Things to check on a Scrubber Dryer to ensure it is doing a top job.
Scrubber Dryers need a bit of TLC to keep them working in top order. They work great when new, then quickly the performance tails off, if they are not very well looked after.
1/ Check the Squeegees
Have a look at the squeegees first. Take the squeegee bar off the machine, if possible and make sure it is clean, if not clean it out.
Check the squeegee blades, see below. You should have a flat on the top of the blade, as on the left hand image.
Replace them, if needed. You can't get a good result with worn, ripped or dirty blades.
2/ Check the Squeegee hose (if it has one)
Check the hose or pipe that connects the squeegee bar with the recovery tank. If this looks dirty or blocked inside, take it off (if you can) and clean out by running warm water through until it is clear. Re-fit the hose.
3/ Check the recovery tank filter
Open the recovery tank and find the filter, if there is one, it will be on the outlet to the vacuum motor, there may be a ping pong ball inside the filter cage.
Make sure this filter is completely clean. If not remove, clean and refit.
4/ Check the solution filter
Find the solution filter, most machines have them. It is likely be underneath the machine inside a plastic bowl, see image. Some machines like the image on the right, removing the filter will train the solution tank, so make sure you take the machine outside first.
If the filter is in a bowl underneath, turn off the solution tap and unscrew the bowl, remove the filter.
Once you have removed the filter, clean in under warm running water. Clean the filter even if it looks clean, sometimes you get a gel caused by chemical sitting in the tank too long and this blocks the filter, even though you can hardly see it, so clean the filter anyway.
5/ Check the machine is putting down enough solution
Now you have checked the basics, its time to start checking the set-up of the machine. A very common problem with Scrubber Dryers is, not having enough solution to move the dirt, causing blockages in the machines and streaky floors.
Put the brush/pad & holder down, leave the squeegee up (if you can) and the vacuum switched off, switch the solution on and run the machine for a couple of metres.
Now stop and look at what the machine has put down on the floor. You need to have enough solution on the floor to transport the dirt. You are looking for a good covering of solution on the floor and not just a damp smudge.
Adjust the solution tap, if there is one, and try again.
If you can't get enough solution out with the solution tap fully open, and you have cleaned the solution filter as above, then you need to dig deeper. Make sure there isn't a solution tap switched off somewhere or a pipe blocked.
Also make sure the solution is not too foamy on the floor, if it is the solution is too strong.
Once you are happy with the solution coming out, move the machine back to where you started and do the next step...
6/ Check the set up of the squeegee
Put the squeegee bar down and switch on the vacuum, now move the machine forward in the cleaning mode. As the machine is moving forward bend down and check how the squeegee is sitting on the floor (you must be moving with the vacuum on for this to work)
Make sure you have a nice even kiss of the blades on on the floor. Adjust the squeegee bar until you get this. Make sure the blades are not squashing into the floor too much as this will jam the two blades together and stop you picking up anything.
Play around with this adjustment until you get a perfect result. Just remember, after each adjustment move the machine forward with the vacuum on and recheck how it is sitting on the floor.
7/ Check the Battery levels
This obviously doesn't apply if the machine hasn't got batteries. It also doesn't apply if the batteries are maintenance-free, however if they are wet batteries with top up caps, it is very important.
Make sure you top the battery levels up once a week. Be careful here, always wear full PPE when doing this as the battery acid is very corrosive. Always use demineralised water (Tap water will ruin the battery) and always top the battery up before placing the machine on charge (Topping up a charged battery will discharge it)
If you carry out these steps and you are still unhappy with the results, it's time to call an engineer in.
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