Trouble-Shooting - Rothenberger ROWELD D 4/15 Aero Instrucciones De Uso

– to have all maintenance, inspection and mounting work carried out by authorized and quali-
fied personnel who are familiar with the operating instructions,
– to always shut off the unit before carrying out any work on it,
– to remount and reactivate all safety and protective devices immediately after completion of
the maintenance/repair work.
During maintenance and repair work, make sure that the hand extruder and its individual com-
ponents are firmly positioned.
In addition to the operating instructions and the national and local accident prevention regula-
tions applicable at the place of use, the acknowledged technical rules for safe and proper work-
ing practices must be observed.
Any working practices posing a safety risk are prohibited.
Activities other than those described in this section may only be performed at the
Manufacturer's workshops!
• After approx. 500 operating hours, the hand extruder including drive unit must be
thoroughly cleaned and inspected. This work may only be carried out at the manufacturer's
workshops.
• Cables, switches, plug-in connections must be inspected by qualified staff every
three months (requirement according to VBG4); the inspection results must be documented.
7

Trouble-shooting

The following table lists potential operating upsets of the hand extruder, possible causes and
their remedies (fault diagnosis chart).
Should malfunctions occur which are not covered here or which cannot be traced back to the
cause stated, please contact ROTHENBERGER Werkzeuge GmbH.
Malfunction
Drive motor does not start
Drive motor switches off
No welding rod feed
No extrudate conveyed out of welding shoe
Extrudate output decreases during operation
No air supply
Integrated air supply without function
No hot air
Extruder does not heat up
Temperature above preset range
Controller fluctuates
Fault No.
1
2
3
5
8
28
Possible causes
Smaller or too small a welding rod
diameter
Temperature sensor defective
Temperature controller defective
Cable connections defective
Hot air temperature below start inter-
lock temperature
Fault No.
5, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 23
5, 8, 9, 14, 15, 16, 17, 18, 19, 23
1, 16, 17, 20
1, 16
1, 14, 16
13
5, 22
2, 3, 5, 18, 22
2, 3, 22
2, 3, 18, 19
3, 13,19
Remedies
Use larger welding rod diameter, if
necessary
1)
1)
Check cable connections.
Allow hand extruder to heat up
ENGLISH
1)