5-3
SECTION 5
LP GAS SYSTEM
AIR IN THE LP GAS TANK
If your LP gas appliances do not stay lit or re-
quire frequent adjustment, even though you
know the LP tank contains sufficient fuel, the
problem may be air in the LP gas tank. Air in the
tank mixes with the LP gas vapors causing them
to burn poorly. This condition could linger for
weeks if the air is not purged from the tank. Most
LP gas dealers have equipment for purging air
from LP gas tanks and will purge before refilling
the tank.
TRAVEL WITH LP GAS
It is illegal for vehicles equipped with LP
tanks to travel on certain roadways or through
certain tunnels in the U.S. To avoid inconve-
nience, check state regulations concerning flam-
mable gas transportation.
REGULATOR
The pressure regulator is protected from the
elements by a plastic cover which should be left
in place at all times. Only your dealer or a quali-
fied LP gas service should remove the regulator
cover for adjustments.
Regulator freeze-ups are caused by the pres-
ence of moisture in fuel. This moisture will pass
through the cylinder valve and into the regulator
where it can freeze. Fuel producers, tank and bot-
tle manufacturers and LP gas dealers take every
precaution to reduce moisture, but sometimes
only a fraction of an ounce entering the tank can
cause problems. To help avoid the possibility of
freeze-up, always keep tank control valve closed
when not in use, even when tank is empty, to pre-
vent moisture from collecting on the inside.
If regulator freeze-up should occur, you may
attempt to thaw the regulator using a light bulb.
DO NOT USE AN OPEN FLAME OR HEAT
LAMP.
If moisture begins to cause problems, have
your LP gas dealer inject a small amount of dry
WARNING
DO NOT FILL CONTAINER TO
MORE THAN 80 PERCENT OF CA-
PACITY. Make sure the motor home
is level when filling. It is possible to
accidentally overfill the tank if the ve-
hicle is unlevel, especially if the fill
valve is on the uphill side. Overfilling
the LP gas container can result in un-
controlled gas flow which can cause
fire or explosion. A properly filled
container will contain approximately
80 percent of its volume as liquid LP
gas.
All pilot lights must be extinguished
and supply valve closed before refill-
ing LP gas tanks or vehicle fuel tanks.
Do not smoke or expose an open
flame
while near an LP refueling area.
LP gas is heavier-than-air and ex-
tremely flammable.
Never use an open flame
to test for
LP gas leaks.
Replace all protective covers and caps
on LP system after filling.
Never
fill the LP tank with engine or
generator running.
Do not
alter or remove LP tank gauge
at any time.
WARNING
Inspect the pressure regulator vent
hole periodically for blockage. If any
obstruction is apparent, have the regu-
lator serviced by your dealer or a qual-
ified LP gas service center.
LP gas regulators are installed with
the diaphragm vent facing downward.
Make sure that the regulator vent
always faces downward to minimize
vent obstruction which could result in
excessive pressure, causing a fire or
explosion.
