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ASPECT
®
230 DC
MAINTENANCE
Safety Precautions
WARNING
ELECTRIC SHOCK can kill.
•
Only qualified personnel should
perform this maintenance.
•
Turn the input power OFF at the
disconnect switch or fuse box before
working on this equipment.
•
Do not touch electrically hot parts.
WARNING
To avoid receiving a high frequency shock, keep the TIG
torch and cables in good condition.
ROUTINE AND PERIODIC MAINTENANCE
Very little routine maintenance is necessary to keep your Aspect
DC running in top condition. No specific schedule can be set for
performing the following items; factors such as hours of usage and
machine environment should be considered when establishing a
maintenance schedule.
• Periodically blow out dust and dirt which may accumulate within
the welder using an air stream.
• Inspect welder output and control cables for fraying, cuts, and
bare spots.
• The fan motor has sealed ball bearings which require no
maintenance.
OVERLOAD PROTECTION
FAN-AS-NEEDED (F.A.N.)
The Aspect
®
230 DC has the F.A.N. circuit feature, which means the
cooling fan will operate only as needed to assure proper machine
cooling. This helps reduce the amount of dust and dirt drawn into the
machine with the cooling air. The cooling fan will operate at lower
speeds when the machine power is initially turned on or at idle, and
continuously while the yellow Thermal Shutdown Light is lit (see
Thermostatic Protection).
THERMOSTATIC PROTECTION
This welder has thermostatic protection from excessive duty cycles,
overloads, loss of cooling, and excessive ambient temperatures.
When the welder is subjected to an overload, or inadequate cooling,
the primary coil thermostat and/or secondary coil thermostat will
open. This condition will be indicated by the illumination of the yellow
Thermal Shutdown Light on the front panel (see Item 2 in Figure B.19
Operation Section). The fan will continue to run to cool the power
source. Postflow occurs when TIG welding is shut down, but no
welding is possible until the machine is allowed to cool and the yellow
Thermal Shutdown Light goes out.
®
230
NO ARC PROTECTION
The machine outputs (Background / OCV, gas and HF) will be
shutdown, if the trigger is closed without welding for 15 seconds to
protect the Background resistor from overheating with F.A.N. cooling
off, as well as to conserve on gas waste.
FUSE PROTECTION
The cooler is protected by a 3-amp fast-acting fuse, located inside of
the welding machine on top of the P.C. board. The fuse is identified as
FS1. Ensure power is "off" and the machine is disconnected from
power when measuring or replacing the fuse. The fuse is 600V 3-amp
fast acting.
D-1
MAINTENANCE
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