GR2120 Yea or Nay

PHILIP8N · Jun 19, 2013

andre53 said:
My dealer checked it out at the end of the season and replaced the fan with a factory upgrade. The new fan has a slightly different shear pin collar.

I too have this blower, but it is still in crate, I have no plans to unpack it until November. Can you send pictures of these upgrades to I can check mine? If it has not been upgraded, I would like to address that asap. Thanks. Philip.

andre53 · Jun 20, 2013

Hopefully I was able to attach the photos of the new Fan and Hub assembly. As you will see it is quite different. The shear pin is still the same. Also I added a shot of what you have to "look forward" to. Good luck with the new orange tractor.

Andre

PHILIP8N · Jun 20, 2013

Andre, The pictures are very helpful. Thanks so much! Philip.

MiserableOldFart · Jun 21, 2013

Thanks for the info re: the temp light.

Cutting the high grass in the little back field seemed to be no problem for the GR2120, nor has it ever been a problem for the old Wheelhorse. The only problem is high stuff that bridges the deck and doesn't get cut, but since nobody except me sees it, I don't care. Cutting the field with the CUT and the bush hog RFM is pretty uncomfortable and sometimes downright scary with the terrain. Not a problem with the garden tractors. Bear in mind, that with the terrain being what it is, all the tractors are moving very slowly while cutting back there, which is probably the reason bogging has never been a problem. When done on schedule - Memorial Day, Fourth of July, Labor Day and (if needed) Columbus Day, it never gets too high for any of these machines. There is too much puckering with the CUT, and the little 42 inch deck on the Wheelhorse (which will be sold) takes way too long, but the GR2120 does it faster than either, and better than the Wheelhorse.

PHILIP8N · Jun 21, 2013

Check this rough cut mower out for the GR series. It is even rear discharge. Good demo with steep hills. Philip.

Kubota GR 2120 Hochgrasmäher - YouTube

CHDinCT · Jun 21, 2013

PHILIP8N said:
Check this rough cut mower out for the GR series. It is even rear discharge. Good demo with steep hills. Philip.

Kubota GR 2120 Hochgrasmäher - YouTube

Cool, but what where those blades on the deck right at the end? Looked like a second, shorter set of blades mounted perpendicular to the regular mower blades. Is this part of the mulching set up for the GR?

andre53 · Jun 21, 2013

Phillip,
I was looking more closely at this new fan/hub attachment and noticed a couple more differences (aside from the bolt/flange on the side.) First they appear to have eliminated the zerk fitting on the fan. Second, when you remove the shear bolt, the fan no longer rotates. My old fan would spin easily on the shaft. Finally, I am not sure what the purpose is of the bolt on the side... (you can't get a socket on it as it is too close to the shaft so you have to wrench it off. which wouldn't be bad except it has a locking nut.) So, I guess I have some questions for my dealer the next time I get down that way.

PHILIP8N · Jun 21, 2013

CHDinCT said:
Cool, but what where those blades on the deck right at the end? Looked like a second, shorter set of blades mounted perpendicular to the regular mower blades. Is this part of the mulching set up for the GR?

That is an aftermarket rough cut deck made in Denmark. Turns your GR into a vinyard bushog special. Philip.

Pete6114 · Jun 27, 2013

My blower has the updated parts! Glad about that.
I notice though, that when i raise the deck, the lever wants to get stuck in the raise position. I Have to make sure it returns to the center, by giving it a little push. It then snaps back....
Watch out for this...

PHILIP8N · Jun 27, 2013

Pete6114 said:
I notice though, that when i raise the deck, the lever wants to get stuck in the raise position. I Have to make sure it returns to the center, by giving it a little push. It then snaps back....
Watch out for this...

I noticed that on mine too. Do not like it. Thought about taking it back to dealer in off season and have them look at it. Also thinking about adding a light return spring to lever. Philip.

houstonscott · Jun 27, 2013

When I hit the button to keep blade turning while backing I noticed it will not turn off when pressed again. Don't really understand this feature. What advantage is there to not having that on while mowing.

HS

andre53 · Jun 27, 2013

Haven't had a problem with the lift lever sticking.

I did talk to my dealer regarding the new hub. As I expected, the "side" bolt" is the new shear pin. Since your unit came with it standard, do you have a part number for the shear bolt & nut? If you do I would appreciate knowing what it is. (On mine it looks like a grade 5 bolt...)

PHILIP8N · Jun 27, 2013

houstonscott said:
When I hit the button to keep blade turning while backing I noticed it will not turn off when pressed again. Don't really understand this feature. What advantage is there to not having that on while mowing.

HS

'Reverse Mowing Awareness', or something like that. It is a safety feature. I suppose it is to make you think twice before mowing in reverse so you do not back over and mow over you neighbors kid, or somehthing like that. Very easy to bypass. Send me mail if you are interested. Philip.

Pete6114 · Jun 27, 2013

Took the back cover off and squirted lube on the linkages and spring. The lever goes back to neutral now after raising the deck.
Here is a pic of the arm rests

Pete6114 · Jun 27, 2013

andre53 said:
Haven't had a problem with the lift lever sticking.

I did talk to my dealer regarding the new hub. As I expected, the "side" bolt" is the new shear pin. Since your unit came with it standard, do you have a part number for the shear bolt & nut? If you do I would appreciate knowing what it is. (On mine it looks like a grade 5 bolt...)

I havent looked in the blower manual where it lists the part numbers, but this is what they told me on the phone
The Fan sheer bolt is 7006004465

BTW.....after 6.2 hours of cutting, the tank is still half full. Love how far diesel goes!!!

Pete6114 · Oct 26, 2013

andre53 said:
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Hopefully I was able to attach the photos of the new Fan and Hub assembly. As you will see it is quite different. The shear pin is still the same. Also I added a shot of what you have to "look forward" to. Good luck with the new orange tractor.

Andre

Where did you buy the Cab at? Did you have to drill a bunch of holes?

andre53 · Oct 29, 2013

The cab is from "Original Tractor Cab" Original Tractor Cab. You can find their products sold either directly from them or other online sources. Installation is fairly easy, no holes to drill. It is a custom fit for the GR2120. I had the same brand cab on my old Toro 520H for over 20 years and it was still like new when I traded it in. The new cab has some nice improvements. I did get the glass windshield on the new cab with the manual windshield wiper. It is a pretty good option but you can definitely live without it.

The cab is really great. The only minor issue I have is due to the reverse air flow on the GR2120 it tends to suck in snow at the door seams... My old tractor was just the reverse and blew all the hot air into the cab which was very nice. Anyway, this season I plan on putting an air vent in the back of the cab to reduce that problem. Just wish their was an easy way to vent the heat from the radiator into the cab. Need to think about that a bit. Note: I have more pics of the cab posted on Orangetractortalk...

PHILIP8N · Oct 29, 2013

It will take a little work, but you can get a pusher fan from Multi-Wing that will blow hot air into your cab during wintertime. You will have to remove fan, measure, and provide details, but they can make you a new fan. I would not use it for summer operation though. Philip.

rodnutrandy 1946 · Nov 18, 2014

I bought a new 2014 Gr2120 with 54 inch deck. Only complaint I had was wanting a bumper, which I ended up adapting off my Gt5000 sears. I mowed all summer (live in a woods ) and loaded my leaf vacuum a slew of times. The mower pulled hills good , never slipped a tire going up hill and went down steep hills without sliding or speeding up. It pulled my loaded leaf vacuum trailer without straining its self. After a summer of mowing and cleaning up leaves, I just hit 50 hours, so next item is oil and filter change. Can't say how long it will hold up, but no problems so far, and it just sips fuel , Very happy owner ( I am still trying to figure out how I picked up leaves ( filling trailer every 1/2 hour, and having to go back in woods to empty it, and cleaned up my complete yard of leaves in less time than it takes me to mow the same area )

houstonscott · Nov 19, 2014

End of season two with mine. Just about 100 hours. Did the fifty hour service myself. Will get a engine oil and filter change before spring. No issues at all, very nice machine. HS