Dohle ExOn1 DIG DX297.DIG Bedienungsanleitung Seite 23

Operating Instructions
DOHLE Hand Welding ExOn 1 DIG
Change of the welding shoe
In order to be sure that no more old welding rod is in the hand welding extrusion, heat up the
machine on operating temperature, remove the welding shoe and change the nozzle (note:
left hand thread!).
Note: with work on heated machine burn danger.
When the nozzle is changed drive for approx. 1 min. the new welding rod in the hand welding
extrusion.
Interruption of the welding
Do not leave the hand welding extruder unsupervised.
The air supply must remain maintained
Switch off the hand welding extruder
Bring the potentiometer of the air heater in position 0 and pull after ca.2 minutes the
power supply plug.
Note: Also after 15 minutes still exists on bright metal parts burn danger!
No water or other materials for accelerating the cooling procedure must be used. .
Maintenance
Before maintenance work on the equipment, pull power supply plug!
Maintenance work may be accomplished only by electrical specialists.
Consider the security chapter!
After approximately 500 operation hours the hand welding extruder, including the drive unit
must be cleaned, greased and controlled. These work may be implemented only by electrical
specialists.
Drive
The carbon brushes conductors of the drive must be examined approx. every 200 operation
hours and renewed if necessary.
Deep groove ball thrust bearing /barrel extruder
The deep groove thrust bearing and the barrel extruder should be cleaned approx. every
200 operation hours and again be greased
Note: Only high temperature grease can be used. Our art. no.: D-0581
DOHLE Extrusionstechnik GmbH 23