Fuel System
Maintenance
Servicing the Fuel System
Under cer tain conditions, diesel fuel and fuel
v apor s ar e highl y flamma ble and explosi v e.
A fir e or explosion fr om fuel can bur n y ou
and other s and can cause pr oper ty dama ge.
• Use a funnel and fill the fuel tank
outdoor s, in an open ar ea, when the
engine is of f and is cold. W ipe up an y
fuel that spills.
• Do not fill the fuel tank completel y full.
Add fuel to the fuel tank until the lev el is
1/4 to 1/2 inch (6 to 13 mm) belo w the
bottom of the filler neck. T his empty
space in the tank allo ws the fuel to
expand.
• Nev er smok e when handling fuel, and
stay a w ay fr om an open flame or wher e
fuel fumes may be ignited by a spar k.
• Stor e fuel in a clean, safety-appr o v ed
container and k eep the cap in place.
Fuel Tank
Drain and clean the fuel tank ev er y 800 hours .
Also , drain and clean the tank if fuel system
becomes contaminated or if the mac hine will be
stored for an extended period of time . Use clean
fuel to flush out the tank.
Fuel Lines and Connections
Chec k the fuel lines and connections ev er y
400 hours or yearly , whic hev er comes first.
Inspect them for deterioration, damag e , or loose
connections .
Water Separator
Drain w ater or other contaminants from the w ater
se parator ( Figure 50 ) daily .
1. Place a clean container under the fuel filter .
2. Loosen the drain plug on the bottom of the
filter canister ( Figure 50 ). Tighten the plug
after draining .
Figure 50
1. Water Separator
2. Drain plug
R e place filter canister after ev er y 400 hours of
operation.
A. Clean the area where the filter canister
mounts .
B . R emo v e the filter canister and clean the
mounting surface .
C . Lubricate the g ask et on the filter canister
with clean oil.
D . Install the filter canister b y hand until the
g ask et contacts the mounting surface; then
rotate it an additional 1/2 tur n.
Replacing the Fuel Pre-Filter
R e place the fuel pre-filter ( Figure 51 ), located
betw een fuel the tank and fuel pump , after ev er y
400 operating hours or yearly , whic hev er occurs
first.
1. Clamp both fuel lines that connect to the fuel
filter so that fuel cannot drain when the lines
are remo v ed.
2. Loosen the hose clamps at both ends of the
filter and pull the fuel lines off of the filter .
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