L3650 Battery OK-won't engage starter

[shultzk]

Hi newbie here with an L3650. Not an HST, has rear PTO and creep. I cannot get it to engage the starter consistently and we suspect it is a safety switch malfunction or bad ground ? The dash lights come, go off as normal on but then nothing. Fuses OK. Awhile ago, I noticed a little buzz right after the glow plug went out and I turned the key. I hear the solenoid clicking OK. Tractor has 450 hours and we had it for three years since 300 hours with zero problems. (Love my tractor !)

 

[4Kings]

Did you have the battery load tested to verify it's ok.

I've had two starting issues in the last year or so. First time the problem was a bad battery cable. If you still have the original molded cables, they can begin to break down from all the vibration. All I did was replace the molded terminal with a clamp on... problem solved.

Just a few weeks ago it wouldn't start again. I tested the battery myself and it seemed ok, got the corrected voltages from it. Finally after a couple days of trying other stuff, I took the battery to have it load tested... it failed.

Replaced battery... fired right up