Adler 8967 Operating Instruction

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Preface and General Safety Information
Part 1: Operat ing Instruc tions Cl. 8967
1. Product Description
1.1 Sho rt Description an d Pro per U se . . . . . . . . . . . . . . . . . . . . . 5
1.2 Sub -Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Technic al Specif icat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Operating Elements and Their Function
2.2 Elements on the Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Operating the Sewing Machine
3.1 T hreadin g the Nee dle Th read . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Winding the Bobbin Thread . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Cha ngin g the Bobbin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Setting the Bobbin Thread Tension . . . . . . . . . . . . . . . . . . . . . 14
3.5 Setting the Thread Regulator . . . . . . . . . . . . . . . . . . . . . . . . 15
4. Operating the Frame
4.1 Fol ding Down the Table Top . . . . . . . . . . . . . . . . . . . . . . . . . 16
GB
5. Maintenance
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1. Product Description
1.1 Short Description and Proper Use
The special sewing machine 8967 is a single needle-double lock stitch free-arm machine with l ower transpor t without stroke and an upper t ransport with al ternating pressure feet. The machine is designed and may only be used for sewing of textile material or leather.
1.2 Sub-Classes
8967-160180 Execution without thread trimm er, 8967-160182 Execution with electromechanical
1.3 T echnical Specif ication
Needle system: System 2134-35 Max. number of stitches:
dependent on pressure foot stroke 2000, 3000 rpm and stitch length
Maximum stitch length: forward (F), reverse (R) 6 (F); 6 (R) mm
Pressure foot stroke: 2 - 7 mm Maximum clearance under
the pressure feet: When sewing: 10 mm When raised in needle high posit i on: 17 mm
Maximum thread thickness: Cotton: 9/3 Synth. endless: 15/3 Nm Core thread (poly-cotton): 20/3 Nm
Through-feed area: 281 x 135 mm Free arm diameter 47 mm Operating pressure: 6 Line pressure: 7 - 10 bar Air consumpti on per work cycle: 0.15 NL
Pressure foot lift electropneumatic. thread trimmer for needle and
bobbin thread, electropneumatic, automatic interlock and pressure foot lift.
+
/- 0.5 bar
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2. Operating Elements and Their Function
2.1 Elements at the Sewing Head
Element Function
1 Pressure foot screw - This screw is screwed in completely at the factory
2 Thread regulator - Setting the correct thread quantity for different
3 Control knob - Setting auxiliary tension for the needle thread. 4 Lever - Opening the main needle thread tension and
5 Control knob - Setting the main tension for the needle thread 6 Lever - Switching the auxiliary tension on and off.
7 Adjustment wheel - Setting the pressure foot stroke. 8 Lever - Bobbin thread winding device 9 Viewing glass with - Show the oil level in the reservoir.
11 fill opening The oil level must be kept above "MIN".
10 Control knob - Setting the stitch length for sewing forwards. 12 Control knob - Setting the stitch length for sewing in reverse. 13 Hand le ver - Continuous ad j ustment of the s titch length between
14 Lever - Determining the status of the main needle thread
15 Needle
and the position may not be changed.
material thicknesses, sewing yarns and stitch lengths.
auxiliary needle thread tension.
Pull the lever to the right before switching over in or­der to free it from its catch.
If necessary fill Esso "SP NK 10" up to the "MAX" marking in the reservoir.
the set forward and revers e stitch length s.
tension during pressure foot lift. Lever up: Tension open. Lever down: Tension closed.
Caution!
Be sure to turn off the main switch when threading or replacing the needle. Risk of Injury.
16 Knob - Arresting the pressure foot in the raised position.
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56 7
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10
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2.2 Elements on the Frame
Element Function
Frame Type MG 55-3
1 Main switch - Switching the machine on and off 2 Pedal
Rest position - No function Position forward - Sewing with desired rpm Position "hal f back" - Raise pressure foot when machine at rest Position "fu l l back" - Thread trimming and raise pressure foot
3 Screw - Setting the Table Top Height.
Frame Type MG 56-2
4 Main switch - Switching the machine on and off 5 Pedal
Rest position - No function Position forward - Sewing with desired rpm Position "hal f back" - Raise pressure foot when machine at rest Position "fu l l back" - Thread trimming and raise pressure foot
6 Lever - Securing th e raised table top half 7 Brace - For supporting the lowered t able top in the
horizontal position.
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76 5 4
MG 55-3
123
MG 56-2
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Maintenance Unit 8 Air filter and - Bef ore the water level reaches th e filter, screw in
water trap screw 7 far enough to drain water.
9 Pressure regul ator - To set to 6 bar pu l l t he bushing 10 up and turn appropri ately.
not
interrupt t he compressed ai r supply.
Do
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3. Operating the S ewing Ma chine
3.1 Threading the Needle Thread.
Caution Risk of Injury !
Turn off the main switch before threading.
Thread the needle thread as shown in the illustration.
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3.2 Winding the Bobbin Thread
Place the bobbin 4 on the bobbin winder 3.
Pull the thread through the guide 1 and the tension 2.
Wind the thre ad approx. 5 x clock wise around the bobbin core a nd tear off at th e t hread clamp 6.
Press the bobbinr lever 5 into the bobbin.
Sewing The bobbin wind er lever stops the procedure when the bobbin is full.
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2
3 4 5
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Attention !
If the thread is not to be wound during sewing, the pressure foot must be arrested in the raised position and the pressur e f oot stroke set at the smallest value.
3.3 Changing the Bobbin
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6
1
2
Caution Risk of Injury!
Turn off the main switch before changing the bobbin.
Bring the needle into the hi ghest position
Pull the covering cap 1 from the free-arm.
Remove the bobbin housing 2 with bobbin 3. Hereby raise the bobbin case flap 4 as far as possible.
Remove the bobbin
Insert a full bobbin in such a way that, when the thread is pulled off, it turns in the direction shown in the illustration.
Pull the thread through the slit 7, under the spring 6 to the hole 5.
Insert the bobbin case with bobbin as far as possible into the bobbin case base and release the bobbin case flap. For security press in the bobbin case with your index finger and make sure that the bobbin case flap has caught.
Push on the covering cap 1.
4
5
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3.4 Setting the Bobbin Thread Tension
2
1
Caution Risk of Injury!
Turn off main switch.
Bring the needle into the highest position
Pull the covering cap from the free-arm
Remove the bobbin housing with bobbin. Hereby raise the bobbin case flap as far as possible.
Carefully turn the regulating screw 1. To the right = Increase thread tension To the left = Decrease thread tension
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The initial setting for the tension spring 2 is: The bobbin housi ng must slowly lower through its own weight. ( see sketch)
Insert the bobbinn case with bobbin as far as possible into the bobbin case base and release the bobbin case flap. For security press in the bobbin case with yo ur index finger and make sure that the bobbin case fl ap has caught.
3.5 Setting the Thread Regulator .
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With the thread regulator the needle thread quantity necessary fo r stitch formati on can be regul ated. The setting is dependent on the stitch length, material thickness an d the yarn characteristics.
Only a precisely set thread regulator assures an optimal sewing resu l t.
The needle thread loop should glide over the hook without excess with little tension.
In the "0" setting the greatest thread quantity is released, such as is requi red by particularly great stit ch length and very thick material.
Adjustment:
Loosen screw 1 .
Change the position of the thread regulator appropriately.
Retighten screw 1.
Note
With a correct setting the thread check spring is pulled approx. 1 mm down from its upper end position when the needle thread loop passes the maximum hook circumference. The 1 mm dimension is a guideline. Depending on the thread check spring tension it can be greater or smaller.
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4. Operating the Frame
4.1 Folding Down the Table Top (only F rame MG 56-2)
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3
1/ 2
Caution Risk of Injury!
Hold the table top with both hands when pulling down.
Release the table top fasten ers 1 and 2 under the table top and f astener 3 on the left frame leg.
Pull down the table top with both hands as shown in the illustration.
Lock the diagonal brace 4 into t he mounting.
Fold up the table top in the reverse order.
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5. Maintenance
Caution Risk of Injury!
Turn off main switch.
Maintenance work must be co nducted at the latest after the number o f operating hours listed in the column " Interval". Shorter maintenance intervals may be required when working with very linty materials.
Procedure Interval Remarks Head
Removal of lint 8 Particularly in following areas: accumulations Underside of t he stitch bed
Check the oil level in both reservoirs 40 see subject 2.1
Maintenance Unit
Clean insert in the 9 air filter (page 10) 500
Transporter stays Area around the hook Bobbin housing top
Element 9 and 11
Caution!
Interrupt the compressed air supply and vent the system.
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