DURKOPP ADLER 381 User manual

Contents Page:
Part 2: Installation Instructions cl. 381 - 382
1. Delivery scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. General and Transportation safety precautions . . . . . . . . . . . 3
3. Stand installation
3.1 Installing stand parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Completing table top and fastening to the stand . . . . . . . . . . . . . 5
3.3 Setting working height . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Installing and connecting sewing motor
4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Fitting sewing motor under the table top . . . . . . . . . . . . . . . . . 7
5. Installing machine head
5.1 Inserting machine head . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Fitting the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Placing and tensioning the V-belt . . . . . . . . . . . . . . . . . . . . . 9
5.4 Fitting the pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.5 Fastening the knee lever . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.6 Fitting the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.7 Fitting the sewing lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6. Electrical connection
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Checking nominal voltage . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3 Connecting sewing motor . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 Connection bushes on control box . . . . . . . . . . . . . . . . . . . . 15
6.5 Establishing cable connections . . . . . . . . . . . . . . . . . . . . . . 16
6.6 Installing the positioner . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.7 Equipotential bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.8 Checking the direction of rotation . . . . . . . . . . . . . . . . . . . . . 18
6.9 Checking the positioning . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.10 Setting the positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7. Pneumatic connection . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8. Oil lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9. Sewing test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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1. Delivery scope
The scope of delivery depends on your order.
Before installing, please check whether all the required parts are available.
Equipment (depending on the sub-class):
–1Sewing lamp
–2Machine head
–3Table top
–4Drawer
–5Stand
–6Thread unwinder
–7Positioner
–8Belt guard
–9Control panel
–10 Main switch
–11 Knee lever
–12 Sewing motor
–13 Conditioning unit
–14 Pedal linkage
–15 Pedal
–Belt pulley and V-belt
–Small parts in the accessories
2. General and Transportation safety precautions
NOTE !
The special sewing machine should be operated
exclusively by qualified operators.
If you have received a special sewing machine that has been prepared for a safe
transportation, remove following safety elements:
–Safety bands and wooden ledges on the machine head, on the table and on the
stand
–Safety block and bands on the sewing motor
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3. Stand installation
3.1 Installing stand parts
–Install individual parts of the stand as shown in the illustration.
–Slip-on the available stand feet 15.
–Loosen slightly the screws 14 on both lateral and transversal struts 16 and ensure
that the stand stands safely.
The stand should rest on the ground with all its four feet!
3.2 Completing table top and fastening to the stand
–Insert machine head support 1 into the bore-hole of the table top.
–Insert the hinge bottoms 2 for the machine head into the recesses of the table top 4
and screw up.
–Insert rubber corner 8.
–Pull-in rest plugs 3 and slip-on pressure spring.
–Screw drawer 5 with its holders on the left under the table top.
–Screw main switch 12 on the right under the table top.
–Screw cable duct 10 behind main switch 12 under the table top.
–Screw the holder 9 for the strain relief of the connection cables behind the
cable duct 10 under the table top.
–Screw the sewing lamp transformer 11 (additional equipment) under the table top.
–Fasten the oil collector 13 in the table top recess by nails.
(For distance, see the sketch., nails in the accessories)
–Fasten the table top 4 on the stand by wood screws (B8 x 35).(for position, see
the sketch)
–Introduce the thread unwinder 7 into the bore-hole in the table topand fasten by
nuts and shims.
Fit and align thread reel holder and unwinder arm.
The thread reel holder and the unwinder arm should be vertically superposed..
–Screw the holder for the oil can 6 to the left stand strut.
30 mm
25 mm
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3.3 Setting working height
The working height is adjustable between 750 and 900 mm (measured from the upper
edge of the table top).
–Loosen the screws 4 on both stand struts.
–Adjust the table top horizontally for the desired working level.
For avoiding tilting, pull out or push in the table top equally on both sides.
–Retighten both screws 4.
4. Installing and connecting sewing motor
4.1 General
Motor package
Under the ref. no. 9889 038201 8 the 381 - 382 will be supplied with a complete motor
package, including following elements:
–Sewing motor DC1600 / DA82GA 3239
–Main switch with connection cables
–Control panel
–Pedal linkage
–Belt pulley
–V-belt
–Connection diagram
–Fastening and connection material.
4.2 Fitting sewing motor under the table top
–Fasten the sewing motor 3 with its base 2 to the underside of the table top.
Turn the 3 hexagon screws 6 (M8x35) with the shims 5 into the nuts 1 of the table
top.
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6 7
8 9
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5. Installing machine head
5.1 Insert machine head
–Insert machine head 1 into the cut-out of the table top.
5.2 Fitting the keys
The tension plate has 3 threaded holes for fastening the keys.
–Fasten the key 11 to the tension plate by 2 screws as shown in the illustration on
side 10. Two screws are included in the accessories.
2 positions are possible. In the right hand position there is more space at the lever
for connecting and disconnecting the needles.
–Remove the bobbin cover and pass the incoming cable through its duct.
–Pass the plug through the table top cut-out and introduce into the bush B3 of the
drive controller.
5.3 Placing and tensioning the V-belt
Remove the safety devices
–Remove the belt guard cover 6 from the sewing motor.
Place V-belt in position and fit belt guard 3 on the machine head
–Fasten belt pulley 8 (in the accessories) on the shaft of the sewing motor.
–Place the V-belt 4 through belt guard on the belt pulley 2 of the machine head.
–Pass the V-belt 4 down through the cut-out in the table top.
–Tilt the machine head backwards.
–Place the V-belt 4 onto the belt pulley 8 of the sewing motor.
–Return the machine head into its initial position..
When tilting, the belt guard should freely enter the cut-out in the table top.
–Screw up the belt guard on the machine head.
Tensioning the V-belt
–Loosen the screw 7 on the base of the sewing motor.
–Tension the V-belt by swinging the sewing motor 9.
When the tension of the V-belt is correct and when the belt is pressed in its middle
(without any excessive force) it must yield inwards about 10 mm.
–Re-tighten the screws 7.
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1 Setpoint generator
6 Sewing motor with control box
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Fitting the belt guard on the sewing motor
–Adjust the safety devices of the belt guard 6 (adjustable cams or squares,
depending on the motor type) as follows (see page 8):
After tilting the machine head, the V-belt 4 (seepage 8) must still rest on its pulley.
See also the available operating instructions of the motor manufacturer!
–Replace the cover of the belt guard 6 (see page 8) and fasten it by screws.
5.4 Fitting the pedal
–Fasten the pedal 8 to the stand strut 7.
–For ergonomic reasons, adjust the pedal 8 sideways as follows:
The middle of the pedal must stand more or less under the needle.
The stand strut contains longitudinal holes for the adjustment of the pedal.
–Screw the spherical bolts from the middle into the front bore-hole of the lever 2.
–Hang-in pedal rods 3.
–Loosen slightly screw 4.
–Adjust the height of the pedal rods 3 as follows:
The released pedal 8 should have an inclination of about. 10°.
–Re-tighten screw 4.
5.5 Fastening the knee lever
The knee lever 5 is used for mechanical lifting of the sewing feet.
–Hang-in knee lever 5.
–Loosen the screws on the joint 9 .
Adjust the knee lever so that it can be conveniently operated by the right knee.
Re-tighten the screws on the joint 9.
–Loosen screw 10.
Adjust knee pad.
Re-tighten screw 10.
NOTE !
Remove the knee lever 5 before tilting the machine head.
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5.6 Fitting the control panel
The machine head provides 2 threaded holes for fastening the control panel.
–Fasten the external control panel 2 by a square and 2 screws at a side of the
sewing machine head.
–Lead the connection cable of the control panel 2 through the table top cut-out and
pass it down.
–Introduce the plug of the connection cable into the bush B776 of the drive
controller.
5.7 Fitting the sewing lamp
NOTE!
The sewing lamp will be supplied with current also when
the main switch is turned off.
–Stick the adhesive label with the safety indication to the front of the main switch.
–Remove the bobbin cover.
–Fasten the holder 3 to the bobbin cover by the screw 4 and the toohted washer 5
(see picture).
–Place the sewing lamp.
–Install the incoming cable in its duct.
–Lead the connection cable through the hole in the table top and pass it down.
–Fasten the sewing lamp transformer by chip board screws to the table top.
–Fasten the connection cable by cable binder under the table top.
–Connect the incoming cable to the sewing lamp transformer by a plug-in connector.
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6. Electrical connection
6.1 General
NOTE !
Any work on the electrical equipment of the special sewing
machine should be carried out exclusively by qualified
electricians or by accordingly instructed persons.
The mains plug must have been pulled out!
It is absolutely necessary to note the Operating
Instructions of the manufacturer, supplied together
with the sewing motor!
Connection package and grounding set
The electrical connection package and the grounding set are included in the
accessories of the special sewing machine.
The connection package includes all parts that are necessary for the electrical
connection of the sewing machine head to the sewing motor.
The grounding set serves for grounding the sewing machine head.
For connecting, see chapter 6.7.
6.2 Checking nominal voltage
NOTE !
The rated voltage and the nominal voltage, stated on the
rating plate, must agree.
The direct current drives, where used, are driven by single-phase alternating voltage.
For avoiding overloading of a single phase when connecting several machines to a
three-phase mains, please note the following:
The connections of the individual machines must be evenly distributed to the phases of
the three-phase mains (for cabling, see the circuit diagram).
6.3 Connecting the sewing motor
–Pass the incoming cable of the main switch through the cable duct to the sewing
motor.
–Connect the commutation transmitter and the setpoint generator (pedal).
–Pass the mains cable of the main switch through the cable duct and through the
holder.
–Secure the mains cable by a strain relief clamp.
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6.4 Connection bushes on control box
Connection bush Assignment
B1 Positioner
B2 Commutation transmitter for DC motor
B3 Key block (on sewing machine arm)
B4 not assigned!
B5 not assigned!
B18 not assigned!
B80 Setpoint generator (pedal)
B776 Control panel Variocontrol
ST2 Inputs and outputs (sewing machine head)
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6.5 Establishing cable connections
The electrical connections to the machine head are passed through the central plug-in
connector 1.
–Introduce the plug into the bush of the sewing machine head.
–Pass the plug through the table top opening and introduce into the bush ST2 of the
drive controller.
6.6 Installing the positioner
–Slip the positioner 3 onto the handwheel flange.
The slot 6 on the positioner housing must catch over the anti-rotation element 5 on
the belt guard.
–Tighten both threaded pins 2 on the position transmitter ring 4.
–Lead the connection cable 7 through the table top bore-hole and pass it down.
–Introduce the plug of the connection cable into the bush B1 of the drive controller.
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6.7 Equipotential bonding
The grounding cable 1 (in the accessories) guides the static charges of the machine
head via the sewing motor to the ground.
–Fasten the cable lug of the grounding cable by the screw (M4) and by the shim to
the base of the sewing motor.
–Pass up the grounding cable.
–Fasten the grounding cable 1 by flat connector 2 to the machine base plate.
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6.8 Checking the direction of rotation
NOTE !
It is absolutely necessary to check the direction of rotation
of the sewing motor prior to putting the special sewing
machine into operation.
Damages can result if the special sewing machine is
started to run in the wring direction of rotation.
The arrow in the illustration shows the proper direction of rotation (counter clockwise
rotation).
The special sewing machines, that are supplied fully assembled, have been factory-set
for the counter clockwise rotation (when looking at the belt pulley.
If the special sewing machine is supplied by single components, check the direction of
rotation.
The direction of rotation is set on the control panel by means of the parameter F-161
(drE).
For checking the direction of rotation:
–Introduce the mains plug.
–Turn on main switch.
–Call on the control panel the parameter F-161 of the technician level.
The parameter must be set to the value " 1" (counter clockwise rotation).
–If required, correct the parameter value.
NOTE !
Following a change of the direction of rotation, the
positions must be programmed once again.
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6.9 Checking the positioning
Reference position
The reference position is the starting point for all factory-set positions. In the reference
position, the point of the lowered needle stands level with the top of the throat plate.
Position 1
The 1st position serves for starting the cutting process if the sewing machine is supplied
with a thread cutter. The sewing machine is then 2 mm behind its lower dead point.
Position 2
In the 2ne position, the thread take-up lever must be in its upper position.
Checking the positioning
After thread cutting, the sewing machine must stop in the 2nd position (thread take up
lever in upper position).
–Turn on main switch.
–Lower the pedal briefly forwards.
–Lower the pedal backwards completely and hold it lowered.
The thread will be cut.
The sewing machine will stop in the 2nd position (thread take-up lever in upper
position).
–Check whether the thread take-up lever stands in its upper dead position.
–Normally, here ends the checking process. Should it be necessary to correct the
factory setting, proceed for programming the positions as follows.
6.10 Setting the positions
It is necessary to proceed to a new setting of the position transmitter after following
operations:
–Fitting the position transmitter when installing the special sewing machine
–Removing the position transmitter
–Replacing the position transmitter
–Replacing the complete drive controller
The digital position transmitter does not require any mechanical adjustments.
It is only necessary to set the reference position when taking the machine into service
for the first time.
The machine positions are sensed by steps (increments) by the position transmitter and
they are shown by the display. One rotation of the handwheel corresponds to 512 steps.
The change of the display is done by 2 steps. Achange from one display value to the
other corresponds consequently to a rotation angle of about 1,4°.
The angle position of the positions 1 and 2 in respect top the reference position is
defined by a certain number of increments.
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Programming steps:
1. Calling up programming mode
-Turn off main switch.
-Operate the key "P" and hold it operated.
-Turn on main switch.
The display will show "C-0000".
-Release the key "P".
2. Changing over to the technician level
-Enter code number "1907" by the digital keys "1...0".
-Operate the key "E".
The controller will change over to the technician level ".
The display will show the parameter no. "F-100".
-If a wrong code number is entered, the display will show "C-0000 Info F1".
Enter again.
3. Programming reference position
-Enter parameter number "170" by the digital keys "1...0".
-Operate the key "E".
The display swill show the parameter "F-170" together with the code designation
"Sr1" (Service routine 1).
The LED above the key "F" will be blinking.
-Operate the key "F".
The display will show "Position 0".
-Turn the handwheel until the reference position is attained (Needle point flush
with the throat plate level).
-Operate the key "P".
The position set will be memorised.
4. Programming position 1
-Enter parameter no. "171" by the digital keys "1...0".
-Operate the key "E".
The display will show the parameter "F-171" together with the code designation
"Sr2" (Service routine 2).
The LED above the key "F" will be blinking.
-Operate the key "F".
The display will show "Position 1" and the respective number of increments.
Pos1 = 151 , Pos1a = 200
-Turn the handwheel until the 1st position is attained.
5. Programming 2nd position
-Operate the key "E".
The display will show "Position 2" and the respective number of increments.
Pos2 = 460 , Pos2a = 510
-Turn the handwheel until the 2nd position is attained.
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