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
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. |