Internatiuonal B414 leaks hydraulic oil

[eXistenZ]

Hello
I needed to move my plough, but my B414 was not up to the task, the hydraulic system couldnt lift with enough force to lift the plough of the ground, oddly since I had myself placed it there ｽ year earlier.
My tractor leaks a relative large amount of hydraulic oil(I assume it is), especially from these 2 locations:

What is the cause for this leak, a broken seal of loose nuts?
Secondly, where do I check hydraulic oil level? ... my manual is temporary gone.
Thirdly, do I refill with "normal" hydraulic oil on my B414? and should I flush the oil compartment in the process, the former owner is very likely to not have spent time servicing my new(old) tractor.

I am not familiar with old tractors, but I'm trying to catch on.

 

[geneP]

That hydraulic system is full of o-rings, and they are getting very old by now. I had a IH 354 with the same system that leaked from about every orifice. It drained down into the brakes and kept them useless. I bought a manual and a rebuild kit and overhauled it myself. It stopped the leaks and leak-down of the lift arms. It's a little effort but had rewarding results.

 

[eXistenZ]

I did find my manual, but I cant find anything on the size of o-rings.
Does anyone know about o-ring "kits" for my B414? I think it would be very wise to change all o-rings.

 

[DLTTrekkers]

Righthand one......Unscrew valve and stip .....replace o-rings ......and reassemble
Left one........clean and remove c-clip.......remove plug ....replace o-ring.......reassemble......make sure c-clip is inplace .

 

[geneP]

I did find my manual, but I cant find anything on the size of o-rings.
Does anyone know about o-ring "kits" for my B414? I think it would be very wise to change all o-rings.

It has been 12-15 years, but I got mine from a Case-IH dealer.