GLASS-CAB 1158390 - Caterpillar

Always replace the secondary element. Do not attempt to reuse it by cleaning. Engine damage could result.
Service the air cleaner only with the engine stopped. Engine damage could result.
Replace the secondary air filter element under these conditions.
The primary air filter element is serviced for the third time.
The indicator for the air filter is illuminated after the primary air filter element has been serviced. Refer to Operation and Maintenance Manual, "Monitoring System".Park the machine on a level surface. Ensure that the parking brake is fully engaged. Lower the truck body or OEM attachment and shut off the engine.
Remove the primary air filter element.Refer to the Operation and Maintenance Manual, "Engine Air Filter Primary Element-Clean/Replace".
Illustration 1 g00681252
Carefully release the seal by rocking or twisting secondary air filter element (1). Remove the secondary air filter element from air cleaner housing (2) .
Cover the air inlet opening. Clean the inside of the air cleaner housing.
Uncover the air inlet opening. Install a new secondary air filter element. Ensure that the seal is made between the secondary air filter element and the air cleaner housing.
Install the primary air filter element. Refer to the Operation and Maintenance Manual, "Engine Air Filter Primary Element-Clean/Replace".
Install the air cleaner cover and engage the three latches.
Lower the hood. Refer to Operation and Maintenance Manual, "Hood Control".