Eitorfer Strasse 1
D – 53809 Ruppichteroth
www.dohle-extruder.de
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
We retain all copyrights of all descriptions, drawings and schedules contained in these
operating instructions which may not be reproduced nor be made accessible by third parties
or by competitors, neither in whole nor in part, unless we have expressly consented thereto.
Before start-up these operating instructions must be examined carefully because we will not
assume any liability for any failures resulting from improper use. No warranty claims will be
accepted if the hand-held welding and extruding machine has been modified unless this has
been done in consultation with the manufacturer/ supplier.
The appliance is not to be used by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have
been given supervision or instruction.
Children must be supervised not to play with the appliance.
The extruder shall be used for extrusion weld works only !
These operating instructions should always be accessible by the operator.
For after-sales service and orders please contact:
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
1. Type
Article-no. / Type of machine : DX306 ExOn3A / DX314 ExOn3A-5
Machine no. : .........
Required voltage : 230 V / 50 – 60 Hz
Heating unit : 3500W/15A
Processing of : PE, PP
2. Safety
Pursuant to section 55 of VDE 0 100 (Regulations of the Association of German
Electrotechnical Engineers), the extruder must be operated using a protective switch or an
isolation transformer. Always keep extruder dry!
Operating hand-held welding and extruding machines is subject to applicable national
regulations. Observe applicable regulations for the prevention of accidents as well as
technical rules for safe and professional operation.
Directive 92/ 57/ EWG dated June 24, 1992, shall be applicable by analogy.
Utilisation:
Hand-held welding and extruding machines are manufactured according to the latest state of
the art and in compliance with safety requirements.
Any improper use may result in dangers for the operator or third parties or may adversely
affect machines and assets.
Only use hand-held welding and extruding machines if in technically perfect condition and for
the purposes for which they are intended while observing the operating instructions.
The manufacturer / supplier will not accept any liability for any failure to comply with the
above or for damages resulting there from.
Any utilisation of the hand-held welding and extruding machine for other purposes than those
for which it is intended is subject to the consent of the manufacturer / supplier.
Work on electrical parts of the hand-held welding and extruding machines may only be
performed by an electrical engineer in compliance with electro-technical rules.
Special risks:
All hand-held welding and extruding machines may only be held and operated using the
handles provided for this purpose.
A risk of burning exists on all uncovered metal parts. Avoid contact with these parts
because they may achieve temperatures of up to 350 °C.
Caution: Heat can reach combustible materials!
Safety area:
The hot air stream of the hand-held welding and extruding machine may not be directed to
temperature-sensitive objects or living things. Ensure that a safety distance of 2m is
observed in all directions.
Don’t concentrate the heat stream long time on the same area.
DOHLE Extrusionstechnik GmbH 17
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
Operation:
Never use hand-held welding and extruding machines without air supply.
In case of external air supply ensure that the feed line is of sufficient size.
The pressurised air that is supplied must be free of oil and water.
Overhead work:
When working overhead always wear appropriate safety devices (such as helmet,
savety glasses, etc.).
Safety:
Check for correct nominal voltage before connecting the hand-held welding and extruding
machine to the mains voltage.
Mains voltage must be identical to the nominal voltage shown on the type plate of the handheld welding and extruding machine.
Pursuant to sec. 55 of VDE 0 100 the hand-held welding and extruding machine must be
operated using a protective switch or an isolation transformer.
Extension cords:
When using extension cords the minimum diameter of cables must be observed.
Length up to 18 m: diameter 2.5 mm²
Length up to 50 m: diameter 4.0 mm²
Extension cords must be approved and marked for their place of utilisation.
Stop operating the hand-held welding and extruding machine if:
- connecting line or plug have been damaged
- safety installations have been damaged
- foreign objects or liquids have entered the hand-held welding and extruding machine
- changes occur in the operating state
Never spray water on hand-held welding and extruding machines
(risk of short circuit)
Never use hand-held welding and extruding machines in hazardous or inflammable
areas.
To park the tool:
To save the stand, click the machine base out and put the
tool on the three points (machine base – handle drive unit –
pivoted handle).
Make sure that the machine base to the pivoted handle is in
angle of 90°.
°
0
9
.
a
c
DOHLE Extrusionstechnik GmbH 18
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
3. Start-up
General:
Observe the notes on safety contained in these operating instructions. In addition, the
regulations on the prevention of accidents and the national regulations shall apply.
Assembling the hand-held welding and extruding machine
Our hand extruders are largely fully assembled ready for accommodated.
Weld shoe
The machine is supplied with one weld shoe blank which can be machined to suit your
requirements.
Note: please observe guideline DVS 2207 part 4.
If you indicate your required form of seam and thickness of plates we will supply one weld
shoe machined ready for use.
Start-up of hand-held welding extruder
Observe the Safety chapter of this manual.
Before plugging in the power cord, please check that
- The heating is switched off at the air heater
- The engine is not set for continuous adjustment
- Plug in the power cord
Enter the power cord into an AC outlet (230V, 16A), use only easily accessible electrical
outlets, you represent now the on - off
the heater switch on the ON position.
The machine heats now on to the last selected setpoint temperature.
To change the temperature, they change the setting of
Potentiometer on the heat gun.
The hand extruders exon 3A has a bi-metal cold start protection, the
Device only partially protects against major damage. Always observe the longer
Heat-up times and minimum temperatures of the materials to be processed.
Incorrect operation has a fraction of the screw or the transmission of
Follow.
Warranty claims that are due to incorrect operation cannot be claimed
Caution: Observe minimal heat time of 20min.
Let the appliance unattended while it is operating.
DOHLE Extrusionstechnik GmbH 19
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
Change of the welding shoe
In order to be sure that no more old welding rod is in the hand welding extrusion, heat up the machine on operating temperature, remove the welding shoe and change the nozzle (note:
left hand thread!).
Changing the welding filler
Heat up the hand-held welding and extruding machine until operating temperature is
reached to ensure that no welding filler is present in the machine, remove the weld
shoe and exchange the die (caution, left-handed thread) by a new one or by a die
used with the material to be applied now.
Note: with work on heated machine burn danger.
When the nozzle is changed drive for approx. 1 min. the new welding rod in the hand welding
extrusion.
Interruption of the welding
Do not leave the hand welding extruder unsupervised.
The air supply must remain maintained
Switch off the hand welding extruder
Bring the potentiometer of the air heater in position 0 and pull after ca.2 minutes
the power supply plug.
Note: Even after 15 minutes still exists burn danger on bright metal parts.
No water or other materials for accelerating the cooling procedure must be used.
Maintenance
Before maintenance work on the equipment, pull power supply plug!
Maintenance work may be accomplished only by electrical specialists.
Consider the security chapter!
After approximately 300 operation hours the hand welding extruder, including the drive unit
must be cleaned, greased and controlled. These work may be implemented only by electrical
specialists.
Drive
The carbon brushes conductors of the drive must be examined approx. every 120 operation
hours and renewed if necessary.
Deep groove ball thrust bearing /barrel extruder
The deep groove thrust bearing and the barrel extruder should be cleaned approx. every
120 operation hours and again be greased. (Note: Only high temperature grease can be
used.)
DOHLE Extrusionstechnik GmbH 20
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
4. Drawings, Informations
DX306 ExOn3A, DX314 ExOn3A-5
D - 1728
D - 2014
D - 1729
D - 2063
D - 1630
D - 0864
D - 1630
D - 1771
D - 0632
D - 1771
D - 1319
D - 0567
DV 131
D - 1320
DB 044
D - 1748
D - 1749
D - 1769
D - 1793
D - 1513
D - 1512
D - 0688
D - 0690
D - 1778
D - 0854
D - 1744
D - 1742
D - 1772
D - 1768
D - 0042
D - 1636
DOHLE Extrusionstechnik GmbH 21
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
article-nodescriptionqty
D - 0012feather key1
D - 0042air die multi fix 32mm1
D - 0632screw M5x654
D - 0680compression spring handle1
D - 0687link1
D - 0688link joint 1502- 30021
D - 0690ball button 1502 - 60021
D - 0726ball1
D - 0727press sleeve 3x161
D - 0845screw M5x62
D - 0854handle1
D - 0864screw 2.9x6.5 DIN 79814
D - 1302Potentiometer scale Micro1
D - 1319temperature switch T10B1
D - 1320Eron Extruder ExOn3A1
D - 1512worm ExOn31
D - 1513worm ExOn3-5mm1
D - 1630control box ExOn3A1
D - 1636die ExOn3A1
D - 1728angle screwed cable M16x1,51
D - 1729phase angle control1
D - 1742cylinder ExOn3A 4mm1
D - 1744cylinder ExOn3A 5mm1
D - 1748flange ExOn2-41
D - 1749indentation1 ExOn2-41
D - 1768burner pipe ExOn3A1
D - 1769deep groove ball bearing 61904 2Z ISB1
D - 1771screw M5x168
D - 1772screw M4x6 T20 DIN79852
D - 1778axis ExOn2-61
D - 1793indentation2 ExOn2A+3A1
D - 2014potenziometer 100k1
D - 2050screwed cable buckelproofed PG111
D - 2063main cable 8m1
DB 044drive unit BSM 275, 230V, 1400W1
DV 131screw M4x8 T20 DIN79851
DOHLE Extrusionstechnik GmbH 22
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
D-1320 Eron 230V/2300W
6600602
6101242
6600611
66006166113695
6106186
6100263
6600608
61002686100444
6600622
6600609
6600606
66006366600638
6100284
6600614
6600637
66006126101760
6100287
6600616
51012706600613
5113268
DOHLE Extrusionstechnik GmbH 23
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
article-Nodescriptionqty
5101270gasket 70x48x41
5113268heating element 230V/2200W1
6100263potentiometer knob red1
6100268strain relief1
6100284countersunk screw M4x12 TX3
6100287hexagon nut M51
6100444cord guard 9,6x751
6101242connecting shackle1
6101760mica tube 47,6x951
6106186rocker switch1
6113695temperatur limit switch 135°C1
6600601air filter1
6600602handle1
6600606motor 230V SL1
6600607carbon brush2
6600608potenziometer 10KOhm1
6600609electronic circuit board 230V1
6600610triac 25A/800V2
6600611PT fillister head screw M3x8 TX8
6600612rubber ring1
6600613turbine housing lower part1
6600614stripper1
6600615phototransistor1
6600616countersunk screw M3x10 TX4
6600622fillister head screw M4x10 TX2
6600636turbine1
6600637turbine1
6600638turbine housing upper part1
DOHLE Extrusionstechnik GmbH 24
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
Spare Parts Drive Unit
DB044
DOHLE Extrusionstechnik GmbH 25
Operating Instructions
DB047
1
Gear BSM 275
DB049
1 Idler 8Z
DB050
1
Gearwheel 26
Z
DB006
1
Flat Gasket
DB007
2
Cylinder Pin 4m6, 6x16 DIN7
DB0
43 1 Engine Flap
DB0
51 1 Ball Bearing 6201 2
RS
DB0
52 1 Armature Winding BSM 275
DB011
1
Ball Bearing 608
-2Z
DB0
53 2 Raised Head Screw
M4x100 DIN84
DB0
54 1 A
ir Ring
DB014
2
Insulating Plate
DB017
4
Spring Washer M5 DIN 7980
DB0
56 1 Cheese Heat Screw M5 x 8
5 DIN 912
DB019
2
Cheese Heat Screw 2,9 x 9,5 DIN 7971
DB022
1
Raised Head Screw 3,9 x 19 DIN 7981 G
DB023
1
Handle BSM 270 green
DB025
1
Stopper
DB027
1
Raised Head Screw 3,9 x 25 DIN 7981 G
DB028
1
Raised Head Screw 3,9 x 13 DIN 7981 G
DB029
1
Handgrip Black
DB030
1
Switch ON
-
OFF
DB0
48 1 Ball Bearing 626
-2Z
DB034
1
Shaft BSM 270
– 280
DB036
1
Drive Unit BSM 270, 230 V, 800 W, green
DB03
7 1 Capacitor 2007 BSM 270
DB0
55 1 Field 230 V
DB039
1
Motor Case Green
DB040
2
Carbon Holder BSM 270
DB041
2
Carbon Brush BSM 270
DOHLE Hand Welding Extruder ExOn3A
Art.No Qty Description
DOHLE Extrusionstechnik GmbH 26
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A
DOHLE Extrusionstechnik GmbH 27
Operating Instructions
DOHLE Hand Welding Extruder ExOn3A