Kemppi 5001 Master - Manual (Page 12)

12 – MASTER 5001/0541 © KEMPPI OY
4.3. REGULAR MAINTENANCE
Kemppi service repair shops 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
– meter checking
– checking of mains cable and plug
– damaged parts of 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.
5. OPERATION DISTURBANCES
In case of problems contact the Kemppi works in Finland or your Kemppi dealer.
Check the maintenance objects before the machine is sent to the service repair shop.
Operation of the overload protection
Yellow pilot lamp H12 of thermal protection is lighted when thermostat has operated due to
overheating of machine.
The thermostat of machine will operate, if machine is continously loaded over rated values or
cooling air circulation is blocked.
Cooling fan cools down the machine and when the pilot lamp is not lighted the machine is
automatically ready for welding.
Control fuses
Fuse F11, 1,0 A delayed, on the rear wall of machine is as protection for connection of auxiliary
devices X14.
Use same type and rating of fuse which is marked beside the fuse adapter. Damage caused by a
wrong type of fuse is not covered by the guarantee.
Under- and overvoltages in the mains supply
Primary circuits of machine are protected against sudden, transient overvoltages. Machine is
designed to withstand 3 x 440 V voltage continously. See to it that voltage is kept within admissible
limits especially when mains supply is taken eg from combustion engine generator. If the mains
has undervoltage (under ca. 300 V), machine control stops automatically.