Product Manual

4-15
WELDING TIP
O-RINGS
MIXER/TIP CONE END
MIXER CONE END
TORCH HEAD
Figure 5
WARNING
There MUST be two (2) sealing O-rings in good condition on
the cone end. The absence of either O-ring creates a condition
that allows pre-mixing of oxygen and fuel gases. This can
lead to sustained backfire within the torch handle or cutting
attachment (see Figure 5).
5. If using a UM (Universal Mixer) mixer and welding nozzle, inspect
the seating surfaces of each before assembly. Tighten the nozzle
to the mixer firmly to prevent a leak.
6. Inspect the tip orifice(s). Spatter can stick on or in the orifice.
Remove spatter with a tip cleaner.
7. Insert the tip in the welding torch head. Hand-tighten only (see
Figures 6 and 7).
Figure 6 Figure 7
8. Open the oxygen valve on the torch handle. Adjust the oxygen
regulator delivery pressure according to the size and type of tip used.
See tip charts for proper adjustment pressures, in Section 5 and 6.