SECTION 7 – FUELSYSTEMS JAYCO TOWABLE
7-2
PROPANE SAFETY PROCEDURE
Propane is a colorless and odorless gas that, in the liquefied state, resembles
water. An odorant (mercaptan that is described, by many people, as having an
odor similar to “rotten eggs”) is added as a warning agent. If you smell propane
within the vehicle, quickly and carefully perform the procedure listed on the label
below.
This label has been placed in the RV near the range, for models equipped with a
propane system.
Fig. 7.1 “If you smell propane”
label
When propane container is low, occasionally there may be a concentration of an
onion or garlic-like odor, which can be mistaken for a propane gas leak.
After the propane container has been refueled, the odor will usually disappear. If
not, turn off the valve(s) and have the propane system inspected by an
independent Jayco dealer or qualified propane service representative.
PROPANE GAS CONTAINER
Propane “container” is a general all inclusive term used to describe a vessel that is
used for storage and delivery of propane gas. The most common of these are:
DOT (Department of Transportation) cylinders are transportable and are
commonly used on RV trailers. The capacity of DOT propane cylinders is
expressed in pounds. DOT propane cylinders are required to be removed from the
RV for filling and must be filled by weight by a qualified propane facility. DOT
Propane cylinders are equipped with an OPD or Over Fill Protection Device
designed to reduce the potential of overfilling. DOT propane cylinders are also
equipped with an ACME service valve that is for connection of the TYPE 1 ACME
pigtail hose assembly to the RV two-stage regulator.
The TYPE 1 ACME pigtail hose assembly is a wrenchless, user friendly, right
hand threaded connector that features a thermally sensitive sleeve and excess
flow device. Max output is 200,000 BTU/hr. It is used to connect propane
cylinders to regulators, hoses and other fittings. It is not for use on gas grills and
other low pressure devices. DOT cylinders equipped with an OPD and ACME
type 1 service valve are identified by the triangular service valve knob.
DOT cylinders are typically marked with “top” or an arrow to indicate the correct
orientation of the cylinder(s). Do not mount, store or transport any cylinder other
than the in proper position indicated. Be sure to securely re-install DOT
cylinder(s) to the RV after they have been removed for filling or replacement.
Always close the service valve and install a dust cap or plug when transporting or
storing disconnected containers whether full or empty.
ASME tanks are permanently mounted to the RV and are commonly used on RV
motor homes.
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