ROTHENBERGER RE 17 Dreigas-Anlage AMS 5/5 - Manual (Page 17)

ENGLISH 13
Flame cutting nozzles
Nozzle Cutting size Article-No. Oxygen
pressure Acetylene-
pressure
Size [mm] [bar] [bar]
1/32 3- 6 3.5341 2,0
3/64 6- 20 3.5344 2,5
1/16 20- 75 3.5345 3,5
≥ 0,5
3
Functions
3.1 Overview A
1 Acetylene cylinder 8 Twin tubing bundle 15 Cutting nozzle
2 Oxygen cylinder 9 MAXIGAS 400 16 Torch key
3 Acetylene cylinder
welding regulator 10 RE17 handle 17 Gas control valve
MAXIGAS
4 Oxygen cylinder
welding regulator 11 RE17 wing lever 18 Tube adapter
MAXIGAS
5 Transport carriage 12 RE17 welding inserts 19 Safety lighter
6 Rubber caps red 13 Nozzle cleaner 20 Replacement flints
7 Rubber caps blue 14 Heating nozzle
3.2
Operational description B
Welding with high-performance welding nozzles:
Basically, the welding flame should burn neutrally (the gas mixture is balanced), and its size
should be adjusted to the material thickness, the weld shape, the welding position and the
heat conductivity of the material.
When welding steel at greater thicknesses, open both valves wide, and when welding thinner
welding steel plates close the valves somewhat.
Preheat the material and welding rod. As soon as the metal begins to melt on both sides of
the seam, introduce the welding rod. Make sure that the welding area heats evenly. Run the
burner in half circles around the welding rod.
Brazing:
Clean the connecting surfaces polish them and round off the edges. Preheat the brazing
area. Place the tip of the soldering rod onto the soldering area, melt a drop of solder, and
spread it under constant flame movement.
Torch cutting:
Î Select the torch cutting nozzles (23) according to the workpiece thickness (refer: technical
data) and then screw them until leaktight into the torch tip of the cutting attachment (20) or
hand held cutting torch (15).
Î Using a suitable wrench tighten firmly the nozzle retaining nut in the torch tip. Use clean,
undamaged ROTHENBERGER original torch cutting nozzles only. Make sure that the sealing
surfaces on the nozzles and torch tip are in perfect condition.
Adjusting the operating pressures
Î
First, keep the adjustment valves for oxygen and fuel gas (16 and 17) on the handle or hand-
held cutting torch closed.
Î Slowly open the cylinder valves (1 and 2) or the tapping point valves in the distribution line (9
and 10).