Dual Element Air Cleaners
The dual element air cleaner contains a primary air
cleaner element and a secondary air cleaner
element. The primary air cleaner element can be
used up to six times if the element has been properly
cleaned and inspected. The primary air cleaner
element should be replaced at least one time per
year. This replacement should be performed
regardless of the number of cleanings.
The secondary air cleaner element is not serviceable
or washable. The secondary air cleaner element
should be removed and discarded for every three
cleanings of the primary air cleaner element. When
the engine is operating in environments that are
dusty or dirty, air cleaner elements may require more
frequent replacement.
Illustration 41 g00736431
(1) Cover
(2) Primary air cleaner element
(3) Secondary air cleaner element
(4) Air inlet for the turbocharger
1. Remove the cover. Remove the primary air cleaner
element.
2. The secondary air cleaner element should be
removed and discarded for every three cleanings
of the primary air cleaner element.
Note: Refer to “Cleaning the Primary Air Cleaner
Elements”.
3. Cover the air inlet to the turbocharger with tape in
order to keep out dirt.
4. Clean the inside of the air cleaner cover and body
with a clean, dry cloth.
5. Remove the tape from the air inlet of the
turbocharger. Install the secondary air cleaner
element. Install a primary air cleaner element that
is new or cleaned.
6. Install the air cleaner cover.
7. Reset the air cleaner service indicator.
Cleaning the Primary Air Cleaner
Elements
NOTICE
Observe the following guidelines if you attempt to
clean the filter element:
Do not tap or strike the filter element in order to re-
move dust.
Do not wash the filter element.
Use low pressure compressed air in order to remove
the dust from the filter element. Air pressure must not
exceed 207 kPa (30 psi). Direct the air flow up the
pleats and down the pleats from the inside of the filter
element. Take extreme care in order to avoid damage
to the pleats.
Do not use air filters with damaged pleats, gaskets,
or seals. Dirt entering the engine will cause damage
to engine components.
The primary air cleaner element can be used up to
six times if the element has been properly cleaned
and inspected. When the primary air cleaner element
is cleaned, check for rips or tears in the filter material.
The primary air cleaner element should be replaced
at least one time per year. This replacement should
be performed regardless of the number of cleanings.
Use clean primary air cleaner elements while dirty
elements are being cleaned.
NOTICE
Do not clean the air cleaner elements by bumping or
tapping. This could damage the seals. Do not use el-
ements with damaged pleats, gaskets or seals. Dam-
aged elements will allow dirt to pass through. Engine
damage could result.
Visually inspect the primary air cleaner elements
before cleaning. Inspect the air cleaner elements for
damage to the seal, the gaskets, and the outer cover.
Discard any damaged air cleaner elements.
There are two common methods that are used to
clean primary air cleaner elements:
• Pressurized air
• Vacuum cleaning
Pressurized Air
Pressurized air can be used to clean primary air
cleaner elements that have not been cleaned more
than two times. Pressurized air will not remove
deposits of carbon and oil. Use filtered, dry air with a
maximum pressure of 207 kPa (30 psi).
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SEBU8731-04
Maintenance Section
If Equipped