Hydrovac vacuum trucks are powerful, specialized machines that make many difficult jobs much easier. Keeping these trucks working at their peak performance requires good maintenance, or problems - particularly with the blower - can reduce efficiency or cause damage. When searching for vac trucks for sale, always check the maintenance records to ensure the units have received good care. That care should then continue after the purchase. Blower and filter maintenance can affect performance of the entire unit, so following the tips referenced below to keep hydrovac trucks performing their best is recommended.

Maintain the Blower

The blower is the heart of a vac trucks for sale, so maintaining and protecting it should always be a priority. Despite this, blowers require relatively little maintenance. The main requirement to keep a blower functioning properly, is to change the blower oil and check oil levels frequently - ensuring they are where they should be. As long as the blower has a full oil reservoir, and the oil remains clean, most will last long beyond their life expectancy, performing well the entire time. Follow the manufacturer's recommendations as to how often the oil should be changed, for each specific blower. Based on this, and the amount and type of work the truck sees, a schedule for oil changes can be made.

Replace the Filter Bags

Keeping the blower clean from water and debris is another thing that must be taken into consideration. This is why changing the blower filter bags regularly is critical. These filters prevent moisture and pumped waste from entering the blower’s air stream, as moisture and dirt can cause corrosion and other damage. Clogged filter bags not only carry the possibility of allowing moisture through to the blower, but also restricts the airflow to it - reducing the blower’s overall power, and making the truck less efficient. Filter bags that are not changed frequently can result in damage to the equipment, and increased fuel consumption.

The biggest question regarding filter bags is how often they should be changed. This will differ based on the type, and the amount of work a truck does. Different materials create varying amounts of dirt in the filter bag. The goal is to be aware of when the bag becomes dirty enough to change it. Therefore, checking the bag regularly is important. Performing restriction tests every so often is another way to determine whether the bag needs changing. If airflow to the blower is restricted, it is time to change the filter bag. While this is not something that must be done every day, observation in the way the truck is performaning is generally a good way to sense when a restriction test, or changing out the filter bag is warranted.

Watch for Debris in the Exhaust

One important check that should be performed every day is to watch the exhaust for debris that may be passing through. If the exhaust is black, or there is obvious waste material passing with it, this means there is waste material passing through the blower. The filter bag should be changed immediately, and further observation made to ensure that the exhaust clears out with that change. If not, and the problem is not the filter bag, further diagnostics as to why waste material is passing through the blower is necessary.

By keeping up with these two simple vacuum truck maintenance tasks, a company can ensure the heart of their trucks lasts a long time. When adding to the work fleet, check the filter bags and exhaust on any vac trucks for sale being considered, and be sure these vacuum trucks are in top shape, and ready to go to work, before making a purchase. Protecting the blower with oil and filter bag changes is easy to do, saving both time and money, while ensuring peak performance!

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