Oil Sentry
(if equipped)
™
This switch is designed to prevent engine
from starting in a low oil or no oil condition. Oil
Sentry
may not shut down a running engine
™
before damage occurs. In some applications
this switch may activate a warning signal. Read
your equipment manuals for more information.
Fuel Recommendations
Explosive Fuel can cause fi res
and severe burns.
If a gaseous odor is detected,
ventilate area and contact an
authorized service technician.
LPG is extremely fl ammable and is heavier
than air and tends to settle in low areas
where a spark or fl ame could ignite gas. Do
not start or operate this engine in a poorly
ventilated area where leaking gas could
accumulate and endanger safety of persons
in area.
NG is extremely fl ammable, is lighter than air,
and rises. Do not start or operate this engine
in a poorly ventilated area where leaking gas
could accumulate and endanger safety of
persons in area.
To ensure personal safety, installation and
repair of LPG/NG fuel supply systems must
be performed only by qualifi ed LPG/NG
system technicians. Improperly installed and
maintained LPG/NG equipment could cause
fuel supply system or other components to
malfunction, causing gas leaks.
Observe federal, state and local laws
governing LPG/NG fuel, storage, and
systems.
This engine is certifi ed to operate on LPG or
LPG/NG.
LPG Engines
LPG from an appropriate LPG fuel tank
(supplied separately) is required to operate this
engine.
NG Engines
NG from an approved system or source of
supply can be used to operate this engine.
24 590 48 Rev. --
WARNING
KohlerEngines.com
Fuel Conversion
NOTE: When switching from NG to LPG fuel
or LPG to NG fuel, battery must be
temporarily disconnected for safety and
to reset system.
Some engines are equipped to convert between
LPG and NG. Models with fi tting and jet should
follow these instructions for conversion. Other
metering valves should be installed following
instructions given by equipment it powers.
Shut off fuel supply before any servicing is
performed.
LPG Operation
Installation of jet in regulator fi tting is required
for LPG operation.
Switching from NG to LPG
Remove fuel inlet hose. Inspect internal threads
of regulator fi tting to ensure they are clean and
dry. Install jet into fuel elbow orifi ce for LPG
operation. Reconnect and fully tighten fuel inlet
hose.
Outlet pressure should be checked and if
required, set at secondary regulator to 4.0 to
5.0 psi by qualifi ed personnel.
NG Operation
Removal of jet from regulator fi tting is required
for NG operation.
Switching from LPG to NG
Remove LPG fuel jet from regulator fi tting.
Disconnect hose, remove jet from orifi ce, and
reconnect hose.
Recommended fuel inlet pressure for NG
systems is 11 in. water (engine off ). Reduced
pressure could result in hard starting.
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