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354
Revision A
6.
If the secondary element passes inspection, clean the primary element as follows:
a.
Use compressed air
NOT
exceeding 400 kPa (60 psi), and a dry element cleaner gun.
b.
Holding the nozzle next to the inner surface only, move the nozzle up and down the element
’
s pleats.
c.
After three cleanings (or at the specified interval), replace the primary element.
7.
Repeat the inspection procedure before reinstalling the primary filter element.
Removing and Installing Secondary Air Filter
Replace the secondary air filter annually or after every third primary filter change, even if it appears clean.
1000100
A
Figure 5.64: Secondary Filter Element
NOTE:
Refer to
8.2.4 Filter Part Numbers, page 478
for the replacement
filter part number.
If secondary air filter (A) is dirty, inspect the primary filter and
the filter canister to determine the reason for the
contamination.
•
Examine the filter canister for cracks. Replace the
canister if necessary.
•
Ensure that the filter sealing surfaces are soft, flexible,
and are sealing properly. Hard seals may allow debris
through to the secondary filter.
•
Ensure that the canister retaining latches are secure.
IMPORTANT:
•
Do
NOT
remove the secondary filter element unless it needs replacing. For the secondary filter part number, refer to
8.2.4 Filter Part Numbers, page 478
.
•
Do
NOT
attempt to clean the secondary element. The secondary element must be replaced.
1.
Remove the primary filter. For instructions, refer to
Removing Primary Air Filter, page 349
.
IMPORTANT:
When replacing the secondary filter, reinsert the new filter as soon as possible to prevent dust and dirt from entering
the air intake. Do
NOT
remove the secondary filter unless a replacement is available for installation.
1007893
A
Figure 5.65: Secondary Filter Element
2.
Remove secondary element (A) from the canister.
3.
Insert new secondary filter element (A) into the canister,
oriented seal-first. Push the secondary element until the
seal is seated inside the canister.
4.
Reinstall the primary filter element. For instructions, refer
to
