Main Switch I/O Of Pro Power Source; Operation Of Cooling Unit (Procool 10, Procool 30) - Kemppi Promig 300 Operation Instructions Manual

7. Open bottle valve slowly. Gas bottle pressure meter (F) shows the bottle pressure.
Note! Do not use the whole contents of the bottle. The bottle should be filled when the
bottle pressure is 2 bar.
8. Open needle valve if there is one in the regulator.
9. Turn regulation screw (B) until hose pressure meter (G) shows the required flow
(or pressure). When regulating flow amount, the power source should be in switched on and
the gun switch pressed simultaniously.
Close bottle valve after having finished welding. If the machine will be out of use for a long
time, unscrew the pressure regulation screw.

2.2.11. Main switch I/O of PRO power source

When you turn the switch into I-position, pilot lamp on the front face is illuminated, and the
machine is ready for use. The equipment is returned to that welding method with which the wel-
ding was last carried out before the main switch was turned to zero position.
Always turn the machine on and off with the mains switch, never use the mains plug as a
switch!

2.2.12. Operation of cooling unit (PROCOOL 10, PROCOOL 30)

Operation of cooling unit is controlled in such a way that pump is started when welding is
started. After the welding has stopped the pump is rotating for approx. 5 min cooling the liquid
to ambient temperature. Purpose of this operation is to make maintenance intervals of pump
longer.
Read in operation instructions for the PROCOOL 10/30 unit the trouble situations of the liquid
circulation system and protection against gun etc. damage.
14 – PROMIG 200, PROMIG 300 / 0537 © KEMPPI OY