Hydraulic Systems - Holiday Navigator 2003 Owner's Manual

Water in Fuel (H2O) Light:
If the Water in Fuel light illuminates on the dash, the primary filter has
detected water in the fuel. Do Not continue engine operation as fuel contaminated
with water can damage fuel injectors. Water is heavier than fuel so a discharge
line is located at the bottom of the primary filter. Purge water from the filter
using the H2O purge button on the filter control panel. Contaminated fuel will
be purged from the bottom of the filter into a holding bottle located below the
engine on the curbside.
To remove water from the filter:
1. Turn the ignition key on. Do Not start the engine. The Power and
H2O indicator lamps on the filter control panel should illuminate.
If the H2O light is not lit, the electronics in the control panel will
not allow a H2O purge cycle.
2. Press the H2O button. The purge cycle will last about one minute.
Change the fuel filter at the earliest convenience. Empty the
holding bottle at the same time.
NOTE: The H2O purge will operate only when water is detected.
NOTE: Always carry an extra Racor element as one tank full of
excessively contaminated diesel fuel can plug a filter.
The motorhome uses an engine driven hydraulic pump to operate both the
power steering system and the engine hydraulic cooling fan system. The
hydraulic pump is a dual stage pump that uses one half of the pump to supply
pressurized hydraulic fluid to the power steering. The other half of the pump
supplies the engine cooling fan motors. The hydraulic system uses the same
fluid for both systems, sharing one common reservoir. The hydraulic fluid used
is an automatic transmission fluid (Dexron III®) which has a wide ambient
temperature operating range.
CAUTION: If ambient temperatures approach 0º F, Pennzoil
Arctic Blue hydraulic fluid, or equivalent hydraulic fluid,
should be used. Using incorrect hydraulic system fluid
weights in cold or arctic temperatures will raise the
hydraulic system operating pressure and may damage the
hydraulic cooler.
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N A V I G A T O R 2 0 0 3
Chassis Information
HYDRAULIC
SYSTEMS
1 0 • 4 4 3