Western Star 47X 2020, Maintenance Manual

Page: 60 / 166

through the element (inside to outside) to loosen
surface dirt and to dry the element. If it is not
damaged, the sintered metallic filter element will
last the life of the vehicle.
Wipe out the filter housing with a clean, dry, lint-
free rag. Clean and inspect the O-rings and end
cap. Replace any parts that are damaged.
5. Install the large O-ring, then the filter element
(small end first) into the filter housing.
6. Install the small O-ring in the end cap, then in-
stall the end cap and tighten it until firm.
CAUTION
A leaking air filter or air lines can cause slow or
hard shifting of the transmission, and eventual
transmission damage.
7. Start the engine, and build pressure in the air
system. Check for air leaks at the filter housing
and air line connections; repair any leaks.
1
2
3
4
5
6
7
f260052a 10/17/2001
1. Air Regulator
2. Housing
3. Large O-Ring
4. Filter Element
5. Small O-Ring
6. End Cap
7. Plug
Fig. 6, Eaton Fuller Transmission Air Filter/Regulator
Components
Transmission
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47X and 49X Maintenance Manual, June 2021
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