HOSE 7Y4562 - Caterpillar

Illustration 1 g00620409The alert indicator for air flow restriction will notify the operator that the filters may need cleaning.
Service the air cleaner only with the engine stopped. Engine damage could result.
The air filters are located on the right platform. There are two air cleaners to service.
Illustration 2 g00622879
Air cleaners without front covers
(1) Engine air filter primary element
(2) Engine air filter secondary element
Loosen the retaining clips and remove the filter covers.
Remove engine air filter primary element (1) from each air cleaner housing.
Illustration 3 g00281659
Clean the inside of the air cleaner housing.
Inspect the primary element (1). If the pleats, the gaskets, or the seals are damaged, discard the primary element. Replace a damaged primary element with a clean primary element.
Do not clean the primary element by bumping or tapping them. Do not use primary element with damaged pleats, gaskets or seals. Engine damage can result.Make sure the cleaned primary element is completely dry before installing into the air cleaner housing. Water remaining in the primary element can cause false indications of contamination in Scheduled Oil Sampling test results.
If the primary element is not damaged, clean the primary element. The primary element can be cleaned by using the following methods:
Air pressure
Water pressure
Detergent washingWhen you use air pressure, the maximum air pressure is 205 kPa (30 psi). When you use water pressure, the maximum water pressure is 280 kPa (40 psi).
Illustration 4 g00281660
When you clean the inside pleats and the outside pleats, direct the air along the pleats or direct the water along the pleats. The primary element can be washed in a solution that consists of warm water and of nonsudsing household detergent. Fully rinse the pleats. Allow the primary element to air dry completely.
Inspect the primary element after you clean the primary element. Do not use a primary element if the pleats, the gaskets or the seals are damaged.
Cover the clean primary element. Store the primary element in a clean, dry location. A primary element may be cleaned for a maximum of six times. Also replace the primary element if the primary element has been in service for one year.
Install a clean primary element. Install the filter covers. Tighten the retaining clips. Note: Make sure that the primary filter element is properly seated and sealed.
Start the engine. Run the engine at torque converter stall speed. If the alert indicator remains on, install a new primary element. Also, if the exhaust smoke is black, install a new primary element.
If a new primary element is installed and the alert indicator remains ON, replace engine air filter secondary element (2). Also, replace the secondary element after you service the primary element for the third time. See this Operation and Maintenance Manual, "Engine Air Filter Secondary Element - Replace".