M59 Discussion Thread

[Stonehaller]

I may have been miss informed but I remember asking the dealer what the swing port put out and the main port put out and was told the same gpm number for both.

The L45 is rated, 11.8GPM main pump and 6.6 GPM on the swing pump, M59 I believe is 16.1 and 9.5 GPM. The ball valve is a good idea, but you only need the valve on the supply port for the lift to be able to operate. Something else to keep in mind is that you could combine the main and swing pump outputs if you ever needed it for a high flow attachment. One caution is that the relief pressure for the swing pump is lower than the main so you should add a check valve in the swing line to block higher pressure back to the swing pump.

 

[BandDcabinet]

View attachment 405124
Sorry it's sideways.

Any idea what the max design working pressure the ball valves can sustain?

 

[ultrarunner]

Any idea what the max design working pressure the ball valves can sustain?

The ones I buy are only rated for 600 lbs except for a few expensive ones that I have to order that are rated for 3000 lbs... also they are stainless and labeled for water/oil/gas... about $200 list for the 3/4 size.

SHARPE VALVES SS Ball Valve,FNPT,3'/'4 In - Ball Valves - 3MRD9'|'"SV50C76006" - Grainger Industrial Supply

 

[Stonehaller]

Any idea what the max design working pressure the ball valves can sustain?

Very good point. I missed that. Those valves look like low pressure valves for water service and if so natem should replace or remove them immediately. You could get away with it on the return side if you always remember to shut off the supply side first. You need a valve on the supply side rated for 3000 psi or more working pressure. Like Ultrarunner posted or this lower cost one here:

3/4" NPT CARBON STEEL 5800 PSI BALL VALVE

 

[natem]

Very good point. I missed that. Those valves look like low pressure valves for water service and if so natem should replace or remove them immediately. You could get away with it on the return side if you always remember to shut off the supply side first. You need a valve on the supply side rated for 3000 psi or more working pressure. Like Ultrarunner posted or this lower cost one here:

3/4" NPT CARBON STEEL 5800 PSI BALL VALVE

I'll have to get one of them, I have not had any problems with it yet. But I don't think I'll push it.

 

[rScotty]

Might as well keep this thread up to date. It contains a ton of useful info.

So here's notice and a link to a thread reporting on Kubota's weldable hanging brackets for anyone wanting to make accessories to fit their M59's backhoe bucket quick attach pins.

Take a look at the thread:
"M59 QA Backhoe Bucket and Weldable Ears"

http://www.tractorbynet.com/forums/...ng/335631-m59-qa-backhoe-bucket-weldable.html
rScotty

 

[bdog]

Does anyone have their rear tires loaded? The manual says it may be necessary to load them for stability when the backhoe is not attached but that they should not be loaded when using the backhoe. I never plan on removing the hoe in fact I don't even have the 3point arms. The machine seems light and easy to push around when digging. Seems that filling up the rears would help a lot. I can't figure out why the manual says not to fill the rears when using the hoe. I figure the tires will hold about 500lb each. Surely the outriggers can lift up an extra 1000lb?

I am a big fan of weight on tractors. Everything I have owned prior to this has had loaded tires and add on cast weights.

 

[sandyc]

I was told that the reason the manuals for tractors with backhoes mention not using loaded tires is that when the loaded tires are up in the air on the stabs they might loosen. Never happened to me but I check my torque every once in a while. Maybe it's an urban myth.

Sent from my iPhone using TractorByNet

 

[mike69440]

I was told that the reason the manuals for tractors with backhoes mention not using loaded tires is that when the loaded tires are up in the air on the stabs they might loosen. Never happened to me but I check my torque every once in a while. Maybe it's an urban myth.

Sent from my iPhone using TractorByNet

Simply adding weight is good! M59 Needs at least another 1000Lbs.

 

[rScotty]

Does anyone have their rear tires loaded? The manual says it may be necessary to load them for stability when the backhoe is not attached but that they should not be loaded when using the backhoe. I never plan on removing the hoe in fact I don't even have the 3point arms. The machine seems light and easy to push around when digging. Seems that filling up the rears would help a lot. I can't figure out why the manual says not to fill the rears when using the hoe. I figure the tires will hold about 500lb each. Surely the outriggers can lift up an extra 1000lb?

I am a big fan of weight on tractors. Everything I have owned prior to this has had loaded tires and add on cast weights.

" I can't figure out why the manual says not to fill the rears when using the hoe."

Well, my guess is that nailing down the tractor with that much weight would cause too much stress on the hoe itself. As it is, Kubota has already given us more backhoe than the tractor's normal weight can hold steady, and I'm figuring that letting the hoe move the tractor around is a "safety valve" for stress on the BH and frame components. If you've ever looked at that main swing pivot platform on the M59 BH and then taken a gander at the same part on a full size TLB....well, that darn plate on the M59 sure isn't all that beefy. Of course it does work OK....and I've never heard of one breaking or bending....but there has to be a limit somewhere and tractor weight just might be where the limit lives.

But maybe there's still room for you to add some weight....because it just might be that when the Kubota engineer wrote that part of the ops manual he was assuming that the owner already had the full allowable complement of three factory wheel weights per side and are meaning to say not to add loaded tires to the wheel weights that are already there. Could be.... after all, wheel weights really are a better solution even if more expensive, and the guy is probably some sort of engineer so he's got little concept of money or the real world outside anyway.... ....so maybe he just figured anyone with an M59 would go with wheel weights first.

Can't help much more than that. Weight isn't a problem where we are here in Colorado. Just as it comes stock is good for us here in the Rocky Mountains where what we want is light weight coupled to high muscle. The M59 sure has both those things... just as long as we can agree that weighing something over 4 tons is to be considered "light".

Whatever you try, good luck and let us know.
luck,
rScotty

 

[mike69440]

" I can't figure out why the manual says not to fill the rears when using the hoe."

Well, my guess is that nailing down the tractor with that much weight would cause too much stress on the hoe itself. As it is, Kubota has already given us more backhoe than the tractor's normal weight can hold steady, and I'm figuring that letting the hoe move the tractor around is a "safety valve" for stress on the BH and frame components. If you've ever looked at that main swing pivot platform on the M59 BH and then taken a gander at the same part on a full size TLB....well, that darn plate on the M59 sure isn't all that beefy. Of course it does work OK....and I've never heard of one breaking or bending....but there has to be a limit somewhere and tractor weight just might be where the limit lives.

But maybe there's still room for you to add some weight....because it just might be that when the Kubota engineer wrote that part of the ops manual he was assuming that the owner already had the full allowable complement of three factory wheel weights per side and are meaning to say not to add loaded tires to the wheel weights that are already there. Could be.... after all, wheel weights really are a better solution even if more expensive, and the guy is probably some sort of engineer so he's got little concept of money or the real world outside anyway.... ....so maybe he just figured anyone with an M59 would go with wheel weights first.

Can't help much more than that. Weight isn't a problem where we are here in Colorado. Just as it comes stock is good for us here in the Rocky Mountains where what we want is light weight coupled to high muscle. The M59 sure has both those things... just as long as we can agree that weighing something over 4 tons is to be considered "light".

Whatever you try, good luck and let us know.
luck,
rScotty

My L39 seems just about right at just over 4 tons weighted. The 37 net HP engine does have a lot to lug.
The M59 at just under 5 tons should be nice and stable. I move my L39 around with the hoe to position. The hoe is a lot tighter than the loader with 1,800 plus hours on the machine, no issues.
The m59 with lots of power should not notice the weight.

 

[Piston]

I would imagine that with such a beefy front end loader, you would almost HAVE to load the rear tires to be able to use the tractor/loader without anything on the back? Or something light like a landscape rake?

I believe you can purchase the M59 without the hoe right? I'm curious if many of you with the M59 (or really any TLB) use it often without the hie on it?

I think I'd rarely have the hoe on as a lot of the jobs I do require the three point hitch.

 

[bdog]

I would imagine that with such a beefy front end loader, you would almost HAVE to load the rear tires to be able to use the tractor/loader without anything on the back? Or something light like a landscape rake?

I believe you can purchase the M59 without the hoe right? I'm curious if many of you with the M59 (or really any TLB) use it often without the hie on it?

I think I'd rarely have the hoe on as a lot of the jobs I do require the three point hitch.

The manual recommends loading the tires if the hoe is removed. I think you are right it would need the weight without the hoe as the loader is stout. The hoe is heavy though and sticks far out the back. I have been pulling out some concreted in posts and have hit the pressure release on the loader and the back never felt light. Also had heaping loads of moist dirt and it didn't feel light in the back at all. I was wanting to load the rears just for more stability when using the hoe.

 

[TBarD]

I would imagine that with such a beefy front end loader, you would almost HAVE to load the rear tires to be able to use the tractor/loader without anything on the back? Or something light like a landscape rake?

I believe you can purchase the M59 without the hoe right? I'm curious if many of you with the M59 (or really any TLB) use it often without the hie on it?

I think I'd rarely have the hoe on as a lot of the jobs I do require the three point hitch.

I use the M59 both with and without the hoe. With nothing on the back the rear wheels will slip just driving around if in 2wd. Mounting a heavy box blade on the back (see attached pic) it is again very stable however. For any 3pt earthwork such as pulling a grading scraper it would be much better to weight the tires or wheels, however I have never done so as one can get by ok for small jobs by just engaging the front axle and maybe adding some more weight to the front. I doubt if weighting the wheels would be a problem when using the hoe, except perhaps when using the hoe to lift and reposition the tractor. (BTW, those are Fit-Rite cylinders on the back, and I installed the rear auxiliary hydraulics shown with the Kubota add-on kit).

 

[RDrancher]

I use the M59 both with and without the hoe. With nothing on the back the rear wheels will slip just driving around if in 2wd. Mounting a heavy box blade on the back (see attached pic) it is again very stable however. For any 3pt earthwork such as pulling a grading scraper it would be much better to weight the tires or wheels, however I have never done so as one can get by ok for small jobs by just engaging the front axle and maybe adding some more weight to the front. I doubt if weighting the wheels would be a problem when using the hoe, except perhaps when using the hoe to lift and reposition the tractor. (BTW, those are Fit-Rite cylinders on the back, and I installed the rear auxiliary hydraulics shown with the Kubota add-on kit).

Can you take a photo of your spool layout from the drivers seat?

 

[TBarD]

Can you take a photo of your spool layout from the drivers seat?

Sure, here you go. This is with the seat folded forward. The console area is pretty cramped so it would be challenging to get a good install without buying the Kubota kit. I had to cut out the slots in the console a bit at the back to make room for the spool levers. The spools have a detent/hold position on one side.

 

[RDrancher]

Interesting. Thanks!

 

[Piston]

I have two questions regarding this machine.

1. Does anyone know the operating pressure of the hydraulics? I see in the specs that it pumps 16GPM to the front and rear remotes (which is quite impressive over the average CUT) but they don't list what pressure that is delivered at. Obviously the higher the better for skid steer style implements like snow blowers, log splitters, and specifically tree shears.

2. I have a JD 410, and although there is no "buddy seat", my 2 yr old can easily stand in the space next to me in the cab while I'm operating the loader.(the space to the left of the seat that allows you room for your legs when you swivel the chair around)
Is there room on the M59 for a small child to stand next to you? If anyone has any pics showing the space available in the operating station I'd love to see.

(Please please please keep the safety comments to yourselves regarding a child on the tractor)

 

[TBarD]

I have two questions regarding this machine.

1. Does anyone know the operating pressure of the hydraulics? I see in the specs that it pumps 16GPM to the front and rear remotes (which is quite impressive over the average CUT) but they don't list what pressure that is delivered at. Obviously the higher the better for skid steer style implements like snow blowers, log splitters, and specifically tree shears.

The M59 has three hydraulic pumps and subsystems, not including the HST drive. There is a small pump dedicated to the power steering that we don't care about. The main hydraulic pump powers almost everything, and a smaller swing pump powers the swing circuit of the backhoe. From the service manual the main pump has a rated pressure of 2780 - 2910 psi, and the swing pump is rated at 2420 psi. Pressure is maintained by relief valves and flow depends upon engine speed. Full pressure will be achieved once the engine speed is increased to some minimal level (unknown). The rated flow of the circuits is given for 2700 rpm.

I use a skid steer hydraulic auger on the front (as do others who have posted here) and can confirm that the flow and pressure is sufficient, although this is one case where I usually do crank the rpm up high. So long as one picks skid steer attachments rated for about 15 gpm it should perform fine. A front snow blower for example should be ok. I am thinking of getting one myself in the future and looked into it enough to verify that it would work.

2. I have a JD 410, and although there is no "buddy seat", my 2 yr old can easily stand in the space next to me in the cab while I'm operating the loader.(the space to the left of the seat that allows you room for your legs when you swivel the chair around)
Is there room on the M59 for a small child to stand next to you? If anyone has any pics showing the space available in the operating station I'd love to see.

(Please please please keep the safety comments to yourselves regarding a child on the tractor)

There is plenty of room for a passenger on the left side as you mention, as can be seen in the picture from the rear that I posted above. When the hoe is on there is additional room at the rear, in particular a large "floor" between the seat and the hoe controls. There are plenty of hand hold on the fender, rops, and backhoe control console.

 

[bdog]

I will second what he said on the room for a passenger. My four year old always goes with me on the M59. Heck I have even been teaching him how to run it http://youtu.be/Q7XCxnLcG1A

There are good steps and hand holds where he can climb up and down on his own. There is plenty of room for him to stand beside me. The only time it is tricky is when spinning around to use the hoe. There is plenty of room for him when using the hoe but he is right in the way when you are spinning on around.

Obviously I am not the safety police because I do this but I always have my backhoe on. It would be pretty hard for him to fall in front of the tires and if he somehow managed to fall out the back he would just hit the ground. Personally I would not feel comfortable with him standing beside the seat if I was running something like a shredder because it is possible to lose your balance and fall straight out the back if you are standing beside the seat.

A buddy seat would be cool and there is room for one you just would have to make it easily removable for when you spin the seat around. I have a buddy seat in my 4440 and my son loves it.