ROTHENBERGER ROWELD D 4/15 Aero Basic - Manual (Page 26)

24 ENGLISH
• For the operation of the temperature controller, see section 5.5 ”Set temperatures“. For tem-
perature settings, see page 26.
The hand extruder will reach its operating temperature after about 10 to 15 minutes.
Hold the hand extruder only on the handles provided for this purpose.
• The melt temperature must have reached the preset start interlock tempera-
ture for the startup timer to be activated. After the startup timer has timed out, the start inter-
lock will be released and the extruder can be started.
5.4 Welding with the hand extruder
Observe section “Safety” and the data sheet.
General:
Welding is to be carried out in accordance with the guidelines of the German Association for
Welding Technology (Deutscher Verband für Schweißtechnik DVS).
The parts to be joined and the welding rod must be clean and dry.
5.4.1 Introducing the welding rod
• The hand extruder is provided with a bore for introducing the welding rod.
5.4.2 Replacement and aging of welding rod
• If the welding rod is to be replaced, make sure that any remaining rod in the hand extruder is
completely removed.
• For this purpose, operate the preheated hand extruder with the new welding rod until clean
new material discharges.
• The DVS guideline also recommends this procedure for hand extruders which have been
out of service for prolonged periods while still being filled with welding rod.
Ensure safe and environmentally compatible disposal of any waste generated!
5.4.3 Welding direction / rate
• The pressure of the discharging extrudate causes the welding shoe (and hence, the hand
extruder) to move in welding direction.