No hydraulic power in my 2007 M-F GC2310TLB when temp is below 35 deg F. What's up?

[solomon]

I have a 2007 M-F GC2310TLB I bought new from a M-F dealer in the Concord area here in N.H. in May '07. I now have 100 hours on the clock. It was serviced per the manual. This winter whenever the temperature gets below 40 deg F the tractor doesn't have any hydraulic power though it can move forward and back but no steering power nor loader lifting power. The sight glass shows the hydraulic fluid is at the correct level. Operated fine last winter no matter what temperature, only difference is I kept the backhoe on last winter, disconnected it for this winter.

What's up?

 

[Hooked_on_HP]

I would be calling the dealer. Is the warranty still in effect. My guess would be a pluged hyd. filter. When it is warm the oil is thin and will pass through the filter. when the oil is cold it is thicker and wont pass through the filter.
Bill

 

[irwin]

Operated fine last winter no matter what temperature, only difference is I kept the backhoe on last winter, disconnected it for this winter.
What's up?

Aside from the obvious (filter is plugged-fluid too thick..doubt that's it though)

....are the hydraulic lines that ran your backhoe hooked up right ..ie: are they suppose to be in a loop? if yes..are they? If everything is in it's proper place, I agree with Bill, call the dealership service department..that ain't right.


BTW welcome to TBN

 

[john_bud]

My guess would be that you have water in the system and it is icing the hydraulic return. The pump is then running dry and will fail MUCH sooner than you want.

The HST and the PS/hydraulics have different pickup locations and filters.

jb

 

[solomon]

Thanks for the reply. Before I brought the dealer into it (pickup/delivery, etc.) I was hoping to find an easy cure.

Thanks again.

 

[solomon]

Checked that first thing, everything is hooked fine. Doesn't seem to be as simple as I hoped so you guys are right - dealer is next.

Thanks again.

 

[Ductape]

Do you have a service manual? If the hydraulic filter has been changed recently, I'd be looking for a pickup screen (non change-able filter) in the system. I had the same problem with a tractor I used to have. If you have a screen, remove it and clean it good. I believe kerosene can be used to clean it. They get gummed up and will not allow the hydraulic oil to flow at the lower temps when it gets thick.

 

[Bird]

How long do you let it warm up? A few years ago, a neighbor bought an old Oliver 85 hp tractor and the first cold morning, he went out and started it, let it idle a couple of minutes, then found the same problem you have; no power steering or 3-point lift (he didn't have a front end loader). He left it running, while he went back in the house to call the dealer from whom he had bought it. The first thing the dealer asked, was how long it warmed up. By that time, the tractor had been running about 10 minutes, and when he went back out, everything worked fine. Now of course this was a tractor that was about 25 years old, so maybe not similar to yours.

 

[DANOCHEESE]

Sounds like you need to wrm it up. I have a dx35 HST at -20 it takes about twenty minutes for the laoder to lift. A trick to use If a HST is to leave it in neutral and hold the fwd pedela down thne the reverse. Give it ten minutes or so to warm up first then do this.. It circulates the fluid. I jsut throw the nipco on it for twenty minutes while it is warming up. then take it slow until it warms all that hydo fluid up.

 

[solomon]

Thanks to everyone - appreciated the helpful hints. Turns out it was water in the hydraulic fluid. Once the water freezes - no matter how long I let the tractor warm up, and I let it warm for an hour once - no go. Stopped by the dealer last week where I learned the 2007 GC2310TLB has a hydraulic pump vent tube just aft of the seat that is exactly where water collects and gets drawn right into the system...you woukd think the M-F engineers in Des Moines would know about ice.

Today was the first day above freezing we have had in weeks and everything worked as it should. But just to get ahead of the situation, I drained the fluid, changed the filter, and moved the vent tube.

Chasing another below freezing problem though: below 32degF I have to run the charge to the glow plug for 3 to 4 minutes to get the engine to start (battery came with the tractor, has a 100 hours on it, and holds the proper charge), the dealer said it should only be 20 to 30 secs. They didn't offer to deal with it even though it is under warranty (I will eventually force the issue) - anyone have any ideas?

Thanks in advance