whining hydrostatic

[Don87]

You will need to shut it off to check the fluid. Are there high and low marks on the stick?

 

[djp1218]

yes and it reads at the very bottom add mark

 

[djp1218]

just made sure the loader was down it still reads low

 

[Don87]

yes and it reads at the very bottom add mark

Fill to proper level as listed on page 110 of your manual.

http://www.mahindradispro.com/manuelOperateur/Mahindra/2816/2816 HST_OM_en.pdf

 

[Don87]

Page 89 shows the grease you need to use for your sticky hydro pedals.

 

[Grandad4]

Yes I have played around with it a little and found that the whine is alot less in low range about 1800 or so rpms. Im kinda nervous about how long i use it due to the fact that I am really not sure if I am low on fluid or not, It seems to be reading at the very lowest mark on the stick with it wamed up and shut off. I am going to call the dealer tomorrow to see if its supposed to be checked running or off.The bucket and hoe seem to be working fine with no whine at all its just the peddle that seems to whine when pressed.Could the fluid being a little low add to the whine even if the other hydraulics are silent?The tractor is a leftover and has set for a long time the place i bought it agreed to put a thumb on it and load the tires maybe they over looked checking the fluids(no excuse but possible)I also need to find out if the peddle returning up is suppose to be kinda slow it takes about 3 secs to come back up another thing i should say is that it hasnt been much warmer than low 30s here all wk

If they added a hydraulic thumb, that's another circuit and cylinder to get filled with hyd. fluid. If they forgot to add more fluid when they did this, it could explain why it's low. The other thing is exactly what kind of fluid is in it? Don't know if Mahindra has a recommended hydraulic fluid, but if it's anything like Kubota, they insist on their own OEM hydraulic fluid, and owners have reported a real mixed bag of results using other products.

 

[djp1218]

the pedal doesnt seem to be sticking it comes back up like a hatch would on a car i just pushed it down all the way and it took 5 secs to come up to normal its spongy like

 

[djp1218]

its a manual thumb the backhoe is on would that not allow the 3pnt from being put down all the way?

 

[Coyote machine]

It's LOW on fluid. Find out what's recommended and fill it gradually until it is between the marks on the stick, AFTER having brought it up to operating temp on the gauge on the dash. Fill it, check it with the tractor turned OFF.
Your pedal may be sticking/spongy/ slow, whatever due to the tractor sitting on the lot for a long time without use. There may be rust between the pedal shaft and sleeve. It may have to be taken apart and cleaned to make it operate properly. Have the selling dealer fix it or do it yourself.
Do you store it inside or out?

 

[the old grind]

It's never a bad thing to read the manual's specific instructions about lubing and fluid checks. Most will advise the proper positions of cylinders/attachments when checking, & checking warm with the engine off seems the common way. (read-up to be sure) Sometimes having things out of position could make up half the difference between 'full' & 'add', but being so near the latter would have me adding a bit of hydro. Backhoes, thumbs, etc may not be mentioned, but bubbles in the fluid says your way low.

My NH 1520 HST never seems to whine. It's high on hours, wear & tear, but the FEL works pretty well at 1500 RPM, tho' 1800 is better for heavy lifting. Any more RPM doesn't seem to add much but engine noise, and with only air in the tires & a box blade for balance getting the rear wheels airborne with the FEL is sooo easy when pulling up saplings with the "Brush-Grubber". btw: nothing I've ever heard whines like a Terramite. My drive/pump nearly drowns out engine noise, but the factory has long advised the racket is no sign of trouble. I'm guessing that age/hours will quiet the OP's Mahindra, but each make is so different ...

 

[djp1218]

it is being stored outside for now bought another house last yr great deal but no garage. part of the reason i bought a new tractor is to finish the spot where im building it did the rough stuff with a fermac 760 i borrowed from a friend for a yr im new to the hydro i have gotten alot of good advise here from alot of people i own a trucking company and know my way around diesels i have had alot of mitsus and thats why i went with the mahindra that and it just seemed to be built tougher that the others in its class 5yr warranty didnt hurt either once some of this snow melts i think i will add some fluid and run it for a couple hrs with any luck things will loosen up it has just over an hr on it at this point but it did sit outside for a cpl yrs from what i can figure

 

[Grandad4]

If it sat outside on a dealers lot for a couple of years, is there any chance moisture got into the hydraulic system? Goes back to my earlier comment about just what is in the hyd. lines, etc. Also, if your dealer has another HST model on his lot - a more recent one - you might ask to test drive it for comparison. If it acts and sounds about like yours, you know it's normal for your machine, but if the other one is much quieter, it would confirm there's a problem with yours.

 

[djp1218]

yes i did go try another one yesterday and it sounded the same the pedal came back up alot quicker though

 

[jenkinsph]

yes i did go try another one yesterday and it sounded the same the pedal came back up alot quicker though

I would expect the pedal to come back up instantly, same as a brake or clutch pedal would.

 

[djp1218]

the others i tried still came up kinda slow still just not as slow as mine ithe others seemed to spap right back for the first inch or so then went slow mine is slow right from the start and creeps for a sec the dealer ordered a new spring as soon as it warms up a little i will try some of the things people on this site have suggested i have gotten a lot of feedback on this and i appreciate all of it.its my first hydro and really didnt know what to expect but have gotten educated for example i didnt know that it is normal for hydros to whine. still wondering if anyone has switched to synthetic oil and noticed a big difference in the whining sound?

 

[k0ua]

Hydro pedals don't center instantly, It takes about a second or so. so count "one-thousand one" maybe just a hair longer. But you said 5 seconds, and that just ain't working right.

James K0UA

 

[Don87]

Hydro pedals don't center instantly, It takes about a second or so. so count "one-thousand one" maybe just a hair longer. But you said 5 seconds, and that just ain't working right.

James K0UA

Mine actually stick. If I'm going forward, I've got to hit the reverse pedal to get it to stop. I've tried 3 different types of grease(can't remember which ones offhand), and nothing helps for more than about an hour os so. I'm going to tear mine apart this summer and fix this problem once and for all:thumbsup:

 

[djp1218]

mine ended up being the dampening cylinder under the floor board

 

[sam5570]

mine ended up being the dampening cylinder under the floor board

djp glade to hear you got your problem solved, almost garden time now

 

[djp1218]

thank you yes cant wait wish it would stop snowing though finally putting a few hrs on my new tractor up to 7hrs i want to switch over to synthetic oil i have been told it makes a night and day difference on the whining i would love to do it as soon as possable but do you think i should wait until 50hrs?