Tweco 161 S Inverter Arc Welder - Manual (Page 41)

SERVICE THERMAL ARC 161 S
Manual 0-5199 5-1 Service
5.01 Maintenance and Inspection
The only routine maintenance required for the power
supply is a thorough cleaning and inspection, with the
frequency depending on the usage and the operating
environment.
WARNING
There are extremely dangerous voltages and
power levels present inside this product.
Disconnect primary power at the source be-
fore opening the enclosure. Wait at least two
minutes before opening the enclosure to allow
the primary capacitors to discharge.
To clean the unit, open the enclosure and use a vacuum
cleaner to remove any accumulated dirt and dust. The unit
should also be wiped clean, if necessary; with solvents
that are recommended for cleaning electrical apparatus.
CAUTION
Do not blow air into the power supply during
cleaning. Blowing air into the unit can cause
metal particles to interfere with sensitive
electrical components and cause damage to
the unit.
SECTION 5:
SERVICE
Warning!
Disconnect input power before maintaining.
Each Use
Visual check of
regulator and pressure
Visual check of torch
Consumable parts
Weekly
Visually inspect
the torch body
and consumables
Visually inspect the
cables and leads.
Replace as needed
3 Months
Clean
exterior
of power supply
6 Months
Replace all
broken parts
Bring the unit to an authorized
Thermal Arc Service Center
to remove any accumulated dirt
and dust from the interior.
This may need to be done more
frequently under exceptionally
dirty conditions.
Maintain more often
if used under severe
conditions
Art # A-08549_AB