ROTHENBERGER ALLGAS 2000 Set - Handbuch (Seite 13)

ENGLISH 11
3.2 Operational description B
Connecting the torch:
Connect the torch to the cylinder regulators or with a central gas supply to the supply points
with the approved hose according to EN 559. Secure the connection with hose clamps. If leakage
is suspected, check using soapy water.
Lighting and regulating the torches: (using the valves on the torch)
Note: The torch works on the needle injector principle and the following
method of lighting it should therefore be adopted.
In order to assure safety, appropriate flashback arrestors should be installed.
Welding, brazing, heating, etc.:
1. Put an appropriate welding or heating attachment into the handle of the torch. Check that
the cone at the end of the attachment is intact.
2. Close both valves (D and E) on the handle.
3. If the regulator is fitted with a needle valve, this should be opened. Set the recommended
working pressure by using the regulator's pressure adjusting screw. The same applies to
supply points if a gas pipeline is used.
4. Open the oxygen needle valve (D) on the handle and allow the gas to purge the hoses for a
short time. Long hoses and small welding nozzles require a longer purge time. Maintain a
small gas flow.
5. Open the torch fuel gas valve (E) on the handle and allow the gas to flow for a short time.
Purge as above.
6. Light the torch.
7. Regulate the size and type of flame with the valves (D and E) on the handle. The torch is
now ready for use.
Extinguishing the flame: Welding, brazing, heating, etc.
First close the fuel gas valve (E) on the handle and then the oxygen valve (D).
3.3 Accessories
The relevant accessories and an order form can be found from Page 14 onwards.
4 Operating
1 Cylinder valve for fuel gas 13 Fuel gas hose
2 Cylinder valve for oxygen 14 Oxygen hose
3 Cylinder pressure regulator for fuel gas 15 Torch handle
4 Cylinder pressure regulator for oxygen 16 Adjustment valve for fuel gas
5 Pressure adjusting valve fuel gas 17 Adjustment needle valve for oxygen
6 Pressure adjusting valve for oxygen 18 Connection nut
7 Shut-off valve for fuel gas 19 Welding, heating or brazing attachment
8 Shut-off valve for oxygen 25 Regulator mounted flashback arrestor
for a single cylinder for oxygen
9 Tapping point valve for fuel gas 26 Regulator mounted flashback arrestor
for a single cylinder for fuel gas
10 Tapping point valve for oxygen 27 Tapping point flashback arrestor for
oxygen
11 Tapping point pressure regulatorf or
fuel gas
28 Tapping point flashback arrestor for fuel
gas
12 Tapping point pressure regulator for
oxygen