John Deere 2130 Hydraulics

Hi all,
Every time I park up my 2130 with 175 loader it leaves a patch of hydraulic oil on the ground, a good half pint!
I traced the leak to a hanging small bore plastic pipe that seems to run from the top of the hydraulic reservoir above the pump. There are two of these pipes, one runs to the air intake and the other just hangs free. I am pretty sure it should be connected to something as there is a spring wire hose clip on the end. Where should this connect to and any idea why so much oil is coming out of the pipe which I guess is a breather pipe?
The hydraulics are pretty poor on the tractor with a fair bit of shudder but I can live with it for now.

An update, I placed a empty plastic bottle over the end of the pipe and 10 minutes use of the tractor hydraulics results in a small half cup full of oil in the bottle

Cheers in advance.
John

I would assume you are in Canada?
There is supposed to be a drain line that carries seepage from
the front pump main seal/dust seal inner space . Back to the
transmission.
There is supposed to be a line that carries cooled oil back to
the transmission. Once the oil cooler and reservoir are filled.
I"m not certain about what you found with the vent line.
Certainly any chance of hydraulic oil flooding into the engine"s
air intake could cause a run away.
The shuddering loader is likely due to somebody incorrectly
using the SCV to supply the loader"s boom and bucket valves.
The front pump is starving for supply oil.
Numerous posts here on how to properly route supply oil
from a T in the high pressure line after the priority valve.
Most important of all. Return the loader oil into a ported
transmission filter cover. Not back in through the SCV. And not
direct into the transmission case either.
Has anybody cleaned the oil inlet screen and changed the
filter ?
If somebody went and lost the operators manual. The nice
folks at 1-800-522-7448 have new ones on CD or on hard
copy .
If you are in there . This is the time to install a $15 front pump
manual destroker. When caught with a low battery or not
enough warmup time with the block heater on a cold day.
Taking the pump out of stroke beats whirling the steering
wheel diddly fiddly trying to reduce pump drag.

I think the small plastic tube is one of the lines(parts key 8,15 or 21) in this parts photo.

I am in the UK.
The loader was a dealer install so it has the correct pipe work installation and the ported cover.
It is the plastic pipes shown in the diagram but annoyingly they don't show where they are terminated.
It does look like there is a pressure relief valve in the top of the reservoir where the pipes connect but it looks to only open when there is negative pressure in the reservoir or pressure in the plastic pipes.
I do need to change the filter and check the screen as I haven't done this since purchasing the tractor (5 months ago).

The hose end close to hose clamp 16 ends up at trans shift cover,the other end goes to frt hyd pump.

Your tractor and my 2550 are very similar and have the same engine. I had the same problem. I found a short 6 in piece of plastic hose coming from the reservoir in front. If you follow along the engine you will likely find additional parts of that hose as it snakes its way back along the top of the engine to the trans sump. I bought about 3-4 feet of rubber hose with the same inner diameter to use as a replacement and ran it from front to back to solve the leak. I took some pics to show you.

Here is the new tube snaking behind the manifold and down to the back of the engine. I did not take a pic of the front connection because I removed the hood to install the pipe and do not want to remove it to take a pic.



Here is that tube slid over a metal tube going into the sump. You will likely find more of those plastic tubes in these locations, falling apart.



Also, I had to replace both the inner and outer air filters. The fluid got pulled into the filters and started causing air restrictions and loss of power. You may also want to degrease the radiator. With all that fluid being sprayed about, it makes the radiator a magnet for dirt and clogs it up quickly causing overheating.

Don't know why deere uses a plastic hose for this application... It disintegrates over time.

John