4.2 TROUBLESHOOTING
4. MAINTENANCE AND TROUBLESHOOTING
MAINTENANCE AND TROUBLESHOOTING
TROUBLE
Machine does not work.
Welding current is low.
Fan is out of order.
Phase failure
No neutral line
Fuse blown out
Phase failure
Diode breakdown
A primary or secondary coil burn down
Fan supply voltage phase failure
Fan motor break down
[REMEDY] REASON
Before removing any screw on the machine for maintenance, power
supply must be disconnected from the electric lines and 10 seconds
should be allowed for capacitor discharging.
4.1 MAINTENANCE
Clean the labels on the
machine, replace the worn
out labels.
Repair or replace the worn
out welding cables.
Clean and tighten weld the
terminals.
Check the isolation of the
electrode holder, earth
clamp and their cables.
ONCE IN EVERY 3 MONTHS
ONCE IN EVERY 6 MONTHS
Open the covers of the
machine and clean with
dry air.
NOTE:
The above recommended maintenance periods are indicative, these may vary according to the
work shop conditions.
DO NOT PLUG THE MAINS ELECTRIC CABLE BEFORE CLOSING ALL THE
CABINET PANELS.
OR
RA 300 E / RA 400 E / RA 650 E
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