Posted by Mike Creamer on

 Mike Creamer at Hi-Gear


When a sweeper’s basic design has not changed in over 45 years, in my opinion, it has stood the test of time. While the model has changed somewhat from generation to generation, it has maintained the basics of the original.

When in motion, the machine moves forward the side brush moves the dirt and debris into the center of the sweeper. At this point, the main brush sweeps/directs all the debris into the debris hopper. The large pieces of debris remain at the bottom of the hopper where the vacuum (suction) motor sucks the light dust/particles into the hopper filter. Every other sweeper has copied this design down through the ages. You might be wondering what is this sweeper and who makes it? It is the Tennant Model 92 Ride-On Sweeper

The first generation of this sweeper started with the Model 92 in 1973, and had the four cylinder Jeep and F163 Continental engines. If the sweeper required a diesel engine, they used the four-cylinder Perkins Model 4.108. Then the next generation was the Model 95, which is still basic to the Model 92. At this time, we are also starting to see some electronics begin to be introduced into the design, such as a side brush actuator. So instead of a level to operate the side brush, the operator would just push a button to control the up and down and the off and on. Next, we have the Model 97, which is also still that basic design of the Model 92. From this point on the Model number type, changed to the Model 800.

 Some other things have also changed such as using a filter box or panel filter in the hopper box instead of a filter bag. All of these refinements and modifications we still see in today’s Tennant Model 810. Still true to the original Model 92, it is Tennant’s largest ride-on industrial sweeper being made.

In the design of the main brush vacuum chamber, which were incorporated into the first sweeper, there are rubber skirts positioned around the main broom to create a vacuum chamber. This allows the vac motor in the hopper to vacuum the debris with the help of the main broom.  If there are streaks of debris behind the machine while it is moving forward sweeping, then maintenance needs to be done to be determine the cause.

The type of streaks can help to determine the cause of the problem. If it were a large portion of areas not being swept, I may determine that the main broom or vacuum system is damaged. The skirts could also be damaged, either torn or areas of skirting missing, which is causing streaks. These tears also allow air into the chamber, reducing the amount of vacuum required for sweeping.

So get under the machine and see if your skirts are showing and make sure there are not tears or damage to your machine. You can also remove the main broom on the side of the machine and look into the chamber from this angle. If your skirts are damaged, replace them immediately. Our line of sweeper/scrubber parts can help you solve any of these issues. Click HERE to see our available parts that can fit any make/model.  



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