Operation Disturbances - Kemppi 3200 Operating Manual

3.

OperatiOn disturbanCes

By the operation or functional disturbances take the measures according to the following list.
If the disturbance cannot be eliminated, check the equipment according to the paragraphs
Installation and Maintenance, and take contact with Authorized Kemppi repair workshop.
the pump does not get started by test switch:
• check the fuse on the front plate of the cooling unit
• check the fuse on the rear plate of the power source
• check position for cooling mode selecting switch
• check positions for main switches
the water does not circulate by lever switch:
• check the tank filling volume
• disconnect the connector for the return water hose of the gun from the rear wall of the
cooling unit and use thet test switch
If the water is pumped, close the connector and run again by the test switch
A good tip: Blow compressed air into the tank; closing the filling opening by hand is enough.
the water is pumping, but does not return back to the tank or the return flow is
weak:
• filling of interconnection cable can take several minutes
• if you have lifted the gun or interconnection cable for the filling time many meters
higher than the power source, the filling will happen considerably slower. Fill the hoses
on the floor position.
• check the whole flowing line connector by connector
the water is pumping, but during welding the red pilot lamp for the water
pressure is lit and the equipment is stopped:
EN
• check the cooling water volume and return flow to the tank
• in the system are air bubbles or leakages, especially check the connections of the cooling
unit.
• the pressure switch set value (ca. 1 bar) is unsuitable for the gun you are using:
1. Open the side plate. In the middle at the upper end of the pressure guard connected to
the pump is the adjusting screw for limit value.
2. Use the pump during the adjustment by the test switch.
3. After ca. 5 s use twist the screw carefully until the pilot lamp is switched off.
4. Check the result by welding.
5. If the adjustment and checkings do not eliminate the disturbance, take contact with the
Authorized Kemppi repair workshop.
during welding the yellow pilot lamp for overheating is lit and the equipment is
stopped:
• release the trigger. When the lamp is switched off, the operation has been reset
automatically
• check if the gun is suitable for power you are using
• check condition of connectors and connections in the welding current circuit
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