My dad had a 4020 propane. I hated that thing too. Not because it was
a bad tractor, but because I was still a kid then, and I was scared of
the refueling process.
You hook up a line from the liquid valve of a standard propane tank,
to the liquid intake valve on the tractor, then you hook up a return
line from the vapor side of the tracor to the propane barrel,
One gallon of liquid propane expands to 13 gallons of propane vapor.
When you bleed the vapor away from the tractor into the propane barrel
the differential in pressure allows the liquid to flow into the
tractor tank. As the liquid takes the place of the vapor the tank is
filled from bottom to top with liquid.
The tractor runs on both vapor and liquid, you start it on the vapor,
then when it is running well you switch it over to the liquid.
Obviously there is much more energy in the liquid than in the vapor.
My dad was plowing with his, running on liquid, when it got hot
enough that it melted the pistons.
We bought a diesel engine to replace the propane one. Best thing that
ever happened to that tractor. We still have it, use it most every
day, on the home farm. Has a Buhler loader on it.
This fella has a workaround of some sort.
No comments:
Post a Comment