Freightliner FLA/FLB/FLC/FLD/FLL. Manual — part 36
5.
Lightly lubricate the threads on the sight bowl
with oil, then thread the sight bowl into the bot-
tom of the fuel separator.
6.
Hand-tighten until the gasket is in full contact
with the fuel separator, then tighten an additional
1/4 to 1/3 turn.
7.
Check that the drain valve is tightened and
closed.
8.
Prime the fuel separator.
8.1
Remove the vacuum breaker fitting and
fill the unit with diesel fuel.
8.2
Install and close the vacuum breaker fit-
ting when the unit is full of fuel.
IMPORTANT: The fitting must be air-tight
and the valve closed.
Racor Fuel Separator Element
Replacement
The only service necessary on Racor fuel separators
is to replace the filter element. See
Racor 325R and 330R
WARNING
Diesel fuel is flammable and can ignite if exposed
to an open flame, intense heat, or other ignition
source. Do not drain fuel near, or expose fuel
vapor to open flame or intense heat. Exposure to
open flame or intense heat could start a fire, pos-
sibly resulting in personal injury or property dam-
age. When working on a fuel system, have a fire
extinguisher within easy reach.
1.
Disconnect the water sensor probe connector, if
equipped.
2.
Place a suitable container under the fuel
heater/water separator, then drain the fuel from
the fuel heater/water separator by opening the
drain valve.
3.
Remove the filter element and collection bowl
together, by turning the filter element off of the
mounting head.
4.
Remove the filter element from the collection
bowl by turning the collection bowl; then discard
the filter element.
05/28/97
f470194
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1
2
3
12
9
10
10
11
3
9
1
2
4
5
6
7
8
1.
Mounting Hole
2.
Mounting Head
3.
Heater Connector
4.
Filter Element
5.
Collection Bowl
6.
Water Sensor
7.
Water Sensor
Connector
8.
Drain Valve
9.
Vacuum Switch
Connector
10. Vacuum Switch
11. Fuel Outlet
12. Fuel Inlet
Fig. 2, Racor 325R Fuel Heater/Water Separator (330R
similar)
Fuel
47
47/2
5.
Remove and discard the bowl O-ring; then clean
the bowl of debris using diesel fuel only. Clean
the bowl O-ring seat with a shop cloth.
6.
Lubricate the new bowl O-ring with clean diesel
fuel or motor oil; then seat it into the collection
bowl.
7.
Attach the collection bowl to a new filter element,
hand-tight. Do not use tools.
8.
Lubricate the new filter element square-cut gas-
ket with clean diesel fuel or motor oil.
9.
Fill the filter and bowl assembly with clean diesel
fuel.
10. Spin the filter and bowl assembly onto the
mounting head until the gasket contacts the head
base; then turn it an additional 1/3 to 3/4 of a
turn.
11. Connect the water sensor probe connector if
equipped.
12. Start the engine and check for fuel leaks. Repair
all fuel leaks with the engine OFF.
Racor 460R
WARNING
Diesel fuel is flammable and can ignite if exposed
to an open flame, intense heat, or other ignition
source. Do not drain fuel near, or expose fuel
vapor to open flame or intense heat. Exposure to
open flame or intense heat could start a fire, pos-
sibly resulting in personal injury or property dam-
age. When working on a fuel system, have a fire
extinguisher within easy reach.
1.
Disconnect the water sensor probe connector, if
equipped. See
2.
Disconnect the bowl heater connector, if
equipped.
3.
Place a suitable container under the fuel
heater/water separator, then loosen the vent plug
and drain the fuel from the fuel heater/water
separator by opening the drain valve.
4.
Remove the filter element and collection bowl
together, by turning the filter element off of the
mounting head.
5.
Remove the filter element from the collection
bowl by turning the collection bowl; then discard
the filter element.
6.
Remove and discard the bowl O-ring; then clean
the bowl of debris using diesel fuel only. Clean
the bowl O-ring seat with a shop cloth.
7.
Lubricate the new bowl O-ring with clean diesel
fuel or motor oil; then seat it into the contaminant
bowl.
05/28/97
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2
3
3
4
4
5
5
1
6
6
7
8
9
10
11
4
4
2
1.
Mounting Head
2.
Vent Plug
3.
Fuel Outlet
4.
Fuel Inlet
5.
Fuel Priming Pump
6.
Mounting Hole
7.
Filter Element
8.
Collection Bowl
9.
Water Sensor Probe
10. Fuel Heater Wire
11. Drain Valve
Fig. 3, Racor 460R Fuel Heater/Water Separator
Fuel
47
47/3
8.
Attach the collection bowl to a new filter element,
hand-tight. Do not use tools.
9.
Lubricate the new filter element square-cut gas-
ket with clean diesel fuel or motor oil.
10. Spin the filter and bowl assembly onto the
mounting head until the gasket contacts the head
base; then turn it an additional 1/3 to 3/4 of a
turn.
11. Connect the water sensor probe connector if
equipped.
12. Connect the bowl heater connector if equipped.
13. Loosen the vent plug, then operate the primer
pump until the fuel purges at the vent plug. Then
close the vent plug.
14. Start the engine and check for fuel leaks. Repair
all fuel leaks with the engine OFF.
Racor 490R
WARNING
Diesel fuel is flammable and can ignite if exposed
to an open flame, intense heat, or other ignition
source. Do not drain fuel near, or expose fuel
vapor to open flame or intense heat. Exposure to
open flame or intense heat could start a fire, pos-
sibly resulting in personal injury or property dam-
age. When working on a fuel system, have a fire
extinguisher within easy reach.
1.
Drain off some fuel by loosening the vent plug
and opening the drain valve. See
2.
Disconnect the water sensor and heater connec-
tions, if equipped.
3.
Remove the element and bowl, together, by turn-
ing counterclockwise.
4.
Remove the bowl from the element, and clean
the O-ring.
5.
Apply a coating of clean fuel or motor oil to the
new O-ring and element seal.
6.
Spin the bowl onto the new element, then spin
them both onto the filter head snugly, by hand
only.
IMPORTANT: Do not use tools to tighten.
7.
Connect the water sensor and heater connec-
tors, if equipped.
8.
Prime the fuel separator.
8.1
Loosen the vent plug. Then operate the
primer pump until the fuel purges at the
vent plug.
8.2
Close the vent plug.
9.
Start the engine and check for fuel leaks.
10. Shut down the engine and correct any fuel leaks.
Racor 690R and 6120R
WARNING
Diesel fuel is flammable and can ignite if exposed
to an open flame, intense heat, or other ignition
source. Do not drain fuel near, or expose fuel
vapor to open flame or intense heat. Exposure to
open flame or intense heat could start a fire, pos-
sibly resulting in personal injury or property dam-
5
4
3
1
2
06/25/97
f470147
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7
11
10
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8
1.
Mounting Head
2.
Fuel Primer Pump
3.
Metal Vent Plug
4.
Bowl O-Ring
5.
Bowl Bevel-Cut
Gasket
6.
Bowl Probe Plug
7.
Water Sensor Probe
8.
Heater Connector
9.
Bowl Drain Valve
Assembly
10. Bowl with Drain and
Water Sensor
11. Service Element
Fig. 4, Racor 490R Fuel Separator
Fuel
47
47/4
age. When working on a fuel system, have a fire
extinguisher within easy reach.
1.
Drain off some fuel by loosening the vent plug
and opening the drain valve. See
2.
Disconnect the water sensor and heater connec-
tions, if equipped.
3.
Remove the element and bowl, together, by turn-
ing counterclockwise.
4.
Remove the bowl from the element, and clean
the O-ring.
5.
Apply a coating of clean fuel or motor oil to the
new O-ring and element seal.
6.
Spin the bowl onto the new element, then spin
them both onto the filter head snugly, by hand
only.
IMPORTANT: Do not use tools to tighten.
7.
Connect the water sensor and heater connec-
tors, if equipped.
8.
Prime the fuel separator.
8.1
Remove the 3/8-inch metal plug located
at the top of the fuel/water separator (see
, Ref. 2), and manually fill the unit
with diesel fuel.
8.2
Install and tighten the 3/8-inch metal plug
when the unit is full.
9.
Start the engine and check for fuel leaks.
10. Shut down the engine and correct any fuel leaks.
Racor 900FG and 1000FG
WARNING
Diesel fuel is flammable and can ignite if exposed
to an open flame, intense heat, or other ignition
source. Do not drain fuel near, or expose fuel
vapor to open flame or intense heat. Exposure to
open flame or intense heat could start a fire, pos-
sibly resulting in personal injury or property dam-
age. When working on a fuel system, have a fire
extinguisher within easy reach.
1.
Remove the lid by turning the T-handle. See
2.
Remove the filter element by raising the handle
built into the filter element; then carefully turn the
filter element while lifting up.
3.
Remove and discard the lid gasket; then replace
it with and new one.
4.
Lubricate the lid gasket with clean diesel fuel;
then seat it into the lid.
5.
Fill the unit with clean diesel fuel.
6.
Install the lid; then tighten it hand-tight, or to 10
lbf·ft (14 N·m).
7.
Start the engine and check for fuel leaks. Repair
all fuel leaks with the engine OFF.
09/15/95
f470148
1
2
3
4
10
9
7
8
6
5
1.
Mounting Head
2.
Metal Plug, 3/8" NPT
3.
Bowl O-Ring
4.
Bowl Bevel-Cut
Gasket
5.
Bowl Probe Plug
6.
Water Sensor Probe
7.
Heater Connector
8.
Bowl Drain Valve
Assembly
9.
Bowl with Drain and
Water Sensor
10. Service Element
Fig. 5, Racor 690R Fuel/Water Separator (6120R
Similar)
Fuel
47
47/5
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