ROTHENBERGER ROWELD D 8/30 Aero User Manual
Page 25
ENGLISH
23
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Position handle
Loosen handle and move it to the ideal working position by pushing it back and forth. The
handles of these hand extruder models can also be swivelled upward and downward.
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Mount welding shoe
– Select the welding shoe required for the specific weld geometry or machine a welding
shoe blank to the required geometry.
– Observe DVS 2207 Guideline, Part 4 for machining welding shoe blanks.
– Mount welding shoe to the hand extruder in the position required for welding.
Observe welding direction!
– Tighten set screw (25).
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Mount preheat nozzle.
– Select and mount the preheat nozzle (4) required for the specific weld geometry.
– Observe spacing A = 5 mm.
– Tighten the preheat nozzle using set screw (25.1).
Table: Preheat nozzle
Care must be taken to ensure that the preheat nozzle provides intensive and uniform preheating
(melting) of the base material over the entire joint width at as low a hot air temperature as possi-
ble. For larger weld seam widths, a wider preheat nozzle is available as an accessory.
5.3
Starting the hand extruder
Observe section “Safety“.
•
Never operate the hand extruder without air supply. Otherwise the unit may suffer
severe damage.
•
Before plugging in the mains connector, check that the drive unit is not set to
continuous operation.
•
The hot air hood must be in place.
•
Plug in mains connector.
•
In the case of the hand extruder with integrated air supply, the blower must start
automatically.
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Once air exits the preheat nozzle (4), the heating systems for the air/melt tem-
peratures may be activated.