8
NOTE: Boric acid powder can be added to the methyl alcohol
solution in a ratio of .5 to .7 ounces per quart. This should be
premixed. Boric acid with methyl alcohol provides a reducing
characteristic to the flame. This will keep your parts cleaner when
brazing (hard soldering).
a.
Fill the booster tank to the fill mark. Screw the booster tank
back in place with the T-handle. Tighten the T-handle finger
tight.
4.
Turn to the tip selection chart and select the desired tip size. Turn
toggle switch to the ON position. The red light will come on. Turn the
power control to the position so that the meter readings correspond
to the tip sizes. Wait 30 seconds to 1 minute until you feel a
sufficient amount of gas coming out of the tip. Usually you can hear
gas bubbling in the booster tank. When this occurs, light the torches.
a.
If more gas is required turn knob to a higher position within the
chart range.
b.
Conversely, if less gas is required, turn the knob to a lower
position.
CAUTION:
NEVER run the machine with the meter needle in the red
area.
5.
To turn off the machine,
first put out the flame
by pushing in the
shut off at the back end of the torch. When the flame is out, shut off
the machine.
Summary of Contents for 350
Page 5: ...5 WELDER DIAGRAM ...