u/friscocliff

I’ve been out here reading about similar problems and possible solutions, but no luck yet. My problem started about 3 weeks ago when the mower was running perfectly before.

First, I wanted to get your thoughts on the difference between a real D125 repaired by Chickanic and the JD diagram by John Deere for a D125. See the two pics.

Unless my belt is inside out, chickanic’s belt is correct based on the direction of the V on the belt.

Here is what I’ve done so far:

1. New drive belt
2. New spline pulley
3. On 5/4, new hydrostatic fan (I destroyed the other one trying to get the snap ring off!).
4. On 5/4, new “inserts” in the groove of each tire (although I’ve read that is not needed on the D125).

I’ve watched dozens of videos and tried many things.

A few things worth mentioning:

1. I can push the mower with the disengagement lever in or out.
2. The bearings are good in the idler pulley.

I have a Cub Cadet that I’m getting back from a tune-up tomorrow, but I’d really like to figure this out rather than pay someone else.

HELP!! 😁