Problems with Mahindra 15 Series

[George2615]

Dougster,
The inch an hour drop was with an empty bucket. It was almost 2-3 inches an hour with a few hundred pounds in it. That was how I found it was leaking, Had a load of topsoil in the bucket that I was putting in several small flower beds for the wife. Every time I turned around for another shovel full the bucket seemed lower. When I finished I checked its drop rate empty and based on the loader manual troubleshooting guide it lead me to believe I had an internal leak in the valve and my dealer agreed.
I've seen other tractors in fields with the bucket up for a week or two at a time without any drop. I wish mine had zero leakage, even the new valve allows bucket drop but nowhere's near the inch per hour of the old one. My dealer has had some tractors on his lot with the buckets up for display that he says have been up for weeks without starting the tractors.

 

[Dougster]

Dougster,
The inch an hour drop was with an empty bucket. It was almost 2-3 inches an hour with a few hundred pounds in it. That was how I found it was leaking, Had a load of topsoil in the bucket that I was putting in several small flower beds for the wife. Every time I turned around for another shovel full the bucket seemed lower. When I finished I checked its drop rate empty and based on the loader manual troubleshooting guide it lead me to believe I had an internal leak in the valve and my dealer agreed.
I've seen other tractors in fields with the bucket up for a week or two at a time without any drop. I wish mine had zero leakage, even the new valve allows bucket drop but nowhere's near the inch per hour of the old one. My dealer has had some tractors on his lot with the buckets up for display that he says have been up for weeks without starting the tractors.

Thanks for the explanation. I can see where that kind of FEL drop would be troubling. Good that you got it fixed under warranty!

By the way... Is it accurate to say that cylinder seals tighten and leak less under load... and therefore any marked increased "relaxation" under load is likely to be from a leaking valve? Conversely, if relaxation is somewhat higher with no load, than the valve is probably fine and the cylinder seals may be leaking? Or am I out to lunch on this armchair theory?

Dougster

 

[rback33]

Thanks for the explanation. I can see where that kind of FEL drop would be troubling. Good that you got it fixed under warranty!

By the way... Is it accurate to say that cylinder seals tighten and leak less under load... and therefore any marked increased "relaxation" under load is likely to be from a leaking valve? Conversely, if relaxation is somewhat higher with no load, than the valve is probably fine and the cylinder seals may be leaking? Or am I out to lunch on this armchair theory?

Dougster

Sorry to say Doug, but yer out to lunch on the armchair theory. Increased pressure makes them leak faster. There is a proper method for checking leak down though. Most of the dealers on have had service school training on it already.

 

[Dougster]

Sorry to say Doug, but yer out to lunch on the armchair theory. Increased pressure makes them leak faster. There is a proper method for checking leak down though. Most of the dealers on have had service school training on it already.

Oh well... So much for my 5-minute engineering assessment of hydraulic cylinder seal design! Win a few... lose a few!

Dougster

 

[AchingBack]

Just had a talk with my 2615. Seems he is gettin' pretty bored sittin' in the shed. He says to me, " I don't care if it is winter. Fact is, I'd be a heck of a lot warmer if I was out there workin'. For cryin' out loud, boss; give me sumthin' to do."

By this time last winter, my access road had flooded twice, and I spent one full day putting about 200 yards of it, back together. This year, instead of the rain, we are experiencing near record low temperatures.

I think if I were a cold machine, on a day like today; I'd be begging for some action. I guess the least I could do is go out and share a warm beer with the poor guy.

 

[YanmarFever]

Just had a talk with my 2615. Seems he is gettin' pretty bored sittin' in the shed. He says to me, " I don't care if it is winter. Fact is, I'd be a heck of a lot warmer if I was out there workin'. For cryin' out loud, boss; give me sumthin' to do."

By this time last winter, my access road had flooded twice, and I spent one full day putting about 200 yards of it, back together. This year, instead of the rain, we are experiencing near record low temperatures.

I think if I were a cold machine, on a day like today; I'd be begging for some action. I guess the least I could do is go out and share a warm beer with the poor guy.

Dont worry hes not crazy, I talk to my yanmars

 

[02_powerstroke]

120 Hrs and no complaints here with my 2615 HST.

I did have a hydraulic leak that the dealer came to my house and fixed the very next day....free of charge!

In fact we, had a house built this past summer and I did all of the grade work myself with this tractor (moved & graded tons of dirt). I also grade my 500' driveway once every 3 to 4 months, mow around 3 acres a week, grade the snow from our gravel county road (when we get snow...lol) and occasionally drag a tree out of the woods.

Great little tractor for the money or maybe I should say "a lot of tractor for the money".



Matt Sullivan
Scipio, IN.

 

[rback33]

Oh well... So much for my 5-minute engineering assessment of hydraulic cylinder seal design! Win a few... lose a few!

Dougster

Yer right about that. win some lose some. I just realized I left the smilies out, but I think you knew I was just giving you a hard time. Not trying to bust your chops to much over here...

 

[Dougster]

Yer right about that. win some lose some. I just realized I left the smilies out, but I think you knew I was just giving you a hard time. Not trying to bust your chops to much over here...

Never a problem... I've got a very thick skin! Plus it was just a casual theory (no pride of authorship!) formed after I "Googled" hydraulic cylinder seal design. Most of you here have forgotten more than I will ever know about hydraulics... and some, like the MadReferee... should be teaching it at the graduate level!

Me, I'm just scratching the surface...

Dougster

 

[Maka]

Just quickly reading but look at these loader bleedoff specs.

Loader and backhoe boom/bucket lower slowly while parked

Maka

 

[rback33]

Just quickly reading but look at these loader bleedoff specs.

Loader and backhoe boom/bucket lower slowly while parked

Maka

Wow. I wish you would post that in every forum. I don't know what the sizes of cylinder listed there are, but as you can see they can leak down a LOT and everything still be with in spec. And this is from JD to boot...

 

[DigginJB]

Wow, great thread guys! We're going on 250 hours now, have used this honey for so many BIG chores & different odd jobs, the list would take way too long to write... and other than filter/fluid changes, only 1 minor mishap. Got it high-centered on a stump hidden under the brush while logging and bent the TUBULAR steering tie-rod in the process of walking her back off it (by biting & raising with the loader and BH buckets & rotating both - thank goodness for long arms, as in MINE!) Anyway, that finally broke 6 months later. I was surprised because car & truck tie-rods are solid & I thought it could've been heated & straightened, but no. (So watch that ground clearance, fellas!)

And no problem with cold weather starts, either. (We did have several weeks of below 20 degrees F. this winter.) Or sagging hydraulics.

Here's a photo of one of the little stumps we've pulled. Started as a 50' or so Doug fir, bout a 2' dia. trunk & 6' wide root ball. Man have we worked that BH and been VERY impressed with it. The only 'no-sweat, no-thorns' way to clear large brush areas!

 

[Dougster]

Here's a photo of one of the little stumps we've pulled. Started as a 50' or so Doug fir, bout a 2' dia. trunk & 6' wide root ball. Man have we worked that BH and been VERY impressed with it. The only 'no-sweat, no-thorns' way to clear large brush areas!

Good Lord! That photo alone would make a great ad for a 2615 HST!!! Thanks for posting it!

Dougster

 

[rback33]

Good Lord! That photo alone would make a great ad for a 2615 HST!!! Thanks for posting it!

Dougster

The 2615 or the 3710 backhoe? I must say it made my smile.... and cringe at the same time...

 

[Dougster]

The 2615 or the 3710 backhoe?

Well, obviously, BOTH! That's an impressive trophy he's got there!

Dougster

 

[DigginJB]

I must say it made me smile.... and cringe at the same time...

Thanks fellas, glad to brighten a cold day whenever possible.

I have to admit to more than a few "cringes" but that wasn't one of 'em. You can't see into the loader bucket in that photo... actually had no added ballast that time, but there have been lots of instances where the bucket on the 'unloaded' end has had to carry some big chunks of concrete in order to get out of the hole with the prize! Add to that the odd slippery slope, and it does get interesting. There is a trick to finally popping the stump into the BH's grasp in order to pluck & truck, though.

Overall I am amazed at the strength and balance of this rig. Plus getting the BH off to use the 3 point is very quick (especially if a slab is available.) We tried a bigger more expensive orange rig the previous 2 years, this 2615 totally kicks it (not that I wouldn't consider swapping for a 3215 maybe...) I never would've believed how much help the HST is, either - went from the *don't need it* list to "MUST HAVE!"

 

[SPYDERLK]

Sorry to say Doug, but yer out to lunch on the armchair theory. Increased pressure makes them leak faster. There is a proper method for checking leak down though. Most of the dealers on have had service school training on it already.

The 3pt arms on my JD leak down unless there is several hundred pounds on them.
larry