Texasmark1
Well-known Member
Recently purchased 1988 3910 and seems to have the same braking system as most Fords of the size/era. Discs are C5NN2A097B.
Tractor only has 900 hrs for being 30 years old. Very little, light weight usage as were the actual hours posted, verified by me several ways.
Assuming the wet brakes were sitting half in and half out of oil, even though the tranny shows the very slightest bit of rust in a non contact area, in an area on a shaft above the oil.....(separate sump but metal exposed to the atmosphere somewhat to the same degree) I have a low pitched grinding noise when applying the brakes, with any degree of pressure, both sides, at any speed..
The braking performance is excellent and it's grinding (not chatter). The adjustments are about midway and even. No sign in the adjustment nor the pedal height when applied, that anything is worn down, aka worn out. The noise was present when I bought it and after I changed fluid and hyd spin on filter. Oil was dirty like was in the tranny but no signs of moisture in either.
I don't know how the thick the friction material is on the brake disc and just what it's made of......would really like the answer to that question without having to buy a disc just to see. I'd assume It would be like a clutch disc lining, very hardy and resistant to usage......seems to me it has to be that way when you consider what it takes to get the axles off to get at the brake assemblies and all.
I have put about 20 hrs on the tractor since purchasing and they were medium duty requirements, 6' drum mower and 7' tandem disc harrow. Noise hasn't changed. I was hoping I had rust on the steel plates that rub against the discs when stopping and that I could gently rub it off with some usage. Apparently not.
I tried to answer all your questions prior to your asking. Assistance would be appreciated.
Thanks,
Mark
Tractor only has 900 hrs for being 30 years old. Very little, light weight usage as were the actual hours posted, verified by me several ways.
Assuming the wet brakes were sitting half in and half out of oil, even though the tranny shows the very slightest bit of rust in a non contact area, in an area on a shaft above the oil.....(separate sump but metal exposed to the atmosphere somewhat to the same degree) I have a low pitched grinding noise when applying the brakes, with any degree of pressure, both sides, at any speed..
The braking performance is excellent and it's grinding (not chatter). The adjustments are about midway and even. No sign in the adjustment nor the pedal height when applied, that anything is worn down, aka worn out. The noise was present when I bought it and after I changed fluid and hyd spin on filter. Oil was dirty like was in the tranny but no signs of moisture in either.
I don't know how the thick the friction material is on the brake disc and just what it's made of......would really like the answer to that question without having to buy a disc just to see. I'd assume It would be like a clutch disc lining, very hardy and resistant to usage......seems to me it has to be that way when you consider what it takes to get the axles off to get at the brake assemblies and all.
I have put about 20 hrs on the tractor since purchasing and they were medium duty requirements, 6' drum mower and 7' tandem disc harrow. Noise hasn't changed. I was hoping I had rust on the steel plates that rub against the discs when stopping and that I could gently rub it off with some usage. Apparently not.
I tried to answer all your questions prior to your asking. Assistance would be appreciated.
Thanks,
Mark