Perkins 904F-E28T Operation And Maintenance Manual page 94

94
Maintenance Section
Fuel System Secondary Filter - Replace
Refer to Systems Operation, Testing, and
Adjusting, "Cleanliness of Fuel System
Components" for detailed information on the
standards of cleanliness that must be observed
during ALL work on the fuel system.
Remove the Element
1. Turn the fuel supply valve (if equipped) to the OFF
position before performing this maintenance.
2. Place a suitable container under the fuel filter to
catch any fuel that might spill. Clean up any spilled
fuel. Clean the outside body of the filter assembly.
Illustration 57
3. Install a suitable tube onto drain (4). Open the
drain valve (3). Rotate the drain valve
counterclockwise. Two full turns are required.
Loosen vent screw (1).
4. Allow the fuel to drain into the container and
remove the tube.
5. Tighten the vent screw (1) to a torque of 2.5 N·m
(22 lb in).
6. Remove the filter bowl (2). Rotate the filter
assembly counterclockwise to remove the
assembly.
Illustration 58
7. Rotate the filter element (5) counterclockwise and
remove the filter element. Clean the filter bowl.
Install the Element
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Illustration 59
1. Locate the thread (7) in the filter element onto the
threads (8). Spin on the element and tighten the
drain valve (3) by hand.
2. Lubricate the O ring seal (6) with clean engine oil.
Do NOT fill the filter bowl (2) with fuel before the
filter assembly is installed.
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