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3. Do not use a tool to install the filter assembly.
Tighten the assembly by hand. Install the filter
bowl (2). Turn the filter bowl clockwise until the
filter bowl locks into position against the stops.
4. Turn the fuel supply valve to the ON position.
5. Both primary fuel filters and the secondary fuel
filter must be replaced at the same time. Refer to
the Operation and Maintenance Manual, "Fuel
System Primary Filter (Water Separator) Element -
Replace".
6. Prime the fuel system. Refer to the Operation and
Maintenance Manual, "Fuel System - Prime" for
more information.
Fuel Tank Water and Sediment
- Drain
NOTICE
Care must be taken to ensure that fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and repair of the product.
Be prepared to collect the fluid with suitable contain-
ers before opening any compartment or disassem-
bling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.
Fuel Tank
Fuel quality is critical to the performance and to the
service life of the engine. Water in the fuel can cause
excessive wear to the fuel system.
Water can be introduced into the fuel tank when the
fuel tank is being filled.
Condensation occurs during the heating and cooling
of fuel. The condensation occurs as the fuel passes
through the fuel system and the fuel returns to the
fuel tank. This causes water to accumulate in fuel
tanks. Draining the fuel tank regularly and obtaining
fuel from reliable sources can help to eliminate water
in the fuel.
Drain the Water and the Sediment
Fuel tanks should contain some provision for draining
water and draining sediment from the bottom of the
fuel tanks.
Open the drain valve on the bottom of the fuel tank in
order to drain the water and the sediment. Close the
drain valve.
Check the fuel daily. Allow five minutes after the fuel
tank has been filled before draining water and
sediment from the fuel tank.
Fill the fuel tank after operating the engine in order to
drive out moist air. This will help prevent
condensation. Do not fill the tank to the top. The fuel
expands as the fuel gets warm. The tank may
overflow.
Some fuel tanks use supply pipes that allow water
and sediment to settle below the end of the fuel
supply pipe. Some fuel tanks use supply lines that
take fuel directly from the bottom of the tank. If the
engine is equipped with this system, regular
maintenance of the fuel system filter is important.
Fuel Storage Tanks
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Drain the water and the sediment from the fuel
storage tank at the following intervals:
• Weekly
• Service intervals
• Refill of the tank
This will help prevent water or sediment from being
pumped from the storage tank into the engine fuel
tank.
If a bulk storage tank has been refilled or moved
recently, allow adequate time for the sediment to
settle before filling the engine fuel tank. Internal
baffles in the bulk storage tank will also help trap
sediment. Filtering fuel that is pumped from the
storage tank helps to ensure the quality of the fuel.
When possible, water separators should be used.
Hoses and Clamps - Inspect/
Replace
Contact with high pressure fuel may cause fluid
penetration and burn hazards. High pressure fuel
spray may cause a fire hazard. Failure to follow
these inspection, maintenance and service in-
structions may cause personal injury or death.
If you inspect the engine in operation, always use the
proper inspection procedure to avoid a fluid
penetration hazard. Refer to Operation and
Maintenance Manual, "General hazard Information".
Inspect all hoses for leaks that are caused by the
following conditions:
• Cracking
Maintenance Section
Fuel Tank Water and Sediment - Drain
93
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