I have a JD 790 with a Mid-Mount Mower. The manual on the mower indicates checking the gearbox oil by removing the Allen screw on the side of the gearbox and if no oil appears, then add oil via the top of the gearbox (after removing the vent plug). Well, my gearbox has *no* vent plug on top of the gearbox. How am I supposed to add oil to the gearbox?
Mowing John Deere 790 with Mid-Mount (Belly) Mower
- Thread starter djrich
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arrabil
Veteran Member
Can you post a picture?
Willl
Elite Member
Totally smooth top with nothing but 4 bolts holding it down ?
RoyJackson
Rest in Peace
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- John Deere 4052R Cab,, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements
If all else fails, contact your dealer.
Sometimes Deere hasn't been good at updating manuals. Or, the manual supplied (especially if you bought used) isn't the correct manual for the belly mower (different supplier, for example).
If you call a dealer, it might help if you can find a serial number on the mower.
Sometimes Deere hasn't been good at updating manuals. Or, the manual supplied (especially if you bought used) isn't the correct manual for the belly mower (different supplier, for example).
If you call a dealer, it might help if you can find a serial number on the mower.
kennyd
Advertiser
On my 60" MMM, I just removed the gearbox from the mower deck when I serviced it. It was the easiest way to get the old oil out...and it was only a few bolts holding it on.
jnporcello
New member
You can squirt gear oil in the check hole via a plastic tubing gear oil filler with a pump, such as the kind used to fill rear end pumpkins in cars/trucks.
dklistul
Bronze Member
Yeah, just make sure the deck is fairly level, remove the fill hole plug, and squirt the new stuff in there until it's up to the bottom of the hole. Put the plug back in and go.
My MMM gear box does not have a vent on top either. I remove the top plug and fill until until the oil starts running out.
By the way, great tractor and mower combination, same as mine. Initially it took a lot of effort to get it leveled and the height adjusted but it cuts really well..
Best Wishes
Art:thumbsup:
By the way, great tractor and mower combination, same as mine. Initially it took a lot of effort to get it leveled and the height adjusted but it cuts really well..
Best Wishes
Art:thumbsup:
fishkc10boom
New member
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- MF 2310 TLB
I have a question about gear oil in my mmm MF2310. I have been servicing this tractor myself. It is a 08' model and I bought it new June 2010. I checked the gearbox on the mmm and the fluid is below the top but pours freely out of the drain hole. It looks very thin, but clean. I did not get a service manual with it and it is not marked anywhere on the gear box what weight to use. Suggestions?
