operators_manual

Engine Air Intake Filter Module
NO STEPNO STEP
PACCAR
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1. Main enclosure
2. Air filter
3. Housing
4. Screws
1. Park the vehicle. Set the parking
brake and turn the ignition OFF.
2. If air intake is located under the
hood, open hood.
3. Loosen the (4) screws, with a 10
mm wrench, that hold the housing
to the main filter enclosure. (These
screws will not come out of the
housing.)
4. Pull the air filter housing away from
the main enclosure to access the
filter.
5. The filter can be removed by
gently pulling directly out of the
main enclosure. Be careful not to
drop or tap the filter on the housing
during removal as this could loosen
dirt and dust trapped in the filter.
DO NOT clean and reuse the
original filter.
6. Inspect the sealing surface and
clean out any debris from the air
filter housing and enclosure before
installing a new filter. Be careful to
not push any contaminant into the
engine inlet.
7. Visually inspect the new filter and
the filter housing for damage,
especially the sealing surfaces and
filter media.
8. Install the filter housing. DO NOT
use the housing to drive the filter
into position. Tighten screws to 30
lb-in ± 5 (3.4 N·m ± 0.56).
9. Start the engine and allow the air
system to reach operating
pressure. Activate the under hood
air switch and verify that there are
no air leaks.
Ember Packs (Optional)
Certain vocational models will have an
Ember pack on either side of the hood
rather than the air pre-cleaner. This ember
pack is installed to keep burning embers
from entering the air filter.
Maintenance is required to ensure proper
performance of the pack. At each engine
intake filter change, remove these packs
and clean them with water. Be sure to rinse
with water in opposite direction of normal
air flow.
How to remove the ember pack:
1. Remove the 7 M6 fasteners using
an 8 mm wrench.
2. Pull the pack away from the hood
until the outboard hooks clear the
opening.
MAINTENANCE - Engine Maintenance
Y53-6047-2HEN (03/18) 245
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