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How to clean the excavator air conditioner filter element？

Excavator Cabin Air Filter applied for Caterpillar excavator 312 313 320 330 336 349 307C 311C 312C 320C

1. Clean the air conditioner filter

1. Remove the wing bolts from the inspection window at the bottom left rear of the cab, and then take out the inner circulation air conditioner filter element

2. Clean the air conditioner filter element with compressed air. If the air conditioner filter element is oily or dirty, flush it with neutral medium. After rinsing in water, allow to dry thoroughly before reuse.

The air conditioner filter element should be replaced with a new one every year. If the air conditioner filter element is blocked and cannot be cleaned with pressurized air or water, the air conditioner filter element should be replaced immediately.

The air conditioner filter element must be installed in the correct orientation. When installing the A/C filter element, keep the protrusion facing the front of the machine.

2. Clean the external circulation air conditioner filter element

1. Open the cover on the left rear of the cab with the key of the start switch, then open the cover by hand, and remove the air conditioner filter element in the cover.

2. Clean the air conditioner filter element with compressed air. If the air conditioner filter element is oily or dirty, flush it with neutral medium. After rinsing in water, allow to dry thoroughly before reuse.

The air conditioner filter element should be replaced with a new one every year. If the air conditioner filter element is blocked and cannot be cleaned with pressurized air or water, the air conditioner filter element should be replaced immediately.

3. After cleaning, put the air conditioner filter element in its original position and close the cover. Use the key of the starter switch to lock the cover. Don’t forget to remove the key from the starter switch.

The external circulation air conditioner filter element must also be installed in the correct direction. When installing, insert the long (L) end of the air conditioner filter element into the filter box first. If the short end is installed first, the cover will not close.

NOTE: As a guide, the A/C filter should be cleaned every 500 hours, but more frequently when using the machine in a dusty work site. If the air conditioner filter element is clogged, the air volume will decrease and abnormal noise can be heard from the air conditioner unit. If compressed air is used, dust may fly up and cause serious personal injury. Be sure to use goggles, dust cover or other protective equipment.

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