Mowing F935 50" deck/gear box question

mattlok · May 8, 2012

Hi,
I bought a F935 with the 50" deck i was wondering if anyone had one they could post a pic of. I think the guy who had it did some rigging on it and i want to make sure everything is correct. Also what kind of oil goes in the deck gearbox and what is the fill procedure. Thanks in advance for your help. This is a great site!!

beenthere · May 8, 2012

:welcome: to the forum.

Might be a good idea to get a tech manual, or at least the operating manual for the F935. Will be very helpful down the road a bit.

jdparts.com could also be a good source for you to look at the original parts.

mattlok · May 8, 2012

I bought the tech manual. It isn't clear about where the tensioner spring is supposed to hook, and there isn't a obvious spot on the deck where it should hook. It also says nothing about the deck gear box. I had the deck off and lifted up and oil came out the vent hole. I figured someone on here could help. I don't want to have to buy the owners manual too. JD is proud enough for the parts I'm having to buy. Thanks!

joecdeere · May 9, 2012

90 wt gear oil is fine for the gear case. there should be two pipe or allen head plugs on the
gear box sides. Fill through the upper until it comes out the lower.

On the 50 deck the spring hooked to the pulley arm and then to a post / bolt or eyelet on the right rear area of the deck right by the rear of the inside of the covers. Hook the spring to the arm and then pull towards the middle rear of the deck. When the spring is a bit over half tentioned you should have an idea of where it should be hooking

zzvyb6 · May 9, 2012

An F935 normally is equipped with a 72" deck, but could come with a 60" or 76" deck. If you have a 50" deck, that came on an F910, F912, and F915 mower.

Pray tell, what is the motor model numer ? An F935 is 22 hp diesel.

A new set of decals is all it takes to upgrade the motor !

mattlok · May 10, 2012

@joecdeere thanks that is exactly what i needed to know.
@zzvyb6 yes i know this isnt the deck that came with it, however it does work. Its is the 935 with the yanmar diesel the guy i bought it from just put a different deck on it for some reason.

Thanks for the help.