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Regular Maintenance
LEAK TESTING THE FUEL SYSTEM
This procedure should only be used when trying to
identify the location of a leak.
1. Create a mixture of 50% water and 50% liquid
dishwashing soap.
2. OPEN the fuel tank shut-off valve on the left
hand propane tanks (turn valve COUNTER-
CLOCKWISE. Leave the fuel tank shut-off valve
on the right tank closed propane tank closed.
3. Using a sponge, rag or small non-metallic brush,
apply the soap water mixture at each of the
locations circled in Figure 3.
4. Check each location shown in Figure 3 for
growing bubbles, which indicate a fuel leak.
Bubbles will look something like this:
5. CLOSE the fuel tank shut-off valve (turn fully
CLOCKWISE).
6. Tighten or replace any leaking connections.
7. Repeate steps 2 through 6 until no leaks are
detected. DO NOT use the unit if leaks cannot be
stopped. Contact your authorized Ferris dealer for
assistance.
8. Repeat steps 2 through 8, with the fuel tank shut-
off valve closed on the left propane tank and
the fuel tank shut-off valve opened on the right
propane tank.
WARNING
Gaseous vapors are extremely flammable
and explosive.
Fire or explosion can cause severe burns
or death.
• DO NOT smoke or permit ignition sources in
the area while conducting a leak test.
• Perform leak test OUTDOORS only in a well
ventilated area.
• DO NOT perform a leak test with a match or
open flame.
• DO NOT perform a leak test while the unit is
in use.
• ALWAYS perform a leak test whenever any
fuel system components are changed.
FLAMMABLE
GAS
2
9. When you are done testing the system make sure
that both fuel tank shut-off valves are CLOSED
until you are ready to use the unit again.
10. Wash off soapy residue with clean cold water and
towel dry.
11. Wait five minutes to allow all gas to evacuate the
area before starting the generator.
NOTE: The leak test must be performed in an area
that has adequate lighting in order to see if bubbles
are developing. DO NOT use a flashlight to check for
bubbles.
Figure 3. Leak Test Locations
A. Regulator and Connections
B. Propane Tank (Right Side Shown)
A
B
Not for
Reproduction