BX2380 MMM Linkage Problem

Tojo4158

New member
Jul 14, 2020
4
0
1
USA
I have a BX2380 ~1 year old < 100 hrs on it and I think I might have (and probably always had) some issue with the MMM linkage.

Problem:
- Deck does not raise fully to top position
- Can't turn height adjustment knob
- Deck wobbles / bangs around when driving
- Gap between rear link and stopper is much wider than spec in manual

More than once in the past, I've been able to temporarily solve this issue by tightening the rear link adjustment bolt behind the left rear tire. But the bolt is already all the way in and can not be tightened any further.

Additionally, as of yesterday, it seems like the rear link bar might be sometimes contacting the PTO on-off lever. Yesterday, I raised mower and the engine died and I was unable to restart it. I eventually realized it wouldn't start because it thought the PTO was engaged. I tried to move the lever on and then off, but it was "jammed" in position.

I almost wonder if the left hydraulic lift arm on the rear isn't lifting as far as it should. I think the effect would be the mower link not pulling back fully and the MMM therefore not raising all the way.

Anyone experience any similar issues?
 

tinkerwitheverything

Active member

Equipment
bx2370-1
Jun 3, 2015
319
72
28
Manitoba
1 year old. I'am sure you have warrenty . Not sure what to say about the arm touching the pto on / off lever. Seems like it's something you should have your dealer look at and fix. Somethings not right ,especially if it's been like this since new ???
 

ElPedro

New member

Equipment
BX2860
Jun 16, 2022
5
0
1
Old Boston,OH
I'm having a similar problem with my '22 bx2680. I raise the deck all the way up, but cannot get the adjustment knob to go to "top". I've adjusted a linkage behind the rear left tire - its a bolt with a stop nut. was 17mm if I recall correctly. Anyway, when I backed out the bolt, the rear attachment went up about an inch higher than previously, but I still couldn't get the mmm knob to go into "top".

Any thoughts on what else this could be?
 

ElPedro

New member

Equipment
BX2860
Jun 16, 2022
5
0
1
Old Boston,OH
I figured it out. Hope this helps someone else down the line...

I had to adjust the bolt inward, not outward. I got it working with the deck off. When I put the deck back on, it didn't work again. Had to adjust the bolt inwards about another 1/2". Now it works.