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Hydraulic Line Blow Out

M

michaelkurth

New User
I have a Ford model C40230 with an engine stamp of D4NN6015F. Hydraulic pump code is 5019B. The high pressure line blew out from the pump and I am not sure if parts are missing now, post blowout... I pushed the line back in the pump but it still leaks. The line has slight grooves close to the end going into the pump. I searched for info on line connectors, but have not found anything. Hoping someone can shed some light.
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Model number C40230 is most likely actually C4023C. The last character should be a letter designating what transmission it has, and the letter "O" was not a valid transmission option at that time, so the only letter that looks close to a zero or the letrer "O" is a C. That would make it a 3400 (Utility chassis model within the 3000 series) with a gasoline engine, live PTO and an 8 speed transmission.
 
This is a common problem on those later tractors.
The new compression nut is not cheap - $40? And if the tube is scratched up or eaten away at a new nut will not hold.
If you want to fix it so it lasts another 40 years go to your New Holland dealer and order a new tube and two new nuts - one for each end - and install them. Will cost around $80 for the tube plus the new nuts. Also, there are two clamps that hold the tubes to the right side of the chassis of the tractor. Make sure those are there and clamping properly to keep the tubes from vibrating.
Those are very good, very reliable tractors.
 
It now looks like the old compression nut is still there. The line has several slight grooves going around the tube, possibly where the nut was making contact with the tube? Still likely a good idea to replace all the parts?
 
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