filter grate 1 is to be removed with a brush Neve...
Page 76: ...d nuts in brackets are attachments of machine parts which are to be loosened before making the adjustment and tightened again when the adjustment is complete 13 02 Tools gauges and other accessories f...
Page 77: ...e descending in sewing direction is at the top edge of the needle plate the reference point must be at 0 Fig 13 01 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear REFERENCE 0 180 180 90 90 Switch the machine on a...
Page 78: ...ending needle is at the top edge of the needle plate With the needle in this position turn synchronizer 2 until the cursor in the display is at 0 Tighten screws 1 For other positioning options see the...
Page 79: ...ect SERVICE Select CONFIGURATION Press number keys to set the configuration according to Requirement 5 7 Number Machine configuration 0 1471E1 1474E1 1491E1 and 1493E1 1 1471E1 1474E1 1491E1 and 1493E...
Page 80: ...in its direction of rotation until the needle is in the needle hole Check the requirement by turning the single start bartack on and back off again Turn the machine off For the adjustment loosen screw...
Page 81: ...the middle of the needle hole as viewed across the direction of sewing 13 6 4 4 Fig 13 03 2 3 1 Move needle bar frame 1 screws 2 and 4 and nut 3 in accordance with the requirement Screws 4 are access...
Page 82: ...edge of the mounting hole when the needle is at both the front and rear points of reversal 1 4 2 3 1 1 4 Turn the machine on and set the stitch length at 5 Check the requirement by turning the single...
Page 83: ...edle height Requirement With the needle bar at TDC there must be approx 22 mm between the point of the needle and the needle plate 13 8 1 2 Fig 13 05 Move the needle bar 1 screw 2 in accordance with t...
Page 84: ...0 mm beneath the hook point and 3 the needle guard 4 must lightly touch the needle Turn the machine on Set the stitch length to 0 8 and sew four to five stitches without trimming Turn the machine off...
Page 85: ...and place under pressure Position the hook point at the middle of the needle and tighten screws 5 Set the needle height in accordance with requirement 2 Remove the adjustment pin from hole 6 Align ne...
Page 86: ...uirement With the needle bar at TDC the largest eccentricity of the balancing weight 1 must be facing downwards 13 11 Bring the needle bar to TDC Turn the balancing weight 1 in accordance with the req...
Page 87: ...front edges of retaining spring 3 and retaining lug 6 must be flush 13 12 Bring the needle bar to BDC Turn eccentric 1 screws 2 in accordance with requirement 1 Move retaining spring 3 screw 4 in acc...
Page 88: ...ust be the width of one thread apart Loosen screw 1 Adjust the bobbin case height in accordance with requirement 1 by moving bobbin case opener 2 Bring the fixing collar to rest on bobbin case opener...
Page 89: ...needle plate by the height of the teeth approx 0 8 mm and 2 be in the middle of the needle plate cutout 13 14 1 2 3 1 0 8 mm Fig 13 10 Adjust the height of the feed wheel 1 by turning screw 2 in acco...
Page 90: ...uirement With lever 1 raised the clearance between the roller presser and the feed wheel must be 7 mm 13 15 Raise lever 1 Move bar 2 screws 3 in accordance with the requirement Take care to ensure tha...
Page 91: ...to the needle when viewed across the direction of sewing Raise the roller presser 1 Always observe requirement 1 when carrying out the following adjustments Move the roller presser 1 screw 2 in accor...
Page 92: ...atically 1 2 13 17 3 Fig 13 13 Move solenoid 1 screws 2 in accordance with the requirement Turn the machine on and check the requirement Turn the machine off Depending on the thickness of the material...
Page 93: ...presser must drop automatically when the knee lever is pressed as far as it will go 3 Bar 1 of the knee lever must be at an angle of approx 75 to the bedplate Turn screw 3 nut 4 in accordance with re...
Page 94: ...ccordance with the requirement Raise the roller presser using the automatic presser foot lifter or the knee lever Move the drive dog 4 screw 5 in accordance with the requirement The timing of the tens...
Page 95: ...se slightly from the workpiece rack 1 13 20 _ 6 5 7 m m 2 7 1 3 4 Fig 13 16 Move workpiece rack 1 screw 2 in accordance with requirement 1 Turn screw 3 screw 4 to adjust the strength of the spring Mov...
Page 96: ...bobbin winder off the friction wheel 5 must not engage the drive wheel 1 2 The bobbin winder must turn off automatically when the thread level is approx 1 mm from the edge of the bobbin Move drive wh...
Page 97: ...Fig 13 18 Adjust the roller presser pressure with screw 1 in accordance with the requirements Screw 1 is underneath a cover When the roller presser pressure is low the lowering speed of the roller pr...
Page 98: ...quirements 1 With the needle bar at BDC the recess 3 must be pointing downwards vertically 2 The control cam 1 must be touching the retaining collar 4 on the left 1 2 4 3 13 23 Fig 13 19 Position the...
Page 99: ...the thread trimmer is on and the needle bar is at BDC roller 7 must be in the middle of the recess in control cam 8 Position the needle bar at TDC Bring the thread trimmer to resting position Move ec...
Page 100: ...and the engaging solenoid activated there must be a clearance of approx 1 mm between latch 1 and roller lever 4 13 25 Disengage latch 1 and push the engaging solenoid up as far as possible Move the so...
Page 101: ...ght hand side of the actuating lever 3 must be flush with the right side of control cam 4 Loosen screws 1 and 2 Move the actuating lever 3 in accordance with the requirement Tighten screw 1 Slightly t...
Page 102: ...Requirement The distance between the centers of the two ball joints of the connecting rod 1 must be 100 mm Turn connecting rod 1 nuts 2 and 3 right and left handed threads in accordance with the requi...
Page 103: ...rews 1 and 2 Position thread catcher 3 over the middle of the bobbin case 4 Move the thread catcher 3 screw 5 in accordance with the requirement Find the vertical play of shaft 6 bring retaining colla...
Page 104: ...er 1 and knife 6 must be flush see arrow Position the thread trimmer in resting position Turn the thread catcher 1 in accordance with the requirement Bring crank 2 to rest against the bearing case 3 a...
Page 105: ...m the front edge of the knife 3 the knife 3 must be lightly touching the thread catcher 2 Disengage latch 1 Position the thread catcher 2 in front of the front edge of the knife by turning the handwhe...
Page 106: ...l and insertion of the bobbin case Bring the thread trimmer to resting position Move the clamp spring 1 screws 2 in such a way that the clamp lips are as close to the inner wall and the front edge of...
Page 107: ...ess must be just completed when the take up lever is at TDC Fig 13 28 2 3 1 Disengage the latch and bring the take up lever to TDC Turn the control cam 1 screws 2 in accordance with the requirement wh...
Page 108: ...reliably and the bobbin thread must be clamped Sew a few stitches Turn off the on off switch Disengage latch 1 Carry out the cutting process by turning the handwheel Check requirement 1 If necessary...
Page 109: ...ion disks 3 must be at least 0 5 mm apart 13 34 1 2 3 Fig 13 30 Activate solenoid 1 Move solenoid 1 screws 2 in accordance with the requirement The timing of the tension release can be adjusted via th...
Page 110: ...at the TDC of the needle bar after thread trimming Turn the machine off Select INPUT mode Select the input menu function number key 5 Select the SERVICE function Select the SEWING MOTOR function Selec...
Page 111: ...0 Enter 8 Esc Clear 5 3 2 The positions shown in Fig 13 31 comply with the standard settings If these parameter settings are altered an optimum sewing result cannot be guaranteed Adjusting the parame...
Page 112: ...er key 13 06 03 Adjusting speeds Turn the machine on Select INPUT mode Select the input menu function number key 0 Select the SPEED function 1 2 3 4 5 6 7 9 0 Enter 8 Esc Clear Fig 13 32 1 START DELAY...
Page 113: ...Notice...
Page 114: ...EMASCHINEN AG Postfach 3020 D 67653 Kaiserslautern K nigstr 154 D 67655 Kaiserslautern Telefon 0631 200 0 Telefax 0631 17202 E Mail info pfaff industrial com Gedruckt in der BRD Printed in Germany Imp...
