Tweco SL100 - Manual (Page 24)

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 protector
into the hole in the unit.
3. Secure the Through - Hole protector with the retain-
ing nut removed earlier.
4. Connect the Negative / Plasma Lead to the bulkhead
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 se-
cure with the nut and washer removed previously.
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
Selection.
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 mois-
ture may cause double - arcing, rapid tip wear,
or even complete 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 required
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.