12
Note: Federal standards for vehicle fuel tanks may
require the installation of an automatic shutoff valve
at the genset fuel tank pickup to prevent leakage in
the event of a roll-over. Federal standards for vehicle
impact, roll-over and emmisions may also apply to a
separate genset fuel tank. Check with the vehicle
chassis manufacture regarding these standards.
For long runs use copper or hot dip coated seam-
less steel tubing (ASTM A-254) with double-flared
fittings. See Figure 10 for the connection at the gen-
set. Use 1/4 inch I. D. fuel hose (SAE 30-R7) and
stainless steel hose clamps.
Run the fuel line at or above the top of the fuel tank to
reduce the risk of siphoning fuel out of the tank if the
line should break. The maximum fuel pump lift is
36 inches (914 mm).
Route gasoline fuel lines away from electrical wiring
and hot engine exhaust components. (Heat can
cause fuel vapor lock.) Fuel lines should be accessi-
ble for inspection and replacement, protected from
damage and secured to prevent kinking, contact
with sharp edges and chafing due to vibration.
WARNING
Sparks can ignite gasoline, leading
to severe personal injury or death. Do not run
electrical wiring and fuel lines together. Sepa-
rate them with conduit or tubing if run through
the same opening. Do not tie them together.
LPG
The Standard for the Storage and Handling of Liqui-
fied Petroleum Gases (NFPA No. 58) should be
used as a guide for the installation of the LPG fuel
system. Figure 11 illustrates a typical LPG fuel sys-
tem.
WARNING
LPG is flammable and explosive
and can cause asphyxiation. NFPA 58, Section
1.6 requires all persons handling LPG to be
trained in proper handling and operating proce-
dures.
Adjust the gas supply pressure (at the gas inlet of
the pressure regulator) to at least 9 inches (229 mm)
Water Column (WC). The pressure must not exceed
13 inches (330 mm) WC.
WARNING
High LPG supply pressure can
cause gas leaks which can lead to fire and se-
vere personal injury or death. LPG supply pres-
sure must be adjusted to Specifications by qual-
ified personnel.
Route LPG fuel lines away from electrical wiring and
hot engine exhaust components. Fuel lines should
be accessible for inspection and replacement, pro-
tected from damage and secured to prevent kinking,
contact with sharp edges and chafing due to vibra-
tion.
WARNING
Sparks can ignite LPG, leading to
severe personal injury or death. Do not run elec-
trical wiring and fuel lines together. Separate
them with conduit or tubing if run through the
same opening. Do not tie them together.
Route the LPG vent hose (Figure 11) so that it vents
to the outside.
WARNING
LPG leaks from the vent hose can
lead to explosive accumulations inside the gen-
set compartment. Route the LPG vent hose so
that it vents to the outside.
For a long fuel line run, use seamless steel tubing
with flared ends. Make flexible hose connections at
the fuel tank and at the genset. Use 3/8-inch I.D. fuel
line for runs up to 3 feet (0.9 m) and 1/2-inch I.D. up
to 15 feet (4.6 m).
Redistribution or publication of this document,
by any means, is strictly prohibited.
To Next Page
Loading...
Need help?
General
