So my z425 is very loud when the mower is engaged. It's about 7 or 8 years old, and has always been rather loud but seems to have gotten worse as it's gotten older. I've removed the deck belt and checked all the pulleys/bearings and they all appear to be rotating freely (at least as far as I can tell spinning them manually). I've got new blades to try (next spring), but I was wondering if the blades need to be aligned? Or does the blade alignment not matter? I thought I vaguely remember reading somewhere that the center blade needs to be at a 90 degree angle with the 2 outside blades (that may have been a different mower).
Thanks for any input.
Thanks for any input.