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Based on the description the hose is 1/2" male NPT and the 90 and 45 degree fittings are male NPT on one end and female NPT swivels on the other. Dan

I beg to differ. UTTO is used world wide in the differrentials of hundreds of thousands of common sump tractors made by dozens of OEMs including Kubota, JD, Case, CNH, AGCO, Mahindra, etc. It is a grade 80 GL4 gear oil specifically formulated and tested for use in front and rear final drives of...

A lot longer than 10 feet. FWIW Kubota STRONGLY recommends an 8 centistoke fluid in the rear differentials of all their tractors up through 100+ HP M series machines. I dont think the front differential is any more demanding. Dan

Where in MD and a picture or two please. Dan

7/16 UNF (=4) is used on 1/4 JIC and SAE hose and tube fittings but 9/16 UNF (-6) is more commonly used. Dan

Common agricultural hydraulic hose sizes are is 1/4", 3/8". 1/2", 5/8", 3/4", and 1'. That is the ID of the hose. For any given size hose the OD of the hose can vary based on construction. For example the OD of 1/2" R2 hose is larger diameter than 1/2" R16 hose. The end fittings do not have...

Started the two year old tractor today for the first time in several weeks. It was low on fuel (1/4 tank) so I started to refuel using the transfer pump and tank on my truck. Fuel gauge wasn't moving and I thought maybe the transfer tank was empty. Nope - plenty of fuel in it. Pumped a bit more...

I can only speculate. Conventional 80W90 gear lube has a KV100 around 14 cSt, a viscosity index around 95 and a typical channel point <-30C Synthetic 75W90 gear lube has a KV100 around 14 cSt, a viscosity index around 190 and a typical channel point <-50C SUDT2 has a KV100 around 8 cSt and...

It wouldnt. My mind reading is rusty - he never used the words "on its own" and silly me assumed he meant when he operated the levers. Dan

Most likely one or more of the hoses is not connected correctly. Dan

Sure as long as you dont give a crap about the absence of EP additives. Dan

I dont have an actual measured channel point temperature for SUDT2. Do you? Dan

I dont know the specifics of your tractor but generally 3pt lift arms have a relief valve in the lift circuit that protects against thst sort of overload. When you hit a bump that causes a shock load (pressure spike) in the lift circuit the relief opens and the lift will drop enough to absorb...

Thats the basic idea. The LRI channel point test (FTM-3456) s the actual test procedure used to quantify this performance. It determines the temperature at which the rotating gear teeth cause the oil to form a channel that does not close up behind them to recoat the trailing teeth. That results...

They do but only one set. Dan

Brand has nothing to do with it. You need to know the size AND the series of the coupler. Dan

The PDF manual has an index/TOC hierarchically organized by component/theory of operation (mechanism)/ service procedures in the left pane of the reader. It will get you close. As far as I can tell there is nothing specific in the L3901 manual on how to replace the oil cooler hoses. It simply...

WSM organization is a bit strange. You will probably find the oil cooler and lines in the hydraulics section. I also suspect you wont find step by step instructions on replacing any hoses or pipes. Left as an exercise for the reader. Dan

Mine were leaking at the oil cooler when I first got the tractor (new). Fifteen minutes with a screwdriver stopped the leak. The cooler end is easy to access with the battety out - not sure about the other ends but I dont think replacing them is going to be a difficult task. I would certainly...

Even easier if they are the two way sleeve style and properly panel mounted. Just push in to connect and pull to disconnect. Dan