TP-6255 7/06 25Section 3 Intake and Exhaust System
Section 3 Intake and Exhaust System
3.1 Air Intake Silencer/Cleaner
At the interval specified in the service schedule, clean or
replace the air intake silencer element. Clean the
silencer more frequently if the generator set operates in
dirty, dusty conditions. Follow one of the procedures
described below.
8/9/10/13/20/28/32EOZD and
6.5/7/9/11/17/17.5/23/27EFOZD Models:
A dry-type air cleaner silences and filters the intake air.
The air intake silencer assembly connects to the intake
manifold via a flexible hose.
Air Cleaner Service/Replacement Procedure:
1. Release the spring clips to open the housing and
remove the air silencer element. See Figure 3-1.
2. Tap the element lightly against a flat surface to
dislodge loose surface dirt. Do not clean in any
liquid or use compressed air as these will damage
the filter element.
3. Examine the element and housing for damage and
wear. Replace the element or housing if necessary.
4. Wipe the cover and base with a clean rag to remove
any dirt. Make sure that the sealing surfaces fit
correctly, and reattach the spring clips.
Figure 3-1 Air Cleaner Element Element
14/15.5/23/24EOZD and
11.5/13/20EFOZD Models:
These models use a round, polyurethane,
sound-absorbing-type intake silencer to silence the
intake air drawn into the cylinder head from the intake
port. Besides providing a silencing effect, the silencer
also acts as an air cleaner. Clean the silencer more
frequently if operating in dirty, dusty conditions. See
Figure 3-2 and refer to the following procedure.
Air Intake Silencer Cleaning Procedure:
1. Remove the intake silencer cover.
2. Remove the element from the cover and inspect it.
To clean the element, continue to step 3. If the
element is damaged or in poor condition, replace
the element; skip step 3 and go to step 4. If the
element is clean go to step 6.
1. Air intake silencer cover
2. Air intake silencer element
3. Base
4. Clamp
5. Turbocharger
1
2
3
4
5
TP-6071-31
Figure 3-2 Air Intake Silencer
3. Wash the element in mild detergent and water
solution. Rinse the element and allow it to air dry.
4. Lightly coat the foam element with oil.
5. Squeeze out any excess oil.
6. Wipe the cover and base with a clean rag to remove
any dirt. Replace the base if it is damaged.
7. Reassemble the element and cover assembly to
the intake silencer base. Make sure the sealing
surfaces fit properly.
8. Direct the air intake silencer duct down and away
from engine.
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