GR2110 - I'm not impressed.

[locknut]

3/2011 member late reply
reverse speed. as i see it.
The fwd pedal on the gr2110 moves the linkage by the fan blade further than reverse. thus more pump pressure for fwd. The direction is the same on the linkage pump mechanism to compare pedal stroke in fwd and rev.
It appears the stop bolt under the reverse is restricting travel .Should be able to adjust the reverse pedal stop bolt under the pedal and re-adjust the switch that the pedal hits in reverse getting more speed. But check with a dealer to see if this is a safety issue for speed. i like to see how things work ,and this is only my opinion.

I fixed mine except with one more step.Needed to grind the bottom rear of the pedal off to make it really open up the flow.Goes as fast in reverse as it goes forward,now.Likely engineered that the pedal hitting the floorboard would be the limiting factor,regardless of adjustment.Safety issue;full bore reverse,hard turn,foot slips off pedal,could throw you off the tractor.

 

[gunnyad]

Dont know how to post so I,ll use a reply.--- new gr2110 tractor
A week ago, I adjusted the stop bolt and backed up a steep grade about 35 feet. and 40 degrees or steeper. It,s steep. 3 1/2 hrs on tractor.

second cut today and after finishing- 2-- less than a acre hiily yards, I tried to back up the same hill. It was struggling at the bottom.
I checked the rear movement of stroke and still was the same.
After a few hours and everything was cooled down ,it went right up the hill in reverse just as it should.
Nice tractor but the hydraulics heat up and lose the ability to pump proper pressure. Kabota dropped the ball on this . Not hard to figure it,s heat related
must be hard on the seals etc.
Wonder how the pump will hold up over time?
gunnyad


thanks for info on the pedal locknut.

 

[lhansman]

I have a very steep hill at the rear of my property to an upper kids play area. When I was purchasing my B21 I actually was at the dealer during a Kubota event and so had an opportunity to speak with a Kubota rep who seemed very knowledgeable.

He indicated that if I was going up a steep hill and the tractor was slowing down that I should actually reduce pressure on the HST pedal. This would reduce the amount of slippage in the HST and the B21 would go up the hill but at a slower pace in the same gear.

My hill is steep enough that the B21 would go up in mid range empty but with a full bucket I would have to use low range and a couple of times I tried the recommended technique and it worked. I have noticed the same thing with my B26. I don't know if this is your problem, but if you are not having problems with cool HST fluid, then I wonder if slippage is the problem once the fluid is hot. You might want to try using a little less pressure on the HST pedal and see if that helps.

 

[locknut]

Sounds normal to me.I always mow the front bank first,when the fluid is cool.It does lose power as it heats up.Probably normal for most hydro tractors.I make sure the fluid is topped off and change it every 100hrs.Hope it lasts a long time-expensive to rebuild.

 

[gunnyad]

I.m thinking of adding a finned cooler to the rear of the gr2110 hyd.
.There is a 6 inch or so rubber hose a the rear end ,facing inward toward the opposite rear tire. This should be a low pressure area. A finned cooler with a seperate 12 v. fan may extend pump life. Also give backup capabilities on hills,when hot.
does anyone plow snow with a rear blade in reverse ,any hills or flat? overheat?
Any ideas ,on cooling ? why worry about the warrantee ,the reverse issue doesn,t seemed to be covered for hilly terrain.

amsoil hyd fluid seems to have a better heat range, anyone try it?

 

[Old Coot]

I thought I had mine fixed up. But after mowing for over an hour it won't back up a small incline. I can't believe Kubota doesn't fix this problem. It is such a shame because I love most features of this tractor. But it isn't worth a crap if you have a lot of hills. I'm going to talk to the dealer and if can't get it fixed I'm going to contact Kubota and try to get a Kubota rep to come and try it and tell me that is the way it is suppoed to be.

 

[Old Coot]

Sounds normal to me.I always mow the front bank first,when the fluid is cool.It does lose power as it heats up.Probably normal for most hydro tractors.I make sure the fluid is topped off and change it every 100hrs.Hope it lasts a long time-expensive to rebuild.

Have you tried the synthetic fluid? I was wondering if that would help.

 

[locknut]

Have you tried the synthetic fluid? I was wondering if that would help.

No, but do use the Kubota brand Super UDT.Gunny suggestion of an auxillary cooler with a fan sounds like a good idea.Don't know where I'd put it on mine.Open area underneath is filled with extra framework and a toobox

 

[gunnyad]

No, but do use the Kubota brand Super UDT.Gunny suggestion of an auxillary cooler with a fan sounds like a good idea.Don't know where I'd put it on mine.Open area underneath is filled with extra framework and a toobox

The cooler worked but what my friend And I found was that when He originally took the hose off the top tube ,no fluid came out the top from the pump, but slowly rose out the hose from the bottom.
With the cooler ,the steering was jerky at the start ,cut and was happy with the backing up results,but in the end ,found the jerky steering still there on cold start up ,so he pulled off the hose and found fluid came out the top tube ,the cooler somehow prevented the top tube from draining and caused the pump to retain fluid to chatter the steering ,maybe cooler needs to be lower equal to the fluid level. if the cooler was tilted backward and did not drain and held more oil than the top tube ,I suppose it could hold the top tube from draining . any ideas. maybe someday ,try again. .
how do I post A message without reply ,or quote?

 

[gunnyad]

My friend mounted the cooler horizontal, do to hose arraingment the top metal tractor tube , went to the bottom cooler inlet, and the cooler top outlet, to the bottom tractor metal tube.
this would keep the coolerfluid level full to the outlet ,while not running.
this could possible cause it to hold the top tube to pump with fluid causing the cold start steering chatter.

re-arrainging hoses may help and tilting the cooler for drainage.

Any comments.
wont get to try this for a while ,removed the cooler for now.
Friend is busy ,so dont know when we can get to it again, injury stops me from doing much .