520 Stoker Motor Tripping Out

Yes, I have been dripping 2-3 drops to fill those up every month or two.
I used to work at a place that had 100 yr old machines with cams and followers that ran 120+ hours a week,
all oil points (100+) were oiled every shift at 8 hours, some even during being ran.

I will be ordering a backup this week, just have to match up numbers n stuff.

Must have stop/started over 100 times this weekend, so I am stumped as to wth was the problem.
My only guess is maybe something in that gear diff box was hanging something up or ?

I was looking at this one here

http://www.amazon.com/Marathon-O600-Frame-Burner- ... B0057YFD60

1/8 hp is what is on now, so this would be direct fit, I just have to match numbers

You want model 4782, not O600. The 4782 motor is fully enclosed, and I have one running beautifully on my 520.

Also, a 1/6 (even 1/4 and 1/3) HP motor will bolt on with no issues...but in my experience the 1/8 HP motors are usually the most quiet at startup and the least expensive. Even a 56N frame motor will fit...I have one on my brothers 520; it was new old stock and $50 to the door. Made in USA also.