whining hydrostatic
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Don87
Elite Member
Fill to proper level as listed on page 110 of your manual.
http://www.mahindradispro.com/manuelOperateur/Mahindra/2816/2816 HST_OM_en.pdf
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.
Coyote machine
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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?
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
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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 ...
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 ...
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
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.
jenkinsph
Super Star Member
I would expect the pedal to come back up instantly, same as a brake or clutch pedal would.
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
Epic Contributor
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
James K0UA
Don87
Elite Member
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:
sam5570
Veteran Member
djp glade to hear you got your problem solved, almost garden time now
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?
