281/5 Sewing unit for closing seams for trousers and skirts Operating instructions 1 Installation instructions 2 Service instructions 3 Frohn rad stra ße 10, D-63768 Hös bach Telefon Ser vice +49 (0) 60 21/ 50 19 40 Telefax +49 (0) 60 21/ 54 00 61 E-mail: Vertrieb@beisler-gmbh.de Aus ga be / Edi ti on: 06/2005 Prin ted in Fe de ral Re pub lic of Ger ma ny Tei le-Nr.:/Part-No.
Foreword This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations. The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.
General safety instructions The non-observance of the following safety instructions can cause bodily injuries or damages to the machine. 1. The machine must only be commissioned in full knowledge of the instruction book and operated by persons with appropriate training. 2. Before putting into service also read the safety rules and instructions of the motor supplier. 3. The machine must be used only for the purpose intended. Use of the machine without the safety devices is not permitted.
Index Page: Preface and general safety instructions Part 1: Operating instructions cl. 1281/5 1. 1.1 1.2 1.3 Description of product Description of proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brief description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 3 2. Optional equipment . . . . . . .
Index Page: 7. Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8. 8.1 8.2 8.3 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.4.5 8.5 USB stick General notes . . . . . . . . . . . . . . . . . . . Formatting of the USB stick . . . . . . . . . . . Plugging the USB stick in the control . . . . . USB functions . . . . . . . . . . . . . . . . . . . Storing data on the USB stick . . . . . . . . . . Loading data from the USB stick . . . . . . . . Data comparison .
1. Description of product 1.1 Description of proper use The 1281/5 is a sewing unit which can properly be used for sewing light to medium-weight material. Such material is, as a rule, made of textile fibres. These materials are used in the garment industry. In general only dry material must be sewn on this machine. The material must not contain any hard objects. The seam is generally made with core thread, polyester fibre or cotton threads.
– – – – – – – – – – – – External control panel Efka V850 with: - Menu navigation - Freely programmable parameters for “Differential bottom feed (optional)”, “Needle feed (optional)”, “Ejector roller”, “Puller”, “Machine parameters”, “Global parameters”, “Program sequences” - Input and output tests - Check routine for step motors - 20 program storage locations - up to 7 seam programs per program storage location Vertical cutter with suction for overlocking and serging in one operation Chain separator wit
Dimensions: Working height: Weight: 2300 x 1300 x 1500 mm (L x W x H) 850...1200 mm (upper table top edge) 125 kg Noise level: LC = 81dB (A) Workstation-specific emission value according to DIN 45635-48-B-1 Stitch length: 2.6 mm Seam length: 1000 mm Speed: 6500 r/min Material G1 DIN 23328: 2 layers Measuring point according to DIN 4895 Part 1 X = 550 mm Y = 350 mm Z = 600 mm x - axis = at right angles to the feeding direction y - axis = main feeding direction z - axis = height 1 2.
3. Switching on - Switching off - Program stop 1 3.1 Switching on – Switch on main switch 1 (turn in clockwise direction). The control loads the machine program. The basic display appears in the display of the control panel. – Switch off main switch 1 (turn counter-clockwise). 3.
3.3 Program stop 2 2 1 1 For an immediate stop in case of operating errors, needle breakage etc. the safety system of the 1281/5 provides the following measures: – Press program stop switch 2 at the control panel. The running operations are stopped immediately. – Turn main switch 1 counter-clockwise. The sewing unit drops out immediately; all movements of the sewing unit stop immediately. 3.4 Restart after program stop Caution: Risk of injury! Switch the main switch off.
4. Operation of the sewing machine head 4.1 General notes The operation of the sewing machine head (needle insertion, threading of needle thread and hook thread etc.) is described in the attached separate Pegasus operating instructions. The instruction manual is included in the accessories of the sewing unit. Attention: Risk of injury! Please read the operating instructions of the sewing machine head carefully and observe all notes on safety.
4.2 Recommended threads Needle system: Recommended needle size: B27 Nm 80 for very thin material Nm 90 for thin material Nm 100 for medium-weight material High sewing security and good sewability are achieved with the following core threads: – Two-ply polyester endless polyester core-spun (e.g. Epic Poly-Poly, Rasant x, Saba C, ...) – Two-ply polyester endless cotton core-spun (e.g. Frikka, Koban, Rasant, ...
4.3 Removing / Putting on the fabric sliding sheet 2 3 2 1 The fabric sliding sheet 2 is held in the gap of the table top by the magnets 1. The edge guide 3 is fastened on the fabric sliding sheet. Removing the fabric sliding sheet – Carefully remove the edge guide 3 from the magnets in upward direction. – Swivel the fabric sliding sheet aside. The lower section of the sewing machine head is accessible now.
5. Operation of the sewing unit 5.1 Preparation table and worktable 2 1 4 1 3 The sewing unit is equipped with two preparation tables 1 and 2. The skirt parts or trousers parts are positioned on them. On the worktable 4 the trousers parts or skirt parts are fed and clamped with the mouse 3.
5.2 Mouse with guide rail and return mechanism 3 2 1 7 6 5 4 The mouse is used for clamping the trousers and skirt parts to avoid their sliding away. The guide rail 3 is flexible and adaptable to the contour of the workpiece. Caution: Risk of injury ! Do not reach into the open mouse. Inserting the workpiece – Place the workpiece between mouse plate 2 and clamping arm 1. – Close the mouse.
9 9 3 8 Aligning the guide rail 3 – Place the workpiece 8 on the worktable opposite to the sewing direction. – Loosen toggle screws 9. – Place the guide rail 3 close to the contour of the workpiece. – Tighten toggle screws 9 again. 1 Opening the mouse manually # 10 – Actuate lever 10. The mouse opens.
5.3 Feeding the workpieces and starting the sewing process The sewing unit for closing seams 1281/5 works semi-automatically at high speed. The operator of the sewing unit has to do the following: ® call up the desired seam program; ® feed and align the workpiece precisely; ® sew the first seam section manually; ® start the automatic sewing process; ® supervise the sewing process of the unit; ® remove the finished parts from the stacker.
5.4 Adjusting the blowing air for the nozzles in the table top 1 2 1 The blowing nozzles 1 in the table top support the precise stacking of the workpieces. – Set the intensity of the air blast by dial 2 at the control panel.
5.5 Setting the return speed of the mouse 2 1 3 The cylinder 2 presses the mouse mechanics 1 down. Thus, the mouse is pulled back to the feeding position. The return speed can be set. – Set the speed by dial 3 at the control panel.
5.6 Adjusting the fullness of needle and bottom feed Operator terminal in case of fullness adjustment adjustment via cylinder Operator terminal in case of fullness via step motors (optional equipment) 1 1 2 1 Needle feed, bottom feed and puller feed can be adapted to the sewing conditions with the dials 1 and 2. Via the control parameters you can determine which feed is changed with the dial 2. Adjusting the puller feed – Set the dial 1 correspondingly.
5.7 Setting the pressure of the puller 2 1 The pressure of the puller rollers 1 can be influenced via turning knob 2. – Turn knob 2 to the right. The pressure is increased. – Turn knob 2 to the left. The pressure is reduced.
5.8 Stacker 2 1 3 The finished workpieces are stacked on the throw-over stacker 2. The stacked and clamped workpieces can be removed by actuating the foot switch 1. The stacker is accessed by a control pulse. The pneumatic functions can be taken from the pneumatic wiring diagram. Caution: Risk of injury! Do not reach into the working area of the throw-over stacker during the stacking operation. Manual stacking – Press key 3 at the control panel. A stacking process is carried out.
6. Operation of the control 6.1 Operator terminal For the input and output of data an operator terminal with an LCD display and function keys is used.
Key Function Program the sequence (S) Creation of programs (Prg) Setting the global parameters Enter key Select parameter / scroll Alter parameter values 1 21
6.2 6.2.
Key 8 Input- Output test Key 9 Set global parameters Key 0 Creation of programs / Creation of sequences Calling up sewing programs – Switch the main switch on. The control initializes. The seam program previously used is loaded. – Press one of the keys “1, 2, 3, 4, 5, 6, 7, 8, 9, 0”. The selected seam program is loaded. 1 Calling up the parameter menu – Switch the main switch on. The control initializes. The previously used program appears in the display. – Press key “P”.
6.3 Seam programs 5 4 6 Designation of the individual seams: 4 = Crotch seam of hind trousers on top/ lining down 6 = Crotch seam of hind trousers down/ lining on top 5 = Side seam of hind trousers down/ lining on top 7 = Side seam of hind trousers on top/ lining down A seam program in the display of the control panel Program No. 24 Seam No.
The sewing unit 1281/5 is delivered with 9 standard seam programs: 5 6 4 1 Program No. Seam No.
6.4 Adjusting the control The parameter values are altered in the individual parameter menus. – Press key “P”. – Select the menu item. – Select the parameter to be altered with the keys “F1” or “F2”. – Press key “E”. – Alter the parameter value with the keys “Plus” or “Minus”. – Press key “P”. The new parameter value is stored. – Press key “P”. You return to the selection menu. – Press key “P”. You return to the sewing program.
6.4.1 Altering seam-specific parameters Needle feed (with cylinder) Via this parameter the needle feed is set.
Bottom feed (with cylinder) Via this parameter the differential feed is set.
Setting the ejector roller Via this parameter the ejector roller is set. Parameter 16: Number of stitches how long the seam chain is sucked (seam beginning) Setting range: 0....
Altering the machine parameters Parameter 30: Set the main speed Setting range: 0 - 6500 Parameter 31: Setting range: Manual sewing on/ off 0/1 Parameter 32: Number of stitches how long the table blowing remains switched on 0 …400 stitches Setting range: Parameter 33: Setting range: Number of stitches until the automatic start engages after the sewing start 0 ...
Altering the potentiometer Parameter 18: Needle feed potentiometer Off / On Setting range: 0/1 Parameter 19: Setting range: Differential feed potentiometer Off / On 0/1 Parameter 24: Line 1, Needle feed potentiometer Off / On 0/1 Setting range: Parameter 25: Setting range: Parameter 28: Setting range: Parameter 96: Setting range: Parameter 97: Setting range: Parameter 99: Setting range: Line 2, Needle feed potentiometer Off / On 0/1 Line 3, Needle feed potentiometer Off / On 0/1 Line 1, Differential fe
Setting the seam line Parameter 81: Length of line 1 Setting range: 0 ... Parameter 82: Setting range: Parameter 83: Setting range: Parameter 84: Setting range: Parameter 85: Line 1 Reduced speed 500...6500 Line 1 Stop at the end of the line Off / On 0/1 Setting range: Line 1 Sewing foot lift at the end of the line Off / On 0/1 Parameter 86: Setting range: Length of line 2 0 ...
6.4.
Altering global parameters Parameter 58: Display of the software version Parameter 59: 6.4.3 Input: Number of stitches how long the seam chain is sucked (seam beginning) 0 …50 Parameter 65: Input: Thread tension lift 0 …50 Parameter 79: Input: Soft start after “Stop in the seam” 0 …500 Input - Output test Via the input - output test the different input and output elements can be checked. Input test – Press key “P”. – Press key “8”. – Actuate the corresponding input. Example: Cover the light barrier.
Output test – Press key “P”. – Press key “8”. – Press key “Plus”. – – – Select the output element to be tested with the keys “Plus” or “Minus”. Switch the output on or off with the key “F2”. Press key “Program stop”. The program is quitted.
6.4.4 Creation of seam programs Note Before a new seam program can be created or an existing one can be deleted, the global parameter “56” has to be set to the value “0”. This avoids that the existing programs are changed inadvertently. – Press key “P”. – Press key “0” (global parameters). – Change over to parameter 56 with key “F1”. – Press key “E”. The parameter 56 is selected. – Set the parameter value to “0" with key “Minus. – Press key “P”. The new parameter value is stored.
6.4.5 Deleting a seam program – Press key “P” – Press key “9” – Press key “F2”. The display indicates: DELETE? 6.4.6 – Press key “F2” anew. The program is deleted. – Press key “P”. You return to the selection menu. 1 Altering seam programs (Changing / Completing the sequence) Note Before a seam program can be altered,the parameter “56” has to be set to the value “1". This avoids that the existing programs are deleted inadvertently. (see chapter 6.4.
7. Error messages In case of an error in the control system or in the machine program corresponding error messages are indicated in the display. Display Meaning Error 1 One of the parameters “18” or “19” is switched on (value = 1) Both parameters “18” and “19” are switched on (value = 1) In the current program the last existing seam was to be deleted. Error 2 Error 3 Errors of free programming Info U1 FP custom code wrong, e.g. describing a parameter which does not exist.
8. USB stick 8.1 General notes 1 The USB stick 1 serves for storing and transferring of the sewing unit software. By means of the USB stick program and parameter data can also be transferred to other sewing units. Commercially available USB 1 sticks can be used, too. 8.2 Formatting the USB stick Before using a new USB stick this has to be formatted correspondingly. The file format is the “FAT 16” system. – Format the USB stick with the FAT 16 system via a PC. 8.
8.4 USB functions The following functions can be carried out with a USB stick: 1) Storing and loading of global parameters File extension = *. PAR Parameter F-510 F-511 F-512 F-513 Function Securing from the control on the USB stick Loading from the USB stick in the control Comparing USB stick and control data Deleting data from the USB stick 2) Storing and loading of programs and seam parameters File extension = *.
If different program or parameter files are stored, the control allocates a new name each. Example: Storing of different parameter data 1st file 0100DATA.PAR 2nd file 0101DATA.PAR etc. The files can individually be renamed by the file manager or explorer on a PC. Note On principle, the Efka control can read data from the main level of the USB stick only. Data from subdirectories cannot be processed.
8.4.1 Storing data on the USB stick – Enter parameter. Example: 510 – Press key “E” The cursor flashes. – Press key “F2”. The file name chosen by the control appears. Example 0100DATA.PAR – Press key “E”. The data are written on the USB stick. Note The file name is allocated automatically. 8.4.2 Loading data from the USB stick – Enter parameter. Example: 511 – Press key “E” The cursor flashes. – Press key “F2”. The name of the first file stored on the stick appears. Example 0100DATA.
8.4.3 Data comparison – Enter parameter. Example: 512 – Press key “E”. The file name chosen by the control appears. Example 0100DATA.PAR – Press key “E”. The message appears. READ DATA – YES = E Press key “E” within 2 seconds. The data of the USB stick and the control are compared. The message appears. READ DATA 1 Possible displays 8.4.4 DATA OK The data on the stick are identical with the data of the control DATA DIFFERENT The data of the stick and the control are not identical.
8.4.5 Loading software version from the USB stick – Enter parameter 523. – Press key “E”. The cursor flashes. – Press key “F2”. The name of the first file stored on the stick appears. Example 20_5D_1A.PRG – Select the desired parameter file with the keys “+” or “-”. – Press key “E”. The message appears. READ DATA YES = E – Press key “E” within 2 seconds. The data are read from the USB stick. – Press key “P” and wait approx. 3 seconds until “Save Data” fades out. – Press key “E” twice.
8.5 Removing the USB stick 1 – – Switch the main switch off. Pull the USB stick 1 out of the slot of the Efka control.
9. Maintenance 9.1 Cleaning and checking Caution: Risk of injury ! Switch the main switch off. The maintenance of the engineered sewing station must only be carried out with the machine switched off. Maintenance work has to be done after the intervals indicated in the tables at the latest (see column “Operating hours”). The processing of fluffy material may require shorter maintenance intervals. A clean sewing station protects from disturbances.
Maintenance work to be done Explanation Operating hours Machine head - Remove sewing dust and thread Clean the entire area 1 of the thread guides under the fabric sliding sheet remainders. (e.g. with compressed air pistol) 8 Suction device Empty container 2 of the suction device - Turn the bottom part of the container to the left and remove it - Empty the container - Screw the bottom part on again in clockwise direction 8 The water level must not rise up to the filter insert 4.
9.2 Oil lubrication 1 Caution: Risk of injury ! Oil may cause skin eruption. Avoid a longer contact with the skin. Wash yourself thoroughly after a contact. ATTENTION ! The handling and disposal of mineral oils is subject to legal regulations. Deliver used oil to an authorized collecting station. Conserve your environment. Be careful not to spill any oil.
Index Page: Part 2: Assembly instructions cl. 1281/5 1. Sco pe of de li very. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Ge ne ral no tes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. 3.1 3.2 3.3 3.4 In stal ling the se wing unit . . . Trans port pro tec tions . . . . . . . Setting the wor king height . . . . Mounting the thread reel hol der. Moun ting the ma te ri al rests . . . . . . . .
2 3 1 4 9 8 5 7 6
1. Scope of delivery The scope of delivery depends on your order. The sewing unit consists of: 2.
3. Installing the sewing unit 3.1 Transport protections 1 2 Before the installation of the sewing unit all transport protections have to be removed. – Remove the security tapes at the thread reel holder, machine table etc. – Remove the protective foils 1. – Remove the security tapes 2 from the stacker. 3 4 – 4 Remove the protections from the mouse 4 and the reverse device 3.
3.2 Setting the working height 1 1 2 The working height is adjustable between 850 and 1200 mm (measured up to the top edge of the table top). – Loosen screws 1 at the spars. – Set the desired working height with the help of suitable auxiliary means. In order to avoid jamming lift the table top equally on both sides. – Retighten screws 1 at the spars.
3.3 Mounting the thread reel holder 3 – – 2 1 Insert thread reel holder 1 in retainer 2. Tighten the thread reel holder with the two screws 3. 3.4 Mounting the material rests 3 1 5 4 3 1 3 2 1 The material rests have be demounted for transportation. – Loosen the screws 2 at the fixtures 3. – Insert the bars 1 in the fixtures 3. – Retighten the screws 2 at the fixtures 3. – Loosen the screws at the fixtures 4 and 5 and align the height of the material rests.
4. Electrical connection ATTENTION ! Any work on the electrical equipment of the sewing unit must only be carried out by electricians or correspondingly instructed persons. The mains plug must be pulled out. 4.1 Checking the nominal voltage ATTENTION ! The nominal voltage indicated on the type plate of the sewing machine control and the mains voltage must correspond. Nominal voltage = 190 - 240 V, 50/60 Hz 4.2 Making the mains connection – 2 Connect the mains plug.
5. Pneumatic connection For the operation of the pneumatic components the sewing unit has to be provided with anhydrous compressed air. ATTENTION! For a trouble-free function of the pneumatic control processes the compressed air net has to be rated as follows: Even in the moment of maximum air consumption the minimum operating pressure must not drop below 6 bar. In case of a too high air pressure decrease: – Increase the compressor output. – Increase the diameter of the compressed air supply line.
6. Putting into operation 6.1 Sewing test After completion of the installation work a sewing test should be made. – Plug in the mains plug. Caution: Risk of injury! Switch the main switch off. Thread in needle and hook thread only with the sewing unit switched off. – – – – Thread in needle and hook thread (see operating instructions of the sewing machine head). Switch the main switch on. The control is initialized. Select the sewing program.
Für Ihre No tizen: 10
Index Page: Part 3: Service instructions class 1281/5 1. General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. 2.1 2.2 2.2.1 Brief instructions for the sewing head Adjusting the height of the needle bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjusting the hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distance between left hook and needle. . . . . . . . . . . . .
1. General notes The service instructions on hand describe the adjustment of the single-head overlock unit 1281/5. The manual consists of: · · Brief instructions for the sewing head Service instructions for the sewing unit ATTENTION ! The brief instructions are a summary of the detailed operating instructions of the sewing head. In any case these operating instructions have to be carefully read and all regulations have to be observed.
2. Brief instructions for the sewing head 2.1 Adjusting the height of the needle bar 1 2 3 Caution: Risk of injury! Switch the main switch off. Check and adjust the height of the needle bar only with the sewing unit switched off. Standard checking In the top dead centre of the needle bar the distance between the needlepoint 4 and the throat plate should amount to 9.7 - 9.9 mm. – Move the needle bar in its top dead centre.
2.2 Adjusting the hook 2.2.1 Distance between left hook and needle 5 2,3 - 2,5 mm 1 2 3 4 5 Caution: Risk of injury! Switch the main switch off. Check and adjust the hook only with the sewing unit switched off. 3 Cross-line adjustment Standard checking In the left reverse point of hook 5 the distance between the middle of the needle and the hook tip should amount to 2.3 - 2.5 mm. – Move the left hook in its left reverse point by handwheel.
2,3 - 2,5 mm 3 0 - 0,05 mm 6 7 4 Adjustment in sewing direction Standard checking The distance between hook tip 6 and needle 7 should amount to 0.0 - 0.05 mm. – Turn handwheel in direction of rotation until the hook tip is exactly at the level of the middle of the needle. – Shift the hook support 3 in such a way that the distance between hook support and needle amounts to 0.0 - 0.05 mm. – Check the cross-line adjustment once again and readjust, if necessary. – Tighten screw 4.
2.2.2 Distance between right hook and needle 1 4 8 7 5 6 3 2 Caution: Risk of injury! Switch the main switch off. Check and adjust the hook only with the sewing unit switched off. 3 Cross-line adjustment 9 10 4,3 - 4,5 mm Standard checking When the right hook is in its top reverse point, the distance between hook tip 9 and the middle of the needle should amount to 4.3 - 4.5 mm. – Screw off thread guides 1 and 3 as well as cover 2. – Move the hook in its top dead centre by handwheel.
4 Adjustment in sewing direction Standard checking When the right hook crosses the left hook, the distance “A” should amount to 0.5 mm and the distance “B” to 0.2 mm. Correction – Turn handwheel in direction of rotation until the right hook crosses the left hook. – Turn and shift the right hook in such a way that the distance “A” amounts to 0.5 mm and the distance “B” to 0.2 mm. – Tighten screw 4 in this position. – Check all adjustments once again and readjust, if necessary.
2.3 Adjusting the needle protection 2.3.1 Hind needle protection 1 3 4 2 3 4 Caution: Risk of injury! Switch the main switch off. Check and adjust the needle protection only with the sewing unit switched off. 3 Standard checking When the tip of the left hook 3 is at the level of the middle of the needle, the needle protection 1 should abut on the needle. There should be a distance of 0.0 - 0.05 mm between hook tip and needle.
2.3.2 Front needle protection 1 1 4 2 Caution: Risk of injury! Switch the main switch off. Check and adjust the needle protection only with the sewing unit switched off. Standard checking In the lower dead centre of the needle the distance between needle protection 1 and needle should amount to 0.03 - 0.05 mm. – Turn handwheel in direction of rotation until the needle is in its lower dead centre. – Check the position of the front needle protection.
2.4 Adjusting the feed-dog 2.4.1 Feed-dog position 1 2 2 1 Caution: Risk of injury! Switch the main switch off. Check and adjust the feed-dog position only with the sewing unit switched off. 3 Standard checking In their highest position the feed-dogs should be horizontal. – Turn handwheel in direction of rotation until the feed-dogs are in their highest position. – Check the position of the feed-dogs.
2.4.2 Feed-dog height 6 3 3 4 5 1 2 Caution: Risk of injury! Switch the main switch off. Check and adjust the feed-dog height only with the sewing unit switched off. Standard checking When the feed-dogs are in their highest position, the teeth of the main feed-dog 4 should be 0.8 mm above the top edge of the throat plate, the teeth of the differential feed-dog 5 0.9 to 1.0 mm and the teeth of the auxiliary feed-dog 6 0.6 to 0.7 mm.
2.5 Presser foot 2.5.1 Presser foot lift Head EXT 3216 7 6 5 4 3 2 1 Caution: Risk of injury! Switch the main switch off. Check and adjust the presser foot lift only with the sewing unit switched off. 3 Standard When the piston rod 7 is extended, the lever 6 should abut on screw 5 and the clearance under the sewing feet should amount to 4 mm. 8 7 Correction – Loosen counternut 4 and screw the screw 5 down completely. – Swivel the sewing foot in.
2.5.2 Presser foot 4 3 2 1 5 4 Caution: Risk of injury! Switch the main switch off. Check and adjust the presser foot only with the sewing unit switched off. Standard The hinges of the hinged sewing foot must be free of clearance and smooth-running. The front sewing foot sole 1 and the hind sewing foot soles 4 have to be in parallel position. Correction of lateral inclination – Remove the front sewing foot sole 1. – Bring the head into position “needle down”. – Place two approx.
2.6 Upper and lower knife 2.6.1 Changing and adjusting the upper knife Head EXT 32-16-03/233K 3 2 1 Caution: Risk of injury! Switch the main switch off. Change and adjust the upper knife only with the sewing unit switched off. Standard In the lowest position of the upper knife the front edge of the blade should be 0.5 to 1.0 mm underneath the top edge of the throat plate. Correction – Turn the handwheel until the needles are in their top reverse point and swivel the sewing foot out.
2.6.2 Changing and adjusting the lower knife Head EXT 3216-03/233K 4 3 2 1 Caution: Risk of injury! Switch the main switch off. Change and adjust the lower knife only with the sewing unit switched off. Standard The blade of the lower knife has to be flush with the top edge of the throat plate. Correction – Remove the fabric sliding sheet. – Swivel the sewing foot out. – Loosen screw 4. – Draw the holder of the lower knife 3 to the left as far as it will go and tighten screw 4 slightly.
2.7 Thread regulation of overlock hook 1 2 3 4 5 10 9 8 7 6 Caution: Risk of injury! Switch the main switch off. Check and adjust the thread regulation only with the sewing station switched off. 3 Standard The position of the individual thread guides or thread pullers is dependent on the material, the sewing thread and the stitch type. Therefore the following setting values have to be regarded as standard values only. Correction – Turn the handwheel until the right hook is in its top reverse point.
3. Adjusting the sewing unit 3.1 Adjusting the light barrier 2 1 5 4 3 Caution: Risk of injury! The adjustment of the light barrier is done with the sewing unit switched on. Carry out adjustment and function test with utmost caution. Aligning the light barrier The light barrier 2 has to be aligned to the area 1 of the machine head. – Loosen screws 4 and 5. – Align the light barrier support 3 correspondingly. – Tighten screws 4 and 5.
3.2 Adjusting the material stop 3 2 1 Caution: Risk of injury! Switch the main switch off. Adjust the material stop only with the sewing unit switched off. 3 Standard The material stop 2 must completely abut on the sewing foot 3 so that the material cannot be pushed upward between sewing foot 3 and stop 2. Correction – Loosen screws 1. – Push the material stop 2 completely against the sewing foot 3. – Tighten screws 1.
3.3 Adjusting the contour guide 2 1 1 3 Caution: Risk of injury! Switch the main switch off. Adjust the contour guide only with the sewing unit switched off. Standard The contour guide 1 should move forward as far as to ensure that both material plies 2 are always guided safely when sewing the contour. Correction of the swivelling width – Loosen the clamping lever 3. – Shift the contour guide 1 correspondingly. – Tighten the clamping lever 3. Correction of the stamp position – Loosen nut 6.
3.4 Direct sewing drive 3.4.1 Setting the reference 1 Caution: Risk of injury! Switch the main switch off. Check and adjust the hook setting only with the sewing unit switched off. 3 Standard When the needle is in the position “7 mm after the bottom dead centre”, the drive belt has to be put on in such a way that the feather key 2 in the motor shaft points to the marking 1 in the motor casing. Correction – Remove the toothed belt.
4. Oil lubrication Caution: Risk of injury ! Oil can cause skin eruption. Avoid a longer contact with the skin. Wash yourself thoroughly after a contact. ATTENTION ! The handling and disposal of mineral oils is subject to legal regulations. Deliver used oil to an authorized collecting station. Conserve your environment. Be careful not to spill any oil. 4.
5. Maintenance Caution: Risk of injury ! Switch the main switch off. The maintenance of the sewing unit must only be done with the machine switched off. The daily or weekly maintenance work (cleaning and oiling) to be carried out by the operators of the sewing unit is described in the operating instructions (chapter 8). This is listed in the following table for the sake of completeness only.
Note: 24
