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It depends on the year of your mower. The older models had 3. I’m not sure when they changed but my 2020 model only has 2.

Thanks brother, Bad Boy recommends every 250 hours or once a year. I don’t put nearly that many hours on it per season so I change mine every other year. But according to the owners manual it does recommend every 250 hours or every year.

Thank you!!

With the rear tires off you can’t raise the opposite side higher. Without the tire on the low side, it would be too unstable.

@@tonyjones1290 leave the opposite tire on, on the ground. You won't have to drop it much, just enough to get a good angle to drain. Been doing it on my Bad Boy for many years or put a floor jack on the opposite side with the spindle in the cup of the jack.

My BB Maverick is 2019. Took it to shop first two years for annual service. Haven't had it there since 2021 and.my steering arms are obviously needing service. I'm not understanding of the mechanism at all, looked and fluid level is just a tad low, I suspected it was worse as loose as the left arm is, and right arm seems stiffer than normal. Definitely needs a fluid change, but am I correct reading you saying the 20w50 is actually motor oil? I like this video, but unsure where that nut is you put the socket wrench on. I'm in house now, so will head to garage and see if I can find it. Appreciate both of your inputs. Ron

Yes, recommended oil is 20-50. I use synthetic With no issues.

@@ChiefRRossIt is motor oil. 20W-50 is what is recommended. I use Bad Boy brand because my local Tractor Supply has it. Any good synthetic brand will work. The vent plug is near the top of the hydrostatic gear box. The drive belt on my ZT Elite runs just below it.

I appreciate the comment.

Z530m unfortunately doesn't have drain plugs on the tuff torq TZT7-U. It can be drained, but you would have to remove the trans and flip it over. The z530r and z545r have the TZT7-M which has drain plugs. Very stupid decision on John Deere to not have drain plugs on a $6000 mower.

Kohler recommends to fill the filter to the bottom of the threads, wait two minutes and install the filter. Search "Kohler oil change" and the factory instructional video for the 7000 Series will come up.

Thank you. I do need to change my spark plugs, air filter, and fuel filter. I’ll make another video in a week or so when I change that out. I’ll link it to this video.

According to Kohler the engine can be safely operated if the oil level is anywhere between the “F” full mark and the “L” Low mark. It is just as hard on the engine if the oil is overfilled as it is if not enough oil. You can certainly fill it all the way to the “F” mark, I like to keep it just below to ensure it is not overfilled. Either way the engine can be safely operated.