Thanks for the good safety information, good to know another way this thing could kill me, I am going to take a closer look at the valve, and hopefully find it in the service manual, I have to give you guys credit to be wrenching on these beasts everyday that's for sure. Thanks Mini
I actually repaired one of these valves a few months ago. They are pretty simple. If they are expensive, you may be able to repair it.
is it actually leaking out around the stem where the n knob is or the valve body underneath.
I looked in the repair manual, and there does seem to be a seal kit for it, but This one looks to be in really rough shape, the pin is really bent over, and It might be seized, as I have never been able to move it, for fear it would just break off, The leak appears to be on the underside somewhere, I am fairly certain, I placed some paper towel under it, closed the cab and let it run for a few minutes, the paper towel had about a 3" diameter wet spot of clean hydraulic oil on it, and everything underneath it is soaked with oil, so I believe it has to be that valve or a line, going into it, ?
There is a seal holding the oil back from that shaft. You may be able to straighten the shaft to get it to work if you are so motivated.
Well I finally got around to for sure determining the leak is coming from the valve, and it sure is, leaking out, a lot, I ordered the new valve, instead of just a seal kit, this thing is really rusty, and it should be here in a few days, I was wondering when I remove the two hydraulic lines, from the old valve, will oil continue to leak out? should I a plug them, while I am preparing the new valve with the old fittings? maybe have some corks or something ready,? this thing has already made an environmental leaking mess on my property, as it is, I don't need anymore spilled oil !!
You will get some oil coming oit, but it won't be really fast i don't believe.
about 75 bucks. yea you need it
Thanks Tazza your advise is greatly appreciated thanks again mini
the bobcat dealers up here in Canada make a little mo money about $140 up here
Thanks for all the help, I was able to replace the arm release valve and it appears ok, my only issue is there is still some oil leaking out from under the bobcat, a week later, I added about 4 quarts of hyd. oil, and it's still low, so the old valve did leak a ton lot of oil into the belly of the machine, Is it possible that it could be holding oil in the belly , and will take time to fully drain, or do you think I still have another leak somewhere?
Did you clean out the hull when you had the cab up? There should be two drain holes. They are next to the chain case in the rear corner. Every time you get the belly on the ground you will push dirt/mud up into the hull. The last time I cleaned mine out, I had hardened clay 'snakes' piled up in the hull. If the drain holes are plugged, you could have gallons of oil soaked debris in the hull. When I bought my loader, I was surprised how much dirt was in the bottom of the hull. This was after the dealer steam cleaned it. I used a long prybar to break it into chunks. Pulled out the chunks by hand and then used a shop vac to get most of the rest of it. Once I found the drain holes, I blocked up the front of the loader and washed out the hull with degreaser and a pressure washer. The hardest area to clean was the area in the hull under the pedals area. I spent hours cleaning out my hull and the area under the motor. If you don't keep the area under the motor clean, you can wear holes in the oil pan or fuel tank. It can be hard to find oil leaks when everything is covered in oil. For me, the older the equipment, the cleaner it needs to be to monitor the little leaks that eventually show up. I helped with a repair on a 753 that was owned by a concrete company. The machine was only a few years old. Not only was the hull loaded with dried mud, you could hardly move the pedals. The pedal wells were full of dirt and concrete pellets up to the bottom of the pedals. The machine was seriously neglected. They told us to leave it since they didn't want to pay us to clean it out.
No I did not clean the hull, after I replaced the valve, but it was very wet with oil when I looked down there, I assumed it would just drain out on it own, OK Drain plugs, in the hull, that makes sense, I will try to find drain plugs and clean it out, for sure
On my 763, under the machine between the chain case and fuel tank there is a small metal plate cover with 3 bolts holding it in place. Take that plate off and it should drain well from there.
Sorry if this is a duplicate but it didn't look like my reply posted. There are two drain holes ahead of the plate with 3 screws in it. The holes are sort of triangular and are just behind the rear axle housings at the bottom of the belly pan. Get them cleaned out then wash out the pan. The holes are just beside the chain case that runs through the center of the machine.
Mini, there are those two drain holes mentioned in this thread. They're at the back of the large voids on either side of the chain case. Those should be open all the time for drainage. That area accumulated dirt and stick, so the holes are probably just clogged. Poke around on the "floor" of the belly from the top with a piece of rebar. You wanna be clear against the "back wall", right on the "floor" and up against the outside "wall", on each side. The plate underneath held with three bolts is an access port for the chain case and fuel tank drains. That area usually just accumulates some dirt. Careful if you remove it and poke around in there, as you could disturb the drain plugs (just a steel plug in a rubber grommet). Once you get the two drain holes opened up, you can easily hose out the entire area under the cab.
---Bobbie G
