BASE GP-VALVE COVER & INJ HARN 3172717 - Caterpillar

Illustration 1 g01443836
The fumes disposal filter is on the right side of the engine.
(1) Fumes disposal filter The service interval of the fumes disposal filter will be affected by the following items:
Engine load
Concentration of soot
Condition of the engine
Illustration 2 g01443851
Fumes disposal filter
(2) Plastic cover
(3) Service indicator
(4) Base for the canister
(5) Latches
(6) Canister The fumes disposal filter is equipped with a service indicator. If the fumes disposal filter becomes plugged prior to the normal service interval, increased restriction of the filter will cause the vacuum to become positive. When the pressure continues to rise, the service indicator will show through the cap. The service indicator indicates the need for the fumes disposal filter to be changed. Reset the service indicator by using the following procedure:Resetting the Service Indicator
Remove the plastic cover.
Push down on the service indicator.
Replace the plastic cover. Replacing the Fumes Disposal Filter
Note: When possible, perform the maintenance while the engine is off.
Release the latches that hold the canister to the filter base assembly.
Removal of the canister may be difficult while the engine is operating. The canister has negative air pressure while the engine is operating.
Lower the canister in order to expose the element. There may be oil in the bottom of the canister. Avoid spilling the oil.
Remove the filter element by pulling down. Dispose of the used element properly.
Remove the O-ring assembly on the top end cap of the used element.
Replace the O-ring Seal on the bottom of the filter base assembly.
Install a new O-ring on the top end cap of the element. Install the element.
Replace the canister and align the canister with the boss on the filter base assembly.
Clamp the latches in the CLOSED position.