Kemppi Promig 540R - Manual (Page 13)

12 – Promig 540R, Promig 120R/0425
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KEMPPI OY Promig 540R, Promig 120R/0423 – 13
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KEMPPI OY
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, power source should be switched on and gun
switch pressed simultaniously.
Close bottle valve after having finished welding. If the machine will be out of use for a long
time, unscrew pressure regulation screw.
3.8. MAIN SWITCH I/O
When you turn the main switch of PRO power source into position I, pilot lamp next to it is
lit and the equipment is ready for welding. The equipment reverts to the welding method used
before the main switch was turned to position zero.
Always start and switch off the machine with the main switch, never use the
mains plug as a switch.
3.9. OPERATION OF COOLING UNIT
(PROCOOL 10, PROCOOL 30)
Operation of cooling unit is controlled so that pump is turned on when welding is started. After
welding stop pump is rotating for approx. 5 min, thus cooling the liquid to ambient temperature.
Read in operation instructions for cooling unit the trouble situations in liquid circulation system
and protection against damage of gun etc.