INSTALLATION
A-8 A-8
SQUARE WAVE TIG 275
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TWIST-MATE ADAPTER FOR LA-9
and LA-17 TIG TORCH
The Twist-Mate connection allows fast and reliable TIG
torch connections to the electrode terminal of the
Square Wave TIG 275. The Twist-Mate adapter, strain
relief boot and retaining compound needed to connect
an LA-9 or LA-17 torch (or any equivalent air-cooled
TIG torch with a right-hand male 3/8-24 fitting) are
included with the Square Wave TIG 275.
Assemble the the LA-9 or LA-17 TIG torch to the Twist-
Mate adapter as follows:
1. Slide the strain relief boot over the TIG torch’s
power cable with gas fitting.
2. Apply a small amount of retaining compound to the
fitting threads as shown. Thread the fitting to the
TIG adapter and tighten to ensure a sealed gas
connection and a good electrical connection. (35-45
in-lbs)
3. Hold the TIG adapter, with cable installed, firmly in
place by securing it into the Twist-Mate receptacle
on the power source or into a padded vise. Align
the hex in the boot with the hex on the adapter.
Firmly push the boot onto the adapter, rocking the
boot to assist installation. Use soap for lubricant if
required.
4. Examine the strain relief boot and TIG adapter for
correct assembly. The boot should nest into the
Twist-Mate receptacle on the power source. All
electrical surfaces should be completely covered
when in the Twist-Mate receptacle on the power
source. For more details see M19115PRINT includ-
ed with the machine.
TWIST-MATE ADAPTER FOR LW-18
and LW-20 TIG TORCH
The Twist-Mate connection allows fast and reliable TIG
torch connections to the electrode terminal of the
Square Wave TIG 275. The Twist-Mate adapter and
strain relief boot needed to connect an LW-18 or LW-20
torch (or any equivalent water-cooled TIG torch with
the fittings shown in the diagrams under step 2 and 3)
are included with the Square Wave TIG 275.
Assemble the the LW-18 or LW-20 TIG torch to the
Twist-Mate adapter as follows:
1. Slide the strain relief boot over the TIG torch’s
power/water cable (large fitting) and gas hose
(small fitting without notches on hex). Also slide a
water hose into the strain relief boot as shown.
2. Thread the power/water cable (large fitting) from the
torch to the large port on the TIG adapter and tight-
en to ensure a water tight connection. Next, thread
the gas hose (small fitting without notches on hex)
to the port marked “G” on the TIG adapter and tight-
en to ensure a sealed gas connection. Next, thread
the water hose to cooler (or to water drain) to the
port marked “W” on the TIG adapter.
3. Check all connections made in step 2 for gas and
water leaks before proceeding.
