Top 7 Reasons Floor Scrubbers Fail Part 2

15 Jul.,2024

 

Top 7 Reasons Floor Scrubbers Fail Part 2

Top 7 Reasons Floor Scrubbers Fail Part 2

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Floor scrubbers are a needed tool for keeping your floors clean. But as with any type of equipment they do require some maintenance to keep working properly.  It can be frustrating when your scrubber is not working and a job needs to be done. Many problems can be avoided just by having the operator become somewhat familiar with the basic functions of the machine and the common issues that can come up. This and the previous blog puts a spotlight on some of the most common problems that can come up when using a scrubber. Most of these can be prevented by routine maintenance. In this installment we will look at two more issues that knowing about ahead of time can save time and money.  

#3  

"My machine will only run for a few minutes and then the batteries are dead."

Over the years, our techinicians have heard this complaint countless times. Here's what to look for first. Sometimes it's not a battery problem; it's an operator problem. Make sure it is actually being plugged in to charge after it is used. After plugging the charger in, make sure it is actually powering up and charging. Can you see the amp reading display showing how many amps it is charging? Most newer machines come with onboard chargers. And amp reading should be seen if it is indeed charging. Notice the picture of this S.P.E. charger showing a reading of 7 amps.  

On most machines, this amp reading should go up to 15 to 20 amps for several hours and slowly trickle down. When the machine has correctly charged a reading of 0.0A should be seen on this particular charger. Many floor scrubbers have external chargers. On these, observe that the ample gauge needle is showing charging amps such as this picture of a Lestronic charger.

 

Again, the needle on the charger will initially go up to about 20 amps and slowly work its way down as it charges. Other external chargers such as the Lester E series won't have a gauge, but instead will have 3 lights - green, yellow, and red. Make sure it is flashing yellow. This shows that it is charging. Red will indicate a fault and green will show when it has completed the charge.   

On the onboard S.P.E. chargers, this is the display:

This is showing "bat" because the battery pack is not connected to the charger. Check to make sure the anderson connector connected to the charger is plugged into the battery pack. Also inspect the anderson connector to ensure that the contacts inside it are properly seated. Notice in this picture that the contacts are fully in place.  

Check for one of these metal contacts to be pushed back, cracks in the red or grey plastic housing, and that the 2 anderson plugs are being fully connected together. This can be problem on the onboard or the external chargers.  

If it is not charging, check the outlet it is plugged into for voltage. Is the circuit breaker tripped?  Also check that the power cord for the charger is properly plugged in.  

Now if the charger is charging properly and there is a run time issue, look at the batteries. First, check the battery cables. Is there corrosion on them? Take the cables off and clean the terminals to remove this. If they are overly corroded, it is time for new cables. With good cables now we can move on to check the batteries.       

#4  

Bad Batteries

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This is where it can get confusing for many. Lets try to make this as easy as possible.  

Step 1.  Make sure the batteries have been charged. Next, turn the vac motor on to create some load on the pack. This can do away with the "surface charger" that can be misleading. Putting a load on the batteries also helps to find the problem faster.  

Step 2.  Test the pack and each battery with a digital voltmeter. A voltmeter is needed to properly repair one's own equipment. Those reading this blog are probably trying to repair a floor scrubber and save a lot of money on costly repairs. The volt meter will come in handy for many other repairs that will be discussed in other blog posts.   

With the vac motor running, place the lead of the volt meter on the entire pack. Find the pack by following the wires going from the scrubber to the battery pack. Black and read wires will be seen. Notice the black and red circles on this picture. Black is negative and red is positive.   

In this example the machine is a 24v unit with two 12v batteries in series, so at least 24V DC should be seen even under a load.  

If the pack voltage is falling under 24v (or 36v on a 36v machine) the batteries probably need to be replaced. Also check the batteries individually. Most larger scrubbers will use four or six 6v batteries. These should stay above 6v under load (6.1 or 6.2v under load). This is a very simple way to check out your batteries. There is more to testing out batteries that involves using a hydrometer, but that will be discussed in another blog. If the batteries are more than a couple of years old and they don't pass this simple meter test, new batteries are  more than likely needed.

Deep cycle batteries only have a certain number of cycles in their lifetime. Our technicians have seen scrubber batteries last 4 or 5 years that were properly maintained and not heavily used. Most quality floor scrubber batteries, if used daily, will last 2 or 3 years. They will go longer than that but the run time quickly goes down. The key is proper maintenance. Never let the electrolyte level in lead acid batteries get low. Always make sure that it is over the top of the lead plates. Never leave the batteries discharged. This will ruin batteries very quickly.

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Automatic Scrubbers

The cleanliness of your facility has a large impact on the image you wish to project to employees and clients, as well as the perception of quality for your business as a whole. When it comes to first impressions, the quality of your floor maintenance program can have the greatest impact on perception as this is what people initially see upon entering your space and throughout your facility.  One big indication that a facility is not being maintained at the highest standard possible is when people encounter hallways with dust bunnies, scuff marks, or various pieces of debris littered about.  Adequate floor care is especially important in healthcare, education and industrial facilities as contaminants can compromise your building&#;s safety as unkempt floors are a hazard and add potential for injuries. It is critical to monitor and clean your building&#;s floors throughout each day, especially in high traffic areas. Maintaining floors in large scale facilities requires focus as daily cleaning can be monotonous, time consuming and difficult to achieve accountability.  For this reason, many companies seek outside help. Hiring an experienced company who can get the job done both efficiently and effectively is important to consider in order to save your business from excessive costs.  One of the most important tools for maintaining flooring in large scale facilities is the automatic floor scrubber, commonly known as the auto-scrubber. Auto-scrubbers require less physical labor and time commitments than the traditional mop and bucket approach and easily cover massive amounts real estate.  

Automatic scrubbers do it all. During use, either treated water or a cleaning solution is first released onto the floor and then scrubbed with the attached brush. At the same time, the left over solution is sucked up through the high-powered vacuum and trailing squeegee that ensures the floor is completely dry. The clean and dirty water are stored in separate tanks in order to prevent contamination and to increase the cleanliness of the floor.

Not only do these machines simplify and shorten the cleaning process, but they also reduce dry times. Automatic scrubbers are also more effective because they require less water than traditional methods. The reduction of water used not only provides a more prompt dry time, but it also provides for a more sustainable and eco-friendly process.  The difference in the cleanliness of floors with automatic scrubbers is paramount, as the scrubbers are much more intensive than traditional mops. The dirt and germs from the floor are removed more thoroughly through the vacuum and squeegee approach than that of a mop rinse.

Automatic floor scrubbers are battery operated and are available in both walk-behind and rider options. Features vary depending on the model, but the average battery life is between 2.5 and 4 hours, which will allow for 50,000 to 70,000 square feet of cleaning. There are a variety of makes and models available to accommodate different floor types. Deciding which type of scrubber depends on your building&#;s size and floor type. Although these machines are traditionally used on hard surface floors, some models can also clean carpet, marble, stone, and more. For high gloss or finished floors, softer brushes and pads are required; whereas, concrete floors in more industrial facilities can withstand a more aggressive cleaning.

Automatic floor scrubbers are the perfect solution for those seeking truly clean floors and a safer environment. If you are interested in learning more about which automatic scrubber or other cleaning services we would recommend for you, please feel free to reach out!

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