| Propane Patrol [message #299819] |
Thu, 28 April 2016 14:18  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma:
|
Senior Member |
|
|
The shutoff valve on my propane tank died. After resurrection two years ago with new packing, it finally died again, and had burrs turned on the sealing shaft. So I took it off the tank, which destroyed the remainder of it by warping the brass, and hied myself down to Blossman Gas. Buck, the local manager, found a replacement in one of his catalogs and ordered it, due here tomorrow for $30. According to Buck, it is the same as the valve on a 100 # upright cylinder, but instead of a 200 PSI relief it has a 350 PSI relief, required for over the road tanks. Fisher, the original manufacturer, is long out of the brass valve binniss. When the new one arrives, I'll post manufacturer and model number.. it ought to fit the 26' tanks as well.
Meantime, I decided to remove the tank and paint it, and have an easier time of replacing the valve without damage. Four carriage bolts, ought to be simple enough. The outer two wrung off quite easily. The inner two aren't visible, although they can be reaches with a wrench. One's tucked under the frame rail, one under the exhaust. Neither would let go, instead of disintegrating they have wallowed the holes in the tank foot. So I got out my trusty Blackened Pecker Heathen Chinee Dremel clone, and a box of cutoff wheels and a cold chisel. I had the fist one nearly done by crosscutting the head and chiselling it off when the Dremel clone spat sparks and died. Upon disassembly I found it quite well made - security Torx fasteners holding it together, ball bearings on both ends of the motor, big ball bearing at the chuck. Nice DC permanent magnet motor run by a circuit card with a bridge and a pass transistor to regulate the speed. And although it has three detents on the speed control it's merely a 500K pot, the speed is actually continuously variable. The variable speed model was 5 or ten dollars extra, I suspect all they did was remove the detents and the F M S markings on the speed control wheel. Anyway, the only non-serviceable parts in the thing are the brushes, in a fixed plastic holder under a swaged - on metal plate with the rear bearing in it.
I think I can get the valve back on the tank without damage even with the tank in place.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
