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When it was on the jack stands I would engage the hydraulic valve control for either wheel about 1/8 or less of the total lever/throw distance and the wheel would start spinning. It may have been spinning about full speed by then, but it was hard to tell. Then as I moved the valve lever...

Open windows, fans, solvents and a fair volume of rags. A quart or so of acetone should do it or Naphtha if you want something less volatile.

They were not, but believe me, I have done dumber things than that :)

Solved. Langanobob nailed it. I took the mower off of jack stands and ran it on the ground. The hydraulic pump(s) made ugly noise for about 5 seconds, but then everything is started working normally. Apparently hydraulic motors (or at least my set up) can't be "free wheeling" otherwise...

That occurred to me, that perhaps the problem is not enough resistance against oil flow. But I have not tried it yet.

The hydraulics were fine before I changed the oil and filter. The new filter is OEM from a Gravely dealer (thought I will triple check the part no. today). After refilling the system, - the engine runs fine, - when I engage either or both wheel hydraulic motors the engine starts to start to...

Thanks rScotty you are correct. I drained the SuperTech and replaced with 20W-50 and, if anything, the problem is worse now.

I have a 30 year old Gravely zero turn mower with very little time on it (about 350 hours). I finally decided to change out the hydraulic oil and filter. I used what I had on hand for oil - Walmart SuperTech tractor transmission and hydraulic oil. It took a while for the system to fill up...

I have. I found metric equivalents for two applications: holding the spring assembly to the frame and the axle to the springs. But I am not sure I am going to use them for those applications. M8 is very noticably thinner than 5/16, ditto m10 for 3/8. Then if I go up one bolt size, can't find...

Have not bent any stainless yet. I bought Chinese 304 8m ubolts that i need to have threads extended 3/4" closer to the bends. I did about a half inch last night just to try it because I was concerned it might be a problem. Threading the 304 was actually quite easy, and I have not added...

By "All-tread" you mean threaded rod? I had planned on using stainless stock and tapping the threads needed.

I plan to use stainless. I have been on McMaster - all the widths are in whole inches, my bolts are not. The Nutty co. been there. I forget if they are one of the folks that make custom sizes? I have been to a dozen websites. In any case, the custom places are just doing carbon steel, and...

I am refurbishing an old Cox boat trailer and have been searching and searching for the correct size square u-bolts to fit various applications. I have decided it's impossible to find something you can live with, never mind finding a size you want. Has anyone fabricated a "die" set up for...

From you description of what happened, I agree with John_Mc. The ram must have been moving fast and quickly loaded preassure on the log that was "set" so going to slip of the ram anyhow, just not that fast and that far unless the ram was moving likewise.

I am refurbishing my 2000 L4310 and am planning to use Chevy engine orange. My machine has a Curtis cab, FEL and backhoe. More painting than practical for using rattle cans. I have not been able to find this paint in gallons. Does anyone know of a source? Are there other orange paints...

I see a neat looking little tractor for sale on the internet. Ad describes it as a 1970 Ford Model S470 3 cy. diesel. The tin work makes it look like a little 1960s vintage Industrial Ford tractor. I can't find any info googling the internet. I am guessing it is a Ford branded tractor of...

I modified an early 1970s Fisher plow to mount on my FEL. This was my Dad's, the trip springs are original and I am looking to replace them. The springs are 3 inches OD, compressed length is 14 inches, and non-compressed length is 15 inches. I also want to replace the spring bars. Shopping...

2000 L4310 HST I took the cover off of the port that the speed range shifter comes up through. The gear was in low, and I tried shifting to medium but, apparently, not close enough to the correct patterns. Now the speed gear is in low - the shift lever moves but does not change the gear...

I am dreaming of the plasma cutter I see in my relatively near future. I am going to go new because ..... all my other stuff has been bought used, and I commonly see advice on this bulletin board and others that a plasma cutter is a good tool to buy new. My question: Does the ease and...

I have had this tractor for two years. Shifting between the gear ranges is very difficult to near impossible (I muscled it into high range just once, and though it was stuck there forever). I am looking for advice as to how to go about figuring out if this is due to a mechanical problem or...

I am replacing the hoses to the boom, dipper and bucket pistons on my BH9000 and am not sure about the fitting size. These are Woods part numbers 37957, 37956 and 37955 described as 3/8" ID hose with 9/16 JICF (i.e., female) fittings. They are straight, swivel female JIC fittings. When...

I need a couple new hoses for my Woods backhoe. Woods part number 37961 which is a 1/4" hose with JIC6F fittings on either end. Can someone tell me which size fitting thread this is ... based on the charts I have looked at ....., Does the 6 mean a 3/8" thread? Thanks, Tim

I put a ding in the cylinder rod of my backhoe stabilizer leg. I filed the edges smooth and want to fill it and smooth it to keep it from ruining the seal. I plan to fill it with Safety Silv 45 flux coated - this is what was commonly referred to as silver solder or silver braze. I do a fair...

I let a rock roll down the pile and hit the stabilzer cylinder rod on my backhoe. Something I tell my son not to do a dozen times everytime he gets on the machine. What is the best way to deal with the ding so it doesn't ruin the seal? I smoothed the rough edge with a file and was thinking of...

I have a lead on an air compressor designed for a large building climate control system (my understanding is it provides pneumatic pressure to operate dampers and such) for a low cost. These are designed to work with lower RPM (longer life ?) and to let minimal oil to tank. This particular...

J_J, here is how my FEL is plumbed. Using existing fittings on the boom, I cold only tap into half of the curl circuit with a diverter valve (right or left) leaving the other half as part of the second function circuit. The only place to do it would be up near the cab.

I have read that when welding on modern vehicles it is advisable to disconnect certain computerize parts. I have a 2000 Kubota L4310, and I imagine there is a computer or two in there somewhere. Does anyone have experience with welding on modern tractors and needing to be concerned about...

I have a Kubota L4310 with a 7.8 GPM hydraulic system. I am considering replacing my 2 spool FEL valve with a 3 spool valve as I want to add a separate set of hydraulic lines for remote hydraulics on the FEL. The selection of 3 spool valves in the 8 GPM range seems to be a limited. There are...

I have a Kubota L4310 HST with a FEL. When I plowed this past Sunday I had a problem with the loader valve. The boom won't raise when the lever is pulled all the way back; if I pull the lever past about 3/4 of its throw the boom stops at what ever height it is at. I can raise the boom...

I have a FEL mounted, straight blade snow plow. I am planning my hydraulic set up to supply power to two single action cylinders to angle the plow. I recall reading a post about a relief valve that can be added to system too allow the angle to move if you hit something hard wiith one side of...

I want to add two sets of hydraulics to my front loader. My immediate need is to angle the snow plow I made up for it, but plan to add a log grapple using a hydraulic motor for rotation so I am looking to add two sets. This is a Kubota L4310 with a Kubota LA681 loader with a "standard" L2085...

I am rewiring a 10K trailer, with electric brakes at all four wheels. The break-away switch was wired though typical small "Universal" battery that is dead, and the box it was in is caput. The previous owner added a winch, for which the trailer carries a deep cycle battery. I would rather...

I bought a 2000 Kubota 4310 with a 9 foot woods backhoe in January of this year. This backhoe has it's own pump and hydraulic reservoir driven off the PTO. My first opportunity to play with the backhoe was this weekend. When I go to extend the boom, it hesitates and drops down a bit before...

I just bought this machine, and have only operated it for an hour or so in cold weather. The hydrostatic transmission gets stuck in forward so that it creeps when you take your foot of the pedal, is stops if you tap the reverse pedal. I have not had a chance to look into myself, but I...