Grinding noise when coming to stop

[gcmedica21]

Hi Everyone,
Yesterday while mowing i was going forward up a hill (small incline) and missed a patch of grass. I rolled backwards, to go over patch with tractor and as i was coming to a stop i heard what sounded like gears grinding. Clutch was in and PTO was engaged. It sounded "larger" then transmission gears, hard to explain that sound.....
After i finished cutting the grass i was able to reproduce the noise every time now. Roll backwards and press break down to stop and noise happens. It happens when i press the brake and not while rolling only when coming to a stop.

2005 foton 404
hours 180

Any help is much appreciated

James

 

[Affordable]

Sounds like brake problems, we keep Foton parts if you need any, you will have to get into it to see whats going on

Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[greg_g]

Roll backwards and press break down to stop and noise happens. It happens when i press the brake and not while rolling only when coming to a stop.

Well, the Fotons have wet brakes. That means they're inside the differential housing. The only thing exposed are the external linkages to the brake pedals. Wet brakes are not subject to dirt and rust problems as are dry brakes, hence there are very seldom any wet brake problems reported

I suggest that you start by trying one brake at a time. Release the locking mechanism that binds the two brake pedals together. See if it's only one side making the noise - or both.

//greg//

 

[Affordable]

//Greg//, the Foton FT404 do not have wet brakes that I have seen,they are similier to the Jinmas disc dry brakes ??? Not sure where you seen wet brakes at? Was it on a FT404 ?


Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[greg_g]

Not sure where you seen wet brakes at? Was it on a FT404 ?

Yes, although I can't say whether any of them were 2005 models

//greg//

 

[gcmedica21]

Hi Guys,

Thanks for replies.
Greg i did as you asked and it is only on drivers side, if there is such a thing on a tractor, LOL.

I also notice now that it "sticks" when i try to drive forwward. It "pops" or "clunks" and then it drives fine. It feels like the brakes are getting stuck. Anymore thoughts?

Brakes are inside housing so i will have to have it taken somewhere to fix them......

 

[greg_g]

Brakes are inside housing so i will have to have it taken somewhere to fix them......

Yeah, if they were dry brakes you'd be able to access them externally. Wet brakes are pretty simple, just basic metal on metal disc brakes essentially submerged in gear oil. Parts should be pretty cheap, but labor will really suck

//greg//

 

[gcmedica21]

I am going to load the tractor up on sunday and take it to mechanic and see what he can do for me. I will let you guys know what he comes up with. Thanks for all your help

James

 

[Sweden-Art]

I am going to load the tractor up on sunday and take it to mechanic and see what he can do for me. I will let you guys know what he comes up with. Thanks for all your help

James

Before you do that. Have you tried to adjust the breaks? Should be two threaded linkages from the break pedal?

I have had they same sounds when new. I just adjusted it to get the correct free travel and now it has been fine for 150 hours.

I have a Mahindra 2525 with wet disc breaks.

 

[gcmedica21]

Hello everyone,

Ok went by the mechanics place last night on way home. couple things:

first the rear end oil was dark blood red, had a weird smell to it. Kind of sweat and sour at same time....

found some metal on magnetized oil plug...bunch of shavings

also found a round piece of metal on magnet, (best description is a paper clip bent into a circle, not that big as a paper clip but it gives the idea)


not looking good for home team, just wanted to give update.
(brakes were already adjusted almost all the way for last post comment, thx for idea though)

James

 

[greg_g]

Any chance someone unknowingly or unwittingly added ATF instead of the prescribed 80W90 gear oil?

And given your statement that "brakes were already adjusted almost all the way", you may have inadvertently over-tightened those linkages. When that happens, you're actually driving/working with the brakes on. It's like riding the brakes, even though your foot's nowhere near the pedal. That can cause premature wear and/or damage even to wet brakes. Hot brakes submerged in gear oil could do funny things, such as discoloration and smell. The parts found suggest a retaining clip/snap ring let go somewhere, but there are literally dozens of them in there.

//greg//

 

[gcmedica21]

Hi Greg,

I bought the tractor used, so honestly i have no idea about someone putting wrong oil in there. I would check levels before use and have not had to add any, no telling before i had it. when i would check levels it never looked like that on dip stick.

The "riding the brakes" idea may explain why it feels sluggish since the adjustment of them(thinking back on it).......i am a idiot!!!!

He is going to be taking the rear end apart today so we shall see. I am betting brakes are shot!!

 

[gcmedica21]

Stopped by to check on progress........WOW does it look different completely apart like that, poor tractor!!!

Ok, so pads are in excellent shape, shocked but very happy!!

Sounds and looks like since different rear end oil(and not correct oil) was in there and with that, causing no lubrication is probably all the "noise" and sticking of brakes. Lots of metal shavings and RUST was found also.

They are going to be putting it all back together fill it, run it and drain it and fill it again. does that Sound good???? I mean there is no filter other than that magnet so i cant think of any other way to "flush it"

Also i did not know that the hydraulics and rear end were on separate lubricants. What i gather is my hydraulics are on top of rear end and separated completely. So what i thought i have been checking my levels on rear end was just my hydraulics and not rear end at all .......

 

[Rich Waugh]

You really need to get the manuals for that tractor! They would have told you how much and what type of fluid goes where, among a jillion other things you need to know to be a successful tractor owner.

 

[gcmedica21]

Hi Rich,
I just got my hands on them the other day, i did some calling around and found a place that would just give them to me. I turned them over to my mechanic so he can try and make heads or tails out of it. Making progress

I thought i was doing the right thing but some reading material would have been nice from the word go.....i know its my fault stop yelling at me, LOL!!! (j/k, i know what you mean)