Parweld XTS-902 - 7 Operation; 8 Fault Finding

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8
Warning
Disconnect primary power at the source before removing the cover.
Wait at least two minutes before opening the cover to allow the
primary capacitors to discharge.
To clean the unit, remove the screws securing the outer cover,
lift o󰀨 the outer cover and use a vacuum cleaner to remove any
accumulated dirt and dust. The unit should also be wiped clean with
a damp cloth.
Weekly 6 months 2 Years
Check coolant
level
*
Check hoses for
kinks
*
Blowout heat
exchanger
*
Drain & replace
UltraCool
*
7.0 Operation
Before switching on the unit ensure the header tank is full none of
the cooling vents are obstructed and the electrical connections are
secure.
Move the on/o󰀨 switch into the on position before operating the torch
or welding plant.
8.0 Fault Finding
Description Possible cause Remedy
Unit does not
switch on
(a) The primary supply
voltage has not been
switched on
(b) The input voltage has
not been set correctly
(c) obstruction preventing
rotation of the pump
(a) Switch on the
primary supply
voltage
(b) check the input
voltage matches
that set on the unit
(c) Have a qualied
service engineer
disconnect the
power and the
remove the service
panel to check
rotation of the pump
Torch over
heats
low coolant ow Check coolant level
is correct, check
for kinks in the
hoses and system
blockages.
Ensure cooling
vents on the unit are
not obstructed.
Blow out the heat
exchanger.
Welding torch
stops working
Low coolant ow (XTS-
902F)
Check coolant level
is correct, check
for kinks in the
hoses and system
blockages.
Have a service
engineer check the
operation of the ow
switch.
8.1 ROUTINE MAINTENANCE
The only routine maintenance required for the water cooler is a
thorough cleaning and inspection, with the frequency depending on
the usage and the operating environment.
FAULT
FINDING