KEMPPI WELDFORCE KPS3500 / 0520 – 9
© KEMPPI OY
3.3. OPERATION OF COOLING FAN
– The fan is started for a moment when main switch is placed into position I.
– The fan will start during welding as the machine heats up and it will run for 1 to 10 minutes
after the welding has stopped.
– On no-load fan is started in intervals of approx. half an hour for minute’s time.
4. MANUAL METAL ARC WELDING
The Kemppi WeldForce power source can be used in electrode welding by connecting a Kemppi
WeldForce KWF200S wire feeder to it. The power source can be made suitable for electrode
welding without a wire feeder by connecting an R10 or R20 remote control to the X14 or X15
terminal at the back of the power source for welding current adjustment, and the welding power
cable connected to the power source’s (+) connector X11 or X12.
5. MAINTENANCE
The amount of use and the working environment should be taken into consideration when planning
the frequency of maintenance of the machine. Careful use and preventive maintenance will help
to ensure trouble-free operation.
5.1. CABLES
Check the condition of welding and connection cables daily. Do not use damaged cables.
Make sure that the mains cables in use are safe and according to laid down regulations.
The repair and mounting of a mains connection cable should be carried out only by an authorised
electrician.
5.2. POWER SOURCE
Note! Disconnect the plug of the machine from the mains socket and wait approx. 2
minutes (capacitor charge) before removing the cover plate.
Check at least every half year:
– Electric connectors of the machine - clean the oxidised parts and tighten the loosened
ones.
– Note! You must know correction tension torques before starting the reparation of the
joints.
– Clean the inner parts of the machine from dust and dirt e.g. with a soft brush and vacuum
cleaner. Also clean the ventilation net behind the front grate.
– Do not use compressed air, there is a risk that dirt is packed even more tightly into gaps of
cooling profiles.
– Do not use pressure washing device.
– Only authorised electrician shall carry out repairs to the machines.
5.3. REGULAR MAINTENANCE
Kemppi Service Workshops make regular maintenance according to agreement.
The major points in the maintenance procedure are listed as follows:
– Cleaning of the machine
– Checking and maintenance of the welding tools
– Checking of connectors, switches and potentiometers
– Checking of electric connections
– Checking of mains cable and plug
– Damaged parts or parts in bad connection are replaced by new ones
– Maintenance testing. Operation and performance values of the machine are checked, and
adjusted when necessary by means of test equipment.
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