Lighting torches Shutting Down Torches
If you want to find out how these old torches operate without actually firing one up, then you've come to the right place. No one should conclude that he/she has gained the necessary expertise to operate or repair a gasoline blow torch simply by reading the information on this web page.
Zangobob's Generic Startup Procedure
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1. Fill the tank about 3/4 full with white gasoline. Be sure the pump is screwed in place and that the gasoline plug, if any, is securely in place after filling. Place the torch in a well ventilated area such that it is at least 6 feet away from anything flammable. Wipe off any spilled gasoline from the exterior of the torch. 2. Be sure that the fuel valve is all the way closed. |
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3. Pump up the tank by operating the pump handle about 10 times. Then
examine the torch for any leaks. Look at the burner head to be sure
there is no gasoline coming out of the orifice. Finish pumping up the
tank with an additional 30 strokes. No more! If the torch used has a
screw-in type plunger lock, then screw it in now. Be sure it is snug
but not over tightened. Now is a good time to oil the pump leather if
it seems like the torch isn't coming up to pressure.
4. Let the torch sit for two or three minutes while examining it
carefully for any leaking fuel. |
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5. Put your hand over the end of the burner head where the flame would
come out and open the fuel valve counter-clockwise a couple of turns.
You should see/feel fuel coming out of the orifice. This will cause
the fuel to fill the drip cup. (that's the little tray under the
burner head) I hope I do not have to tell you NOT to do this with a
HOT torch! I do not want to add a minimum IQ limit to my web site.
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6. Continue to let the drip tray fill up until it is about 3/4 full.
Close the fuel valve snugly, being careful not to over tighten.
7. With a Bic lighter or wooden match, set the fuel in the drip tray on
fire. Sometimes I use a little butane blow torch to light the drip cup
on fire. |
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8. At this point, there should be nice yellow flames engulfing the burner
head. When the drip cup is almost empty, SLOWLY open the fuel valve
just to the point where a flame starts to emerge out of the burner
head.
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9. When the drip cup is burned dry, the only flame you should have is the
small one out of the burner head. Carefully open the fuel valve CCW
until either you have opened it a total of five turns or until you
obtain a strong, loud blue flame emerging from the burner head. Do not
open the fuel valve beyond the point where the flame is at its maximum
intensity. There is nothing to be gained by opening the valve any further.
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10. Watch for any leaking fuel from the tank or any flames that start at
the end of the clamping nut. The picture at the left shows a very active
and leaky packing nut! Shut down the torch immediately if there is
anything abnormal in its operation. Be sure to have a five gallon
bucket of water, garden hose or CO2 fire extinguisher close by so
you are prepared if something goes wrong.
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