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DIESEL FUEL SYSTEM
Fuel system components which require periodic maintenance services
are the engine air cleaners and the fuel filters. Care must be taken when
filling the fuel tank to prevent entry of dirt and water. Fuel lines and
connections should be inspected regularly for evidence of leaks.
If by mistake gasoline is poured in the diesel fuel tank and the
engine is operated, the entire system must be drained; otherwise
damage to the fuel system may occur.
See your authorized dealer for servicing the fuel system.
Steps In Refueling
CAUTION: Before pulling up to a fuel pump, be sure that all
occupants in your vehicle stop smoking and extinguish any smoking
materials. Do not permit sparks or flames in the presence of fuel or
fumes, to help avoid personal injury or property damage due to fire.
Diesel fuel will ignite and burn as readily as gasoline if the fuel is
warm enough or additives have lowered its ignition temperature.
1. Follow all the steps under “Parking” in Section 2.
2. Select the correct fuel as referenced on page 2-3. Follow any posted
safety rules. Stand to the side, never above or opposite the filler opening.
3. Check that the fuel cap is tight, and see to it that engine oil, engine
coolant in the reservoir, and washer fluid, etc. are at proper levels.
Then do the Driver Daily Checklist in Section 1.
FUEL SYSTEM PRIMING (Air bleeding)
When The Fuel Has Run Out
The fuel system must be primed if your vehicle has run out of fuel.
The priming pump is located on the outboard side of the left frame rail,
in front of the batteries.
Before Starting The Engine
If your vehicle has run out of fuel, bleed the air out of the system
from the air bleeding plug on the side of the priming pump, because
otherwise the air would enter the fuel system and would cause starting
trouble.
1. Position a tray to collect the discharged fuel on the ground
underneath the air bleeding plug, then loosen the air bleeding plug
substantially.
2. Move the priming pump up and down for more than 20 pump cycles
until fuel with air bubbles stops coming from the air bleeding plug.
3. Tighten the air bleeding plug securely and wipe the fuel around the
plug clean.
4. Operate the priming pump for more than 10 pump cycles to send
the air in the fuel system to the fuel supply pump.
5. Turn the engine control switch to start the engine.
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