Change the Air Filter, Check the Evaporator

If it’s time to change recirc air filters in your cab, go a little further and check the evaporator for caked-on dirt that can hamper its performance. 

During normal operation, the evaporator picks up moisture from the air which condenses on the fins as water droplets before draining out of the system. This dehumidification action helps make the operator feel more comfortable in the cab. 

The downside is that moisture on the fins attracts dust. We see this a lot on backhoes, skid steers, and other equipment where the operator runs the A/C with the window open so he can communicate with a coworker on the ground.

Most filters for recirculated air are the low-restriction type. They aren’t designed to remove large amounts of dust from the air before it reaches the evaporator. Next time you change the filter (following recommended inspection intervals), check the evaporator. It may need a good cleaning to make sure the operator is getting the steady stream of cool air he expects.

Red Dot Powered Filtration System Improves HVAC Life

Red Dot Corp. introduces the Red Dot Precleaner/Filter/Pressurizer with Gideon® Technology, a powered filtration system designed to protect operators from harmful particulates and extend HVAC service intervals on machines with enclosed cabs. Applications include mining, construction, crash/fire/rescue, and other severe-service operations.

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Fresh-air Filters: Clean Up the (Cab) Environment

The fresh-air intake filter not only captures dust, dirt, and other airborne particles that can irritate the driver, it stops them from interfering with the performance of the heater and air conditioner. Changing the fresh-air filter at regular intervals is one of the best things you can do to improve HVAC performance.

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3 Ways HVAC Creates Opportunities to Upsell

Gary Hansen, vice-president of engineering at Red Dot, offers three HVAC system enhancements not to overlook.

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How a Simple Inspection Can Boost HVAC Parts Sales

Want to improve uptime and reduce maintenance costs? Promote a basic visual check of major A/C components, hose connections, and fittings at regular intervals, like with every engine-oil change. This routine has another benefit: it can generate business for your parts and service department.

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It's Winter. Don’t Give Your A/C the Cold Shoulder

Your A/C removes excess moisture from the air, so it has a big effect on how quickly and effectively the defroster can clear the windshield. If you want to improve the performance of your defroster and increase forward visibility for your drivers or equipment operators, have your air conditioner inspected before winter

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