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#1
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Sheen flame guns: question
Hello all
I have just inherited a very old Sheen brand paraffin flame gun with a hood and wheels. No instruction manual of course but I relied on my Boy Scout prowess with a Primus stove. It seems that you have to heat the paraffin filled coil with the fuel soaked asbestos wick until it reaches a suitable working temperature. After filling it with paraffin and soaking the wick with fuel I lit it and pumped it up to 20psi with the fuel valve shut. When it started roaring away. I opened the fuel valve and started to burn a patch of weedy ground . However after about 20 minutes it "goes out " and a huge cloud of unburnt vapour pours out. I have taken out the nozzle and cleaned it out but it continues to go out after 20 minutes. The pressure is kept around the 20psi mark .Should it be higher or lower ? Has anyone any suggestions as to why it works ok just for short periods ? -- Martin please remove spam trap when replying |
#2
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Sheen flame guns: question
The message
from "MartinF" contains these words: Hello all I have just inherited a very old Sheen brand paraffin flame gun with a hood and wheels. No instruction manual of course but I relied on my Boy Scout prowess with a Primus stove. It seems that you have to heat the paraffin filled coil with the fuel soaked asbestos wick until it reaches a suitable working temperature. After filling it with paraffin and soaking the wick with fuel I lit it and pumped it up to 20psi with the fuel valve shut. When it started roaring away. I opened the fuel valve and started to burn a patch of weedy ground . However after about 20 minutes it "goes out " and a huge cloud of unburnt vapour pours out. I have taken out the nozzle and cleaned it out but it continues to go out after 20 minutes. The pressure is kept around the 20psi mark .Should it be higher or lower ? I bought mine secondhand 20 years ago; they are almost indestructible. I think I obtained an instruction book from the manufacturer but it's so long ago I can't remember. (Excellent cheap postal spares service btw). You're right, it's just like a primus stove so if you can work one of those you'll soon get the hang of the flame gun. You've got the pressure too low. I pump mine up to 30 before lighting. Release the fuel valve just enough to soak the wick well and close it again. Point the gun away from the wind, and not towards your fence, shed or car. With the fuel valve only just shut, light the wick, then as it catches, very slightly open the fuel valve. If flame leaps 10 ft, you opened it too far. As the coil begins to heat, the beast begins to make panting noises. Once it has reached operating temp ( beast begins to roar) I pump it up to 40, and adjust the fuel valve again so that the flame is pale, short and fierce. As you're working keep an eye on the pressure valve and pump it up to 35 or 40 again when it drops to 25. With green weeds the object is not to incinerate them on the spot. A quick pass explodes their cells and turns plants very bright green. Within a few hours they wilt and in a week will be dead and dry and have shed any seeds. Then is the time for a second pass to burn off the debris, which will also kill the seeds. I use it till it's empty to avoid storing it with fuel inside. Remember to release the pressure (cautiously) at the fuel inlet on top, when you've finished. Keep a bucket of water ready before you start, just in case; and beware of plastic drain covers, hosepipes etc :-o. HTH Janet. |
#3
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Sheen flame guns: question
The message
from "MartinF" contains these words: Hello all I have just inherited a very old Sheen brand paraffin flame gun with a hood and wheels. No instruction manual of course but I relied on my Boy Scout prowess with a Primus stove. It seems that you have to heat the paraffin filled coil with the fuel soaked asbestos wick until it reaches a suitable working temperature. After filling it with paraffin and soaking the wick with fuel I lit it and pumped it up to 20psi with the fuel valve shut. When it started roaring away. I opened the fuel valve and started to burn a patch of weedy ground . However after about 20 minutes it "goes out " and a huge cloud of unburnt vapour pours out. I have taken out the nozzle and cleaned it out but it continues to go out after 20 minutes. The pressure is kept around the 20psi mark .Should it be higher or lower ? I bought mine secondhand 20 years ago; they are almost indestructible. I think I obtained an instruction book from the manufacturer but it's so long ago I can't remember. (Excellent cheap postal spares service btw). You're right, it's just like a primus stove so if you can work one of those you'll soon get the hang of the flame gun. You've got the pressure too low. I pump mine up to 30 before lighting. Release the fuel valve just enough to soak the wick well and close it again. Point the gun away from the wind, and not towards your fence, shed or car. With the fuel valve only just shut, light the wick, then as it catches, very slightly open the fuel valve. If flame leaps 10 ft, you opened it too far. As the coil begins to heat, the beast begins to make panting noises. Once it has reached operating temp ( beast begins to roar) I pump it up to 40, and adjust the fuel valve again so that the flame is pale, short and fierce. As you're working keep an eye on the pressure valve and pump it up to 35 or 40 again when it drops to 25. With green weeds the object is not to incinerate them on the spot. A quick pass explodes their cells and turns plants very bright green. Within a few hours they wilt and in a week will be dead and dry and have shed any seeds. Then is the time for a second pass to burn off the debris, which will also kill the seeds. I use it till it's empty to avoid storing it with fuel inside. Remember to release the pressure (cautiously) at the fuel inlet on top, when you've finished. Keep a bucket of water ready before you start, just in case; and beware of plastic drain covers, hosepipes etc :-o. HTH Janet. |
#4
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Sheen flame guns: question
The message
from "MartinF" contains these words: Hello all I have just inherited a very old Sheen brand paraffin flame gun with a hood and wheels. No instruction manual of course but I relied on my Boy Scout prowess with a Primus stove. It seems that you have to heat the paraffin filled coil with the fuel soaked asbestos wick until it reaches a suitable working temperature. After filling it with paraffin and soaking the wick with fuel I lit it and pumped it up to 20psi with the fuel valve shut. When it started roaring away. I opened the fuel valve and started to burn a patch of weedy ground . However after about 20 minutes it "goes out " and a huge cloud of unburnt vapour pours out. I have taken out the nozzle and cleaned it out but it continues to go out after 20 minutes. The pressure is kept around the 20psi mark .Should it be higher or lower ? I bought mine secondhand 20 years ago; they are almost indestructible. I think I obtained an instruction book from the manufacturer but it's so long ago I can't remember. (Excellent cheap postal spares service btw). You're right, it's just like a primus stove so if you can work one of those you'll soon get the hang of the flame gun. You've got the pressure too low. I pump mine up to 30 before lighting. Release the fuel valve just enough to soak the wick well and close it again. Point the gun away from the wind, and not towards your fence, shed or car. With the fuel valve only just shut, light the wick, then as it catches, very slightly open the fuel valve. If flame leaps 10 ft, you opened it too far. As the coil begins to heat, the beast begins to make panting noises. Once it has reached operating temp ( beast begins to roar) I pump it up to 40, and adjust the fuel valve again so that the flame is pale, short and fierce. As you're working keep an eye on the pressure valve and pump it up to 35 or 40 again when it drops to 25. With green weeds the object is not to incinerate them on the spot. A quick pass explodes their cells and turns plants very bright green. Within a few hours they wilt and in a week will be dead and dry and have shed any seeds. Then is the time for a second pass to burn off the debris, which will also kill the seeds. I use it till it's empty to avoid storing it with fuel inside. Remember to release the pressure (cautiously) at the fuel inlet on top, when you've finished. Keep a bucket of water ready before you start, just in case; and beware of plastic drain covers, hosepipes etc :-o. HTH Janet. |
#5
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Sheen flame guns: question
The message
from "MartinF" contains these words: Hello all I have just inherited a very old Sheen brand paraffin flame gun with a hood and wheels. No instruction manual of course but I relied on my Boy Scout prowess with a Primus stove. It seems that you have to heat the paraffin filled coil with the fuel soaked asbestos wick until it reaches a suitable working temperature. After filling it with paraffin and soaking the wick with fuel I lit it and pumped it up to 20psi with the fuel valve shut. When it started roaring away. I opened the fuel valve and started to burn a patch of weedy ground . However after about 20 minutes it "goes out " and a huge cloud of unburnt vapour pours out. I have taken out the nozzle and cleaned it out but it continues to go out after 20 minutes. The pressure is kept around the 20psi mark .Should it be higher or lower ? I bought mine secondhand 20 years ago; they are almost indestructible. I think I obtained an instruction book from the manufacturer but it's so long ago I can't remember. (Excellent cheap postal spares service btw). You're right, it's just like a primus stove so if you can work one of those you'll soon get the hang of the flame gun. You've got the pressure too low. I pump mine up to 30 before lighting. Release the fuel valve just enough to soak the wick well and close it again. Point the gun away from the wind, and not towards your fence, shed or car. With the fuel valve only just shut, light the wick, then as it catches, very slightly open the fuel valve. If flame leaps 10 ft, you opened it too far. As the coil begins to heat, the beast begins to make panting noises. Once it has reached operating temp ( beast begins to roar) I pump it up to 40, and adjust the fuel valve again so that the flame is pale, short and fierce. As you're working keep an eye on the pressure valve and pump it up to 35 or 40 again when it drops to 25. With green weeds the object is not to incinerate them on the spot. A quick pass explodes their cells and turns plants very bright green. Within a few hours they wilt and in a week will be dead and dry and have shed any seeds. Then is the time for a second pass to burn off the debris, which will also kill the seeds. I use it till it's empty to avoid storing it with fuel inside. Remember to release the pressure (cautiously) at the fuel inlet on top, when you've finished. Keep a bucket of water ready before you start, just in case; and beware of plastic drain covers, hosepipes etc :-o. HTH Janet. |
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