pei-POINT INVERTER AS25-13K Wartungsanleitungen Seite 21

Compressed air circuit
check for any air leaks
check line pressure, welding pressure, force on the electrodes
empty the air line filter
check lubricator oil level (if there is one)
Mechanical parts
lubricate the cylinder rod
check tightness of the components: cylinder, arm holder, arms, electrode holder
Weekly checks
check any unusual operations with the operator
remove oil stains from the welding area floor
check for any air leaks
Electrical system and control unit
check the microswitches
check to see if any unauthorised changes have been made to the programming parameters.
Electrodes and electrode holder
carry out an internal inspection of the electrodes and electrode holder
clean the electrodes, electrode holder, clamps
check parallelism of the arms in the welding position
Compressed air circuit
check tightness of connections
check tightness of the cylinder screws
Six-monthly checks
Electrical system
clean all the contacts of the secondary circuit to remove corrosion with fine grain abrasive material
tighten all connections
check protection devices and overloads (thermostats)
check welding parameters and correct them if necessary
check tightness of the power, transformer and welding control unit terminals
Compressed air circuit
check the proper working order of the filter-regulator-gauge (FRG) unit
change any damaged connections
empty the air line filter
When the welding machine is not going to be used
If the welding machine is not going to be used for some time there are a few things that need doing to prevent damage:
lock the cylinder in the completely retracted position
if the machine has to be stored away protect it by wrapping it with a protective film
the welding machine must be stored in a dry place
protect unpainted parts from dirt and corrosion
INVERTER AS25-13K AS25-15K "R3.2"
- 21 -
Resistance Welding Solutions