Fuel tanks should contain some provision for draining
water and sediment from the bottom of the tanks.
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.
Drain the water and sediment from any fuel storage
tank at the following intervals: weekly, oil changes
and refueling of the fuel tank. This will help prevent
water and/or sediment from being pumped from the
fuel storage tank and into the engine fuel tank.
Fuel Filters
It is possible that a primary fuel filter is installed
between the fuel tank and the engine fuel inlet. After
you change the fuel filter, always prime the fuel
system in order to remove air bubbles from the fuel
system. Refer to the Operation and Maintenance
Manual in the Maintenance Section for more
information on priming the fuel system.
The micron rating and the location of a primary fuel
filter is important in cold weather operation. The
primary fuel filter and the fuel supply line are the most
common components that are affected by cold fuel.
NOTICE
In order to maximize fuel system life and prevent pre-
mature wear out from abrasive particles in the fuel, a
two micron absolute high efficiency fuel filter is re-
quired for all Caterpillar Electronic Unit Injectors. Cat-
erpillar High Efficiency Fuel Filters meet these
requirements. Consult your Caterpillar dealer for the
proper part numbers.
Fuel Heaters
Fuel heaters help to prevent fuel filters from plugging
in cold weather due to waxing. A fuel heater should
be installed in the fuel system before the primary fuel
filter.
The following fuel heaters are recommended for
Caterpillar engines:
•
7C-3557
Fuel Heater Group
•
7C-3558
Heater Kit
For further information on fuel heaters, consult your
Caterpillar dealer.
Disconnect the fuel heater in warm weather.
Note:
Fuel heaters that are controlled by the water
temperature regulator or self-regulating fuel heaters
should be used with this engine. Fuel heaters that are
not controlled by the water temperature regulator can
heat the fuel in excess of 65°C (149°F). A loss of
engine power can occur if the fuel supply
temperature exceeds 37°C (100°F).
Note:
Heat exchanger type fuel heaters should have
a bypass provision in order to prevent overheating of
the fuel in warm weather operation.
SEBU8312-03
41
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Страница 16: ...13 Water Tank Drain Valve Lever Vacuum System Dump valve Suction Valve ...
Страница 17: ...14 Blower Vacuum ...
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Страница 245: ...SB 7 622 Page 12 1 PIPE STEEL 2 SCH 80 2 MED CARBON STEEL 1 2 FIGURE 9 GEAR DRIVER SK2150 ...
Страница 258: ...SB 7 622 Page 25 SECTION 8 PARTS LIST 300GAF810 B Ref Drawing ...
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