Tennant 8400 - Service Manual

Other manuals for Tennant 8400

Operator's Manual96 pages

Questions and Answers

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mendezdonnaAug 22, 2025
How to stop excessive dusting with my Tennant Scrubber?
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  Alan WallaceAug 22, 2025
  If your Tennant Scrubber is producing excessive dust, several factors could be the cause. Check the brush skirts and dust seals for wear, damage, or incorrect adjustment; replace or adjust them as needed. The hopper dust filter might be clogged, so shake, clean, or replace it. Inspect the vacuum hose for damage and replace it if necessary. If the vacuum fan has failed, contact TENNANT service personnel. Lastly, check if the Thermo Sentry has tripped and reset it if it has.
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Charles DaltonAug 25, 2025
Why does my Tennant 8400 have poor sweeping performance?
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  igarrisonAug 26, 2025
  If your Tennant Scrubber has poor sweeping performance, start by checking the brush bristles for wear and replace the brushes if needed. Make sure the main and side brushes are adjusted properly. Remove any debris caught in the main brush drive mechanism. If the main or side brush drive has failed, contact TENNANT service personnel. Ensure the hopper is not full and empty it if it is. Replace worn or damaged hopper lip skirts. If you are using the wrong sweeping brush, contact your TENNANT representative for recommendations.
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Jordan PhillipsAug 28, 2025
What to do if my Tennant 8400 Scrubber has little or no solution flow?
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  Renee KingAug 28, 2025
  If your Tennant Scrubber isn't dispensing enough solution, the solution tank might be empty; fill it. Check the solution control linkage and replace or adjust the cable if it's out of adjustment. Also, inspect the solution supply lines for blockages and flush them if necessary. Ensure the ES switch is turned on.
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mcculloughwalterAug 31, 2025
Why is my Tennant 8400 Scrubber not scrubbing well?
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  Andrew CamposAug 31, 2025
  If your Tennant Scrubber isn't scrubbing effectively, begin by checking the scrub brushes for any caught debris and remove it. Ensure that you are using the correct detergent and brushes; consult with your TENNANT representative for advice. If the scrub brushes are worn, replace them.
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Nicole CarlsonSep 3, 2025
How to fix ES system when it does not fill solution tank in Tennant Scrubber?
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  Katherine SanchezSep 3, 2025
  If the ES system on your Tennant Scrubber isn't filling the solution tank, the solution pump or lines might be clogged; flush the ES system. Check if the ES float is stuck and clean it of debris. The ES pump filter could also be clogged; clean the filter. Ensure that the water levels in the tanks are sufficient and add water if needed.
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lauren95Sep 6, 2025
What to do if Tennant 8400 is dusting?
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  Jessica SmithSep 6, 2025
  If your Tennant Scrubber is dusting, there are several potential causes. First, the dust filter might be clogged and needs to be removed and cleaned. Alternatively, the filter may not be seated correctly against its seals; in this case, remove and reinstall the filter. The dust filter could also be damaged, requiring replacement. Another possibility is that the hopper is full, so empty the hopper. Clogged ducts can also cause dusting, so clean the ducts. Additionally, the ducts might not be engaging seals, or the seals may be damaged, necessitating adjustment or replacement of the seals. Improperly adjusted or damaged dust skirts can also lead to dusting, so adjust or replace them. Finally, the vacuum fan may not be operating because the fan drive sheave or impeller key is broken.
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Joseph NelsonSep 9, 2025
How to adjust Tennant 8400 Scrubber main brush for optimal sweeping?
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  ericjenkinsSep 9, 2025
  To adjust the Tennant Scrubber main brush for optimal sweeping, adjust the main brush lift handle to obtain the correct brush pattern. Also, ensure the main brush is level with the floor by adjusting the brush pattern. Check and adjust the hopper lip or dust skirt if they are not properly adjusted.
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Amy BentonSep 10, 2025
Why is the Tennant Scrubber not sweeping properly?
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  lpearsonSep 12, 2025
  The Tennant Scrubber might not be sweeping properly due to several reasons. The main brush could be worn out and needs replacement, or it may not be properly adjusted and needs adjustment of the main brush lift handle to obtain the correct brush pattern. Also, the main brush may not be level with the floor and needs brush pattern adjustment. Check if the hopper is full and empty it if necessary. The dust filter could be clogged, requiring removal and cleaning. Debris may be jamming the brush, so remove any obstructions. Finally, the hopper lip or dust skirt might not be properly adjusted and should be adjusted.
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kcaseySep 12, 2025
What to do if Tennant 8400 Scrubber hopper is full?
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  Ronald GlennSep 12, 2025
  If the Tennant Scrubber hopper is full, you should empty it.
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Deanna KochNov 15, 2025
Why is my Tennant 8400 leaving water behind?
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  Patrick WoodsNov 15, 2025
  If your Tennant Scrubber is leaving water behind, it could be due to several reasons. Start by checking the rear squeegee blades for wear and rotate or replace them if necessary. Also, ensure the rear squeegee is properly adjusted. Side squeegees should be lowered and their blades checked for wear and replaced if needed, also ensure they are adjusted correctly. Other potential causes include a demister cover that isn't seated properly (reseat it) or worn demister cover seals (replace them). Reducing the solution flow to the floor might also help. Check for clogs in the vacuum hose and flush them out. Ensure the recovery tank isn't full, and the float isn't stuck; clean it if it is. Remove any debris caught on the rear squeegee. If foam is filling the recovery tank, empty it and use less de...