ROTHENBERGER ROWELD D 4/15 Aero - Manual (Page 25)

ENGLISH 23
• 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.
• 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).
• The welding shoe including preheat nozzle can be rotated through 360° by releasing the set
screw (25). After rotating the welding shoe, tighten set screw (25) to fix the welding shoe in
place for the welding operation.
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.