Ordinary Maintenance - Helvi GLOBUS 175HF Manual De Uso

Potentiometer (9) and the gas will flow for the time selected thru the Post Gas Time
Potentiometer (10) (Phase B).
4 TIMING (4T)
By pressing the torch trigger the gas flow starts and the arc ignitiates. When the arc
is struck the output current reaches the value adjusted thru the main current
potentiometer on the front panel (8) (Phase A). By releasing the torch trigger the arc
won't break allowing the operator to weld for a longer period (Phase B). By pressing
again the torch trigger the arc will break, the welding current will decrease depending
on the value set thru the Down Slope Time Potentiometer (9) and the gas will flow for
the time selected thru the Post Gas Time Potentiometer (10) (Phase C).

13.0 ORDINARY MAINTENANCE

BEFORE CARRY OUT ANY MAINTENANCE, UNPLUG THE MACHINE FROM THE
MAINS POWER SUPPLY AND WAIT 5 MINUTES BEFORE OPENING IT.
The efficiency of the welding system over time is directly related to the frequency of
maintenance jobs, such as:
For welding machines only need to be taken care inside. The dustier the working
environment is, the more often this should be done.
- Take off the lid.
- Remove all traces of dust in the inner parts of the generator with a jet of compressed
air at a pressure under 3Kg/cm.
- Check all electrical connections, making sure that nuts and screws have been
firmly tightened. Do not delay in replacing worn-out parts.
- Put the lid back on.
- After completing the above operations, the generator is ready to be restarted
following the instructions given in this manual.
CAUTION!!!