INSTALLATION 3-8 Manual 0-2962
F. Automated Machine Torch Systems with
O2B Connectors
Torches with shielded leads and O2B connectors connect
directly to the power supply bulkhead.
1. Remove the Through - Hole protector Nut from
the Through - Hole protector. Inside the Power
Supply Bulkhead area, route the connectors on
the free end of the torch leads through the Through
- Hole protector Nut.
2. Fit the leads ends and the Through - Hole protec-
tor into the hole in the unit.
3. Secure the Through - Hole protector with the re-
taining nut removed earlier.
4. Connect the Negative / Plasma Lead to the bulk-
head connection inside the Power Supply.
5. Remove the top nut and washer from the Pilot
Stud.
6. Connect the pilot lead terminal to the stud and
secure with the nut and washer removed previ-
ously.
7. Connect the connectors to the power supply
adapter as shown.
Adapter
Connector
Pilot Lead Stud
Strain Relief
Nut
Strain Relief
Shielded Torch Leads
with O2B Connector
Pilot Lead
Negative/Plasma
Lead
Torch Control
Connectors
Shield
Connectors
A-03678
Power Supply Bulkhead
May Differ from Type Shown
Bulkhead Connections - Shielded Machine Torch
Leads with O2B Connectors
8. Tighten the Through - Hole protector onto the ATC
Adapter leads.
9. Check the torch for proper consumable parts.
CAUTION
The torch parts must correspond with the type of
operation. Refer to Section 4.04, Torch Parts Se-
lection.
3.07 Gas Connection
A. Connection
Connect the gas, compressed air only, to the Power
Supply as described in the Power Supply Manual.
CAUTION
Air supply must be free of oil, moisture, and other
contaminants. Excessive oil and moisture may
cause double - arcing, rapid tip wear, or even com-
plete torch failure. Contaminants may cause poor
cutting performance and rapid electrode wear.
B. Checking Air Quality
To test the quality of air, place a welding filter lens in
front of the torch and turn on the gas. Any oil or
moisture in the air will be visible on the lens. Do not
initiate an arc!
C. Filtering
An in - line pneumatic dryer & evaporator type air
filter, capable of filtering to at least 5 microns, is re-
quired when using air from a compressor. This type
filter will insure that moisture, oil, dirt, chips, rust
particles, and other contaminants from the supply
hose do not enter the torch. For highly automated
applications, a refrigerated drier may be used.
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