WRENCH A. 8M9379 - Caterpillar

An air recirculation filter element plugged with dust will result in decreased performance and service life to the air conditioner or cab heater.To prevent decreased performance, clean the filter element, as required.
Illustration 1 g02017613The air conditioner filter is on the lower left side of the cab behind the seat.
Slide the operator seat forward.
Slide the filter element upward.
Tap the air filter to remove the dirt. Do not use compressed air to clean the filter.
After you clean the filter element, inspect the filter element. If the filter element is damaged or badly contaminated, use a new filter element. Make sure that the filter element is dry.
Install the filter element.
Failure to reinstall the filter element for the air conditioning system will contaminate and damage the system components.