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Verify, verify and then verify!

Tuesday, August 22, 2017

In the perpetually confusing world we live in today, it is, I believe, the customer who should also hold some responsibility to the correctness of the parts they order. So when I listen to an unobjective person complaining that the wrong brushes were sent I shuttered. And now he is in a dire place to which he requires the correct brushes immediately and noted this to me in the strongest words.

I state, “of course I will attempt to help you, but you must give me all of the information and then we will see.”

The situation is that he ordered the correct amount of brushes required for the machine to function, which was two pieces. However, he states that everything else is wrong, even the style of brush. Further, he goes on to tell me that he received some sort of flat brushes and he needs long tube type brushes.

He states” I told them that I had a Nilfisk-Advance Model “2820 Adgressor” and needed two brushes.” And they sent them. I said, no, no, no that doesn’t sound right and I will explain why. First, you have to know whether the brushes are what I call #1 disc brush or #2 cylindrical brush. Also, I use the word brush because your machine is a scrubber. Remember brushes scrub and brooms sweep. So you want brushes. By your earlier statement of flat brushes received, it sounds as if you need the cylindrical brushes. However, secondly, I cannot tell you why someone would send you brushes just with the info you provided. It is incomplete. It sounds as if you have been dealing with an inexperienced company and this is often what occurs. Your model should read either Adgressor 2820-D or Adgressor 2820-C. This is key to the information required because D means Disc and C represents Cylindrical. It is very simple but you have to have this knowledge. He stated that he has Adgressor 2820-C which I have already concluded “of course you do.”

So we now have the answer, or do we? Well partly. We now know what type of brushes you need which are cylindrical, but what type of material do you want or do you know what you have been using? I don’t know exactly some type of grit they call it. Okay, we will figure this out as well. In order to decide, it must be determined what type of environment and/or floor surface you have. After a considerable lengthy conversation, it was determined that the floors were unsealed, uneven floors with steel shavings and particles flowing throughout the building also sometimes includes the warehouse area. In short, it is an older building with rough floors. I can relate to that and now let’s list what could be used in this situation. But we also want to decide the best choice for this particular situation. We see below three choices:
Part # 56412193 .035”/ 180 Grit
Part #56412194 .050”/ 80 Grit
Part #56412195 .070”/ 46 Grit

How would one determine the best brush for his environment. First we need a brush that is by far the most aggressive brush. We need this because the brush needs to hold up against the steel particles it is scrubbing. Steel is a very hard substance and could tear the bristle of the brush, hence cause brushes to breakdown quickly. So we then must say that the largest diameter bristle will stand the test of time. And which brush has the largest diameter bristle? It is the 46 grit #56412195. But you say you don’t understand why the smallest grit number (46) is the largest diameter. You see, I list the actual thickness as well which is .070” (seventy thousand of an inch is how it is said.) You wouldn’t think that twenty or even thirty-five thousand of an inch would not make such a substantial difference standing up to steel particles, but it does indeed. It also will break up the dirt and oil accompanying such particles. So you have your answer.

Now to quickly define the two brush systems available for this Model 2820.

First the 2820-D (disc brush system overview) This machine uses disc or aka: rotary brushes that are mounted next to each other. For maximum cleaning, the brushes rotate into one another meaning that one brush rotates counter-clockwise and the other clockwise. Each brush has a drive mechanism on top center of each brush which allows this rotation.

Second the 2820-C (cylindrical brush system overview) For this machine it uses cylinder or tube type brushes. They are mounting one in front of the other. For this style, the drive motor is mounted to one end of each brush with an idler hub on the other to allow even scrubbing that is also adjustable. This type of brush is perfect for cleaning surfaces with cracks and unevenness.

In closing, it should be noted that when one orders brushes always have the complete model and the serial number. The best way to ensure the reliability of ordering the correct parts is to have your own parts manual and to look up the parts yourself. Once the brush material is determined best for you, write the part number in your parts manual or make a pdf file listing. If you haven’t yet decided your best brush option and are still testing different materials for your machine and environment , simply e-mail me. With my 42 years experience, together we should be able to correctly determine your best avenue.

Thanks as always for reading.

Creamer’s Corner is a monthly conversation with Hi-Gear’s Mike Creamer giving you advise, technical assistance, brand comparisons and on the job stories on repairing, maintaining or replacing your sweeper/scrubber. For your comments or questions, please e-mail Mike at editorial@mhnetwork.com.

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