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Maintenance Section
Fuel System Secondary Filter Number Two - Replace
i01559538
Fuel System Secondary Filter
Number Two - Replace
SMCS Code: 1261-510-SE
S/N: 5SK743-Up
Personal injury or death can result from a fire.
Fuel leaked or spilled onto hot surfaces or electri-
cal components can cause a fire.
Clean up all leaked or spilled fuel. Do not smoke
while working on the fuel system.
Turn the disconnect switch OFF or disconnect the
battery when changing fuel filters.
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing fluids.
Refer to Special Publication, NENG2500, “Caterpillar
Tools and Shop Products Guide” for tools and supplies
suitable to collect and contain fluids on Caterpillar
products.
Dispose of all fluids according to local regulations and
mandates.
NOTICE
Do not fill fuel filters with fuel before installing them.
Contaminated fuel will cause accelerated wear to fuel
system parts.
Open the engine access door. The secondary fuel
filter is located on the right side of the machine.
Note: This machine is equipped with two secondary
spin-on filters on a single filter base. The upper
filter is upside-down. Always drain the inverted filter
before you remove either filter.
g00810175
Illustration 198
1. To drain upper filter (2) (inverted filter), place a
suitable container under the drain valves and
open drain valve (3). Then, immediately open
drain valve (4) and allow the fuel to drain into
the suitable container.
When the fuel stops draining, keep the drain
valves open and loosen the inverted filter by a
1/4 turn. As the filter is loosened, additional fuel
may drain from the drain valves. Keep turning
the filter by 1/4 turns until fuel does not drain
from the drain valves. Then, close the drain
valves and properly dispose of the fuel.
Note: Make sure that the drain valves are opened in
the proper order. If you open the wrong drain valve
first, an air lock in the fuel system may occur. This
will not allow fuel to drain from the upper filter.
2. Remove upper filter (2).
3. Inspect the fuel filter element for debris by
cutting the filter open. Dispose of the used fuel
filter element properly.
4. Clean the filter mounting base. Make sure that
all of the used seal is removed from the filter
mounting base.
g00101318
Illustration 199