
106 SEBU8219-01
Maintenance Section
Fuel System Primary Filter (Water Separator) Element - Replace
2. Close drain val
ve(3).
NOTICE
The water separator is under suction during normal
engine operati
on. Ensure that the drain valve is tight-
ened securely to help prevent air from entering the fuel
system.
i02544226
Fuel System Primary Filter
(Water Separa
tor) Element -
Replace
SMCS Code: 12
60-510-FQ; 1263-510-FQ
Personal injury or death may result from failure t o
adhere to the following procedures.
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
Do not fill the fuel filters with fuel before installing the
fuel filters
. The fuel will not be filtered and could be
contam inated. Contaminated fuel will cause acceler-
ated wear to fuel system parts.
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, “Cater-
pillar Dealer Service Tool Catalog” guide for tools
and supplies suitable to collect and contain fluids on
Caterpillar products.
Dispose of all fl uids according to local regulations and
mandates.
1. Turn the start switch to the OFF position or
disconnect the battery (starting motor) when
maintenance is performed on a fuel filter.
2. Shut off the fue
l supply.
g01274118
Illustration 79
(1) filter body
(2) bowl
(3) dra in valve
Note: Refer to this Operation and Maintenance
Manual, “General Hazard Information” that pertains
to containing fluid spillage.
3. Turn drain valve (3) counterclockwise in order to
open. The drain valve is located on the bottom
of the water separator.
4. Drain the water and sediment into a suitable
container. Dispose of the drained fluids and used
filters according to local regulations.
5. Close the drain valve.
6. Hold the bottom of the filter while you loosen the
bowl. Remove the bowl.
7. Turn the filter counterclockwise in order to loosen
the filter. If the filter will not turn, use a strap
wrenchtoloosenthefilter.
8. Remove th e filter and discard the filter. Clean the
bottom of the filter mounting base. Make sure that
all of the old filter seal is removed from the bottom
groove of the opening in the base.
9. Clean the water separator bowl and clean the
groove for the seal. Inspect the seal. If the seal is
worn or damaged, replace the seal.
10. Lubricate the seal with clean diesel fuel or
lubricate the seal with clean motor oil. Place the
seal in the groove on the water separator bowl.
11. Install the water separator bowl onto the new fuel
filter by hand. Tighten the bowl assembly to 15
15 N·m (11 lb ft).
12. Apply clean diesel fuel to the seal of the new filter.