Duerkopp Adler 550-12-12 Service Instructions Manual
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Also See for 550-12-12:
- Installation instructions manual (6 pages) ,
- Operating instructions manual (15 pages) ,
- Spare parts (60 pages)
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Contents
Part 3: Service Instructions Cl. 550-12-12
1.
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
Setting the Machine Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
Arm Shaft Crank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Position of the Lower Timing Belt Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Rocker Bolt and Left Lower Shaft Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
Hook Drive Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5
Inserting the Hook in the Hook Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6
2.6.1 Looping Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.2 Symmetry of Looper Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.3 Needle Bar Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.4 Setting with the Stroke Tongue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7
Needle Avoidance Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8
Needle Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
3.1
Main Feed Dog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
Differential Feed Dog and Step Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
Height of the Feed Dogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
Feed Dogs Lengthwise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
Advancing Movement of the Feed Dogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6
Lift Movement of the Feed Dogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7
Stitch Condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Stitch Length Controlled Lower Thread Take-up Lever . . . . . . . . . . . . . . . . . . . . .
5.
Take-up Lever Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.
Top feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1
Height of the Transport Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2
Pressure Setting for the Top Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3
Lift Level Alteration for the Top Feed System . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4
Advancing Movement of the Top Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5
Transport Foot Lengthwise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.6
Lift Movement for the Transport Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.7
Stopping Angle for the Transport Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.
Pressure Foot Lift Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents
Related Manuals for Duerkopp Adler 550-12-12
Summary of Contents for Duerkopp Adler 550-12-12
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Page 1: Table Of Contents
Home Contents Page: Part 3: Service Instructions Cl. 550-12-12 General ..........Setting the Machine Head . - Page 2 Thread Trimmer ......... . . Retaining Ring .
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Page 3: General
1. General ATTENTION ! The tasks described in the service instructions may only be conducted by specialists or appropriately trained personnel ! Caution Risk of Injury ! During repair, conversion and maintenance work turn the main switch off and disconnect the sewing unit from the pneumatic supply line. Adjustment work and function tests with the machine running are to be conducted only while observing all safety measures and with extreme caution. -
Page 4: Setting The Machine Head
2. Setting the Machine Head 2.1 Arm Shaft Crank The marking groove of the arm shaft crank and the slot A of the adjustment disc must be in line. Caution Risk of Injury ! Turn off main switch before adjusting. –... -
Page 5: Position Of The Lower Timing Belt Pulley
2.2 Position of the Lower Timing Belt Pulley The screws of the lower timing belt pulley should be in the position shown when the sewing unit is arrested in position D (4 notches visible). Caution Risk of Injury ! Turn off main switch before adjusting. –... -
Page 6: Rocker Bolt And Left Lower Shaft Bearing
2.3 Rocker Bolt and Left Lower Shaft Bearing The clearance from the center of the needle to the start of the left lower shaft bearing should be soll 39.8 mm. The clearance from the center of the needle to the end of the rocker bolt should be 38.8 mm. -
Page 7: Hook Drive Housing
2.4 Hook Drive Housing The needle tip point to the middle of the hook shaft. The hook shaft lower edge runs parallel to the bottom of the needle plate. The clearance from the top of the needle plate support to the hook shaft lower edge is 50.5 mm. -
Page 8: Inserting The Hook In The Hook Holder
2.5 Inserting the Hook in the Hook Holder The front of the hook should be at an angle of 89° 30’ to edge 1 of the apparatus opening. Caution Risk of Injury ! Turn off main switch before adjusting. – Screw out screw 3 of the hook. -
Page 9: Looping Stroke And Needle Bar Height
2.6 Looping Stroke and Needle Bar Height 2.6.1 Looping Stroke The looping stroke is 3.5 mm. This means that when the needle is raised 3.5 mm out of the lowest point by turning the handwheel in the direction of turn the hook tip must stand at the center of the needle. -
Page 10: Symmetry Of Looper Motion
2.6.2 Symmetry of Looper Motion The symmetry of looper motion is set with the gauges 1 and 2 (Order no. 933 080192). Caution Risk of Injury ! Turn off main switch before adjusting. – Arrest the machine head in position D (4 notches visible). –... -
Page 11: Needle Bar Height
2.6.3 Needle Bar Height The height of the needle bar is correctly set when the hook eye lies at the needle center and the lower edge of the needle eye stands at the upper edge of the hook eye. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 12: Setting With The Stroke Tongue
2.6.4 Setting with the Stroke Tongue Setting the looping stroke can also be conducted with the setting block and the stroke tongue. Caution Risk of Injury ! Turn off main switch before adjusting. Prerequisite for the setting of the looping stroke with the stroke tongue is the correct setting of the needle bar height (see 2.6.3). -
Page 13: Needle Avoidance Movement
2.7 Needle Avoidance Movement With needle avoidance movement (ellipse width) is meant the movement, which the hook conducts in oder to pass in its movement from right to left behind the needle and from left to right in front of the needle. - Page 14 Caution Risk of Injury ! Before measuring and setting turn the main switch off. Measuring the ellipse width – Attach gauge 1 with parts set 2 (Order no. 933 000743). – By turning the handwheel set the lowest and the highest point. The difference must correspond to the ellipse width.
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Page 15: Needle Guard
2.8 Needle Guard The needle guard 1 is to hinder a diversion of the needle into the path of the hook. Caution Risk of Injury ! Turn off main switch before adjusting. Preparation – Remove the needle plate and feed dog. 1. -
Page 16: Differential Bottom Feed
3. Differential Bottom Feed 3.1 Main Feed Dog The bottom feed operates with 2 independently adjustable feed dogs arranged in tandem. The advancing length of the main feed dog (right feed dog carrier) is determined by the position of the left guide shaft 3. It is set at the factory at an advance of 2,5 mm for the normal stitch length. -
Page 17: Differential Feed Dog And Step Cylinder
3.2 Differential Feed Dog and Step Cylinder In the base setting (Additional width = 0) the differential feed dog is set at a stitch length of 2.5 mm by a sewing speed of 2 800 min The step cylinder is in the base position. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 18: Height Of The Feed Dogs
3.3 Height of the Feed Dogs The main feed dog 4 (right feed dog carrier) in the highest position should lie parallel 1.1 mm over the upper surface of the needle plate. The differential feed dog 3 (left feed dog carrier) in the highest position should lie parallel 1.5 mm over the upper surface of the needle plate. -
Page 19: Feed Dogs Lengthwise
3.4 Feed Dogs Lengthwise With a maximum additional width set at the controls the feed dogs should not hit each other and also not hit the needle plate. Caution Risk of Injury ! Turn off main switch before adjusting. – Loosen screws 1 and 2. -
Page 20: Advancing Movement Of The Feed Dogs
3.5 Advancing Movement of the Feed Dogs The advancing movement of the feed dogs is determined by the position of the cams 1 and 2 on the lower shaft. The setting of the advancing cams is made with gauge 3 (Order no. -
Page 21: Lift Movement Of The Feed Dogs
3.6 Lift Movement of the Feed Dogs The lift movement of the feed dogs is determined by the position of the cam 2 on the lower shaft. The needle bar must have started a hole (fixed) in the material during the needle bar downward movement when the feed dogs are flush with the upper edge of the needle during their lift out of the needle plate. -
Page 22: Stitch Condensation
3.7 Stitch Condensation The stitch condensation is set with the step cylinder. It must be activated at the controls via function F3. The carrier 1 sets the stitch regulator guide 4 for the main feed dog at the correct stitch length by stitch condensation. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 23: Stitch Length Controlled Lower Thread Take-Up Lever
4. Stitch Length Controlled Lower Thread Take-up Lever The stitch length controlled lower thread take-up lever makes possible an automatic adaption of the lower thread quantity to each stitch length. When the stitch length is altered the lower thread take-up lever activated appropriately by the lower guide shaft 2. - Page 24 ATTENTION ! By extreme settings; e.g. shortest possible stitch length and largest possible thread quantity (elastic seam) care is to be taken that a sure stitch of the needle into the thread triangle can still be made. By over-large lower thread quantities missing stitches can occur. When, with the above mentioned settings, the stitch length is increased by a greater amount then the thread guide must be set back toward 0.
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Page 25: Take-Up Lever Disc
5. Take-up Lever Disc When the hook starts its return movement from left to right, the take-up lever disc 1 should touch the thread and pull it back. Caution Risk of Injury ! Turn off main switch before adjusting. – Arrest the sewing unit in position B (2 notches visible). -
Page 26: Top Feed
6. Top Feed The top feed is executed as a so-called "light stroke" top feed. Top transport foot 4 and pressure foot 3 have seperate suspensions and springs. Independent of the pressure of the feed foot the desired lighter seating pressure for the pressure foot can be set. This makes an effective working in of the upper additional width possible. -
Page 27: Height Of The Transport Foot
6.1 Height of the Transport Foot If the pressure foot 3 lies on the needle plate then the clearance between the block 2 and the underside of the pressure foot holder 1 is 0.2 mm. When the feed dogs are in the highest position then the transport foot 4 must lay parallel onto the feed dog. -
Page 28: Pressure Setting For The Top Feed
6.2 Pressure Setting for the Top Feed Through spring pressure and seating of the guide block 5 on the support angle 6, the block 7 with the top feed foot is held in the lower position. The correct pressure setting of the transport foot is necessary for optimal material transport. -
Page 29: Lift Level Alteration For The Top Feed System
6.3 Lift Level Alteration for the Top Feed System The sewing unit is equipped with an adjustable lift level for the top feed system. This effects optimal transport results for smooth sewing and with crimping work by thin as well as thick materials. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 30: Advancing Movement Of The Top Feed
6.4 Advancing Movement of the Top Feed To bunch additional width the top feed and the differential feed dog (left feed dog carrier) must together be set larger than the main feed dog (right feed dog carrier). The length changes are effected by the step cylinder. -
Page 31: Transport Foot Lengthwise
6.5 Transport Foot Lengthwise Even with the greatest additional width activated when sewing the top feed foot should not strike the pressure foot sole. Therefore with the greatest additional width there must also be a minimum clearance of 0.8 mm set between the top feed foot and the pressure foot sole. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 32: Lift Movement For The Transport Foot
6.6 Lift Movement for the Transport Foot 1,5 mm The lift movement of the transport foot is to be set so that the transport foot only rises from the needle plate when the needle eye lower edge stands 1 mm above the needle plate. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 33: Stopping Angle For The Transport Foot
6.7 Stopping Angle for the Transport Foot The stopping angle 2 limits the lowest position of the transport foot movement when the pressure foot is raised. It raises the transport foot 4 during the lift. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 34: Pressure Foot Lift Stroke
7. Pressure Foot Lift Stroke The pressure foot lift stroke is set at a stroke height of 6 to 7 mm. Caution Risk of Injury ! Turn off main switch before adjusting. Pre-setting The needle bar must be in the high position and the synchronizer must be set correctly. -
Page 35: Thread Trimmer
8. Thread Trimmer 8.1 Retaining Ring At the seam end the thread cutting device is switched on. After stepping back on the pedal up to the stop the cylinder is operated by a solenoid valve. The hooked knife is moved out of its clamping and cutting position to the left. -
Page 36: Cutting Pressure And Thread Gripper Plate
8.2 Cutting Pressure and Thread Gripper Plate The setting of the thread trimmer occurs with it removed from the unit. Caution Risk of Injury ! Before removing the thread trimmer turn the main switch off. – Remove the thread trimmer. –... -
Page 37: Left End Position Of The Hooked Knife
8.3 Left End Position of the Hooked Knife In the left end position of the hooked knife the knife plate should not hit the table top. The cutting position for the needle thread and the gripping position for the hook thread are to be set. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 38: Right End Position Of The Hooked Knife
8.4 Right End Position of the Hooked Knife The right end position of the hooked knife is the clamping and cutting position for the lower thread. Caution Risk of Injury ! Turn off main switch before adjusting. Right end position –... -
Page 39: Puller For The Hook Thread
9. Puller for the Hook Thread During the movement of the knife operating bar up to its right end position so much hook thread must be pulled forward that the hook thread gripped by the hooked knife can be loosely lead against the clamping plate and counter knife. -
Page 40: Tension Release
10. Tension release Simultaneously with the beginn of the thread cutting procedure the thread release slide 1 opens the upper and lower thread tension . The thread release slide 1, in the idle position of the thread cutting device, should lie approx. 0.5 mm in front of the tension discs. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 41: Puller For The Needle Thread
11. Puller for the Needle Thread The drawn-forward, tension-free upper thread improves the sure stitch formation at the next seam beginning. The thread puller plate 2 sets the length of the pull-off. Caution Risk of Injury ! Turn off main switch before adjusting. –... -
Page 42: Thread Guide On The Am Machine Arm
12. Thread Guide on the Machine Arm When the thread lever 1 is in the upper dead center, then the thread holes of the thread guide 3 and the thread lever should build a horizontal line. Caution Risk of Injury ! Turn off main switch before adjusting. -
Page 43: Service Settings At The Electrical Components
13. Service Settings at the Electrical Components Controls concept for the Class 550-12-12 The following explanations and setting notes are important as a basis for the understanding of the unit. Service work on the electrical components is not possible without this knowledge. - Page 44 Adaptions: Sewing machine, sewing drive, interface, monitor controls, tape feed and tape pull-off unit are all universal components which must be adapted for use with cl. 550-12-12. 1 Sewing drive: Adaption of parameters necessary. 2 Interface: Adaption of control functions via switches on the integrated circuit board.
- Page 45 For the entering of parameters a control panel V720 or V730 is required. To be changed are: (old values in brackets) Nr. 111 to 3000 (4000) n max. Nr. 117 to 1000 (2000) DB 2000 (stroke adjustment rpm) Nr. 153 to 3 brake cycling at idle Nr.
- Page 46 13.2 Interface ( 2 ) The interface consists of a circuit board which conducts the electrical distribution and at the same time contains electrical adaptions and interlocks. Switch positions Cl. 550-12-12 All KW values on at 1.7 mm stitch length Electronics switched over to Cl.
- Page 47 13.3 Monitor Controls 200-3 ( 3 ) General: There are no hardware adaptions for these controls. Monitor controls with 2 For the programming special instructions are available. 30-pin plug connections Thus, here only relationships not dealt with there will be explained. These controls are for use with cl.
- Page 48 Only in part freely programmable The input and output signals of the 200-3 controls are still partially electronically linked at the interface. Thus, for example, with 1.7 mm short stitching, all stages of the multi-position cylinder are switched on or with (planned) multi-width application smooth sewing is automatically selected for bartacking or stitch condensation.
- Page 49 13.4 Tape Pull-Off Unit (5) It is an independently working unit only requiring a 24V current supply for operation. Function: With cl. 550-12-12 the edge binding should have no pre-tension during feed. This is only possible if the edge binding is drawn off of a loosely hanging loop when being sewn on.