TECNA 3664 Instalacion, Empleo, Mantenimiento, Recambios página 39

PROBLEM
MACHINE FAILS TO SWITCH ON
MACHINE FAILS TO WELD
MACHINE WELDS BUT
CURRENT SUPPLIED
INSUFFICIENT
FOR ANY OTHER PROBLEM NOT SPECIFIED IN THE ABOVE TABLE, PLEASE CONTACT THE SERVICING DEPARTMENT.
SIGNAL
THE CONTROL UNIT DOES NOT
LIGHT UP
THE START BUTTON ON THE
GUN'S HANDLE IS PRESSED
AND THE WELDER DOES NOT
WELD
THE THERMOSTAT
ACTIVATED
WELDING CYCLE
IS BEFORE THE END
CAUSE
POWER SUPPLY FAILURE
CHECK FUSES
THE BUTTON
CONTROL UNIT IS IN NO/WELD
POSITION
CHECK LINE PRESSURE
START WIRE
MICROSWITCH ON HANDGRIP
MAY BE BROKEN
THE SOLENOID VALVE IS NOT
ENERGIZED, THEREFORE NO
AIR IS PASSED
IS THE WELDING TRANSFORMER
IS OVERHEATED
INVERTER THERMOSTAT HAS
TRIGGERED
STOPS THE OPERATOR
RELEASED THE
TRIGGER BEFORE EXPIRY OF
SET WELDING TIME
39
REMEDY
MAKE SURE THAT ALL THREE
PHASES
CONNECTED AND CHECK FOR
POSSIBLE BREAKAGE IN THE
POWER SUPPLY CABLE
REPLACE BLOWN FUSES. IF
FUSES BLOW AGAIN, CONTACT
SERVICING
PRESS THE BUTTON ON THE
ON THE
CONTROL UNIT IN WELD
POSITION
INCREASE PRESSURE TO AT
LEAST 8,5 BAR
OR
CONTACT SERVICE
CHECK THAT COOLING WATER
IS PROPERLY CIRCULATING
CHECK THAT
COOLING FAN IS OPERATING
HAS KEEP START
START PRESSED UNTIL WELDING IS
COMPLETED
HAVE BEEN
INVERTER
TRIGGER