Man not having a manual for this is a tough one. I can’t believe they don’t have any information about it. But you take her under your wing and she’s running beautiful. You seem to know what your doing. I would say for not knowing how this is put together u got it figured out. That’s impressive 😊 I’m not a mechanic I would go with your gut feeling on this one for sure that’s the only thing you can do. But for anyone who knows about hydroelectrics take their word and apply it to what your doing. You did a great job Dave. 😀👍
I would highly recommend a steering priority, So that for safety sake you always have directional control. For the loader functions as well as the drive I would recommend load sense pumps in series rather than a fixed displacement pump but if you want to run fixed displacement gear pumps then you would need a drive control valve a flow divider that can keep power evenly distributed between the traction motors
You're on it dude! It has life , I know you will bring the cycle times down and crack the abrupt/uneven hydrostatic drive issues an i can't wait to see it. As always thank you for posting.
Great work, Dave! Nice machine. For the "gas pedal", you could get some inspiration from a Toro mower. I remember driving one like 30 years ago and it had a single pedal which you could move forward and backward, hinged in the center.
You need a multi stage pump of 5-7gpm. On the suction side and return your ok as it’s low pressure. The discharge side of pump is high pressure don’t use steel fittings as their working pressure is only 150 psi.
I would get a pump with six to eight circuits so you can do one for each of the wheels one for the Tilt and lift for the bucket and turning. Or get a bigger hydraulic pump with a distribution valve block
Dave one of the last things you said was, "I don't think this one has enough in it". If that was also a hydraulic oil tank it is very low could that have been some of the issue? In any case really like what you're doing and keep at it i bet your close to figuring it all out.
I’d be interested to know the specification and flow rating for the pump you used. I have a hydraulic conversion to do and I’m not sure how to size the pump.
Hi i have bought a MF40 like you have engine is good but the issue I have is the backhoe part lowers on its own and there is no leaks ? What could it be ? Thanks from Scotland
Probably had a gear box with multiple pumps and possibly variable volume (piston pumps) originally. That’s probably what failed. Kinda like a skid steer. The steering valve is called (an orbital valve). On (small) pump for steering only, don’t want to loose steering if ya blow a line any-wear. Bit of a drawback having one motor per wheel ! 1 pump = steering, 1 pump = hydraulic controls, 4 drive pumps = crazy gear box and plumbing! Drive pumps are variable for power (digging) and speed (transport). Don’t forget hydraulic coolers! UGH 😣
Je moet de pers van de pomp naar het stuur doen en dan de retour van het stuur naar de pers van het andere blok en die retour naar de tank doet alles gewoon wat hij moet doen hoe je het nu doe kan niet je stuur krijger nu geen olie omdat je bedienings blok een door stroom ventiel is
Man not having a manual for this is a tough one. I can’t believe they don’t have any information about it. But you take her under your wing and she’s running beautiful. You seem to know what your doing. I would say for not knowing how this is put together u got it figured out. That’s impressive 😊 I’m not a mechanic I would go with your gut feeling on this one for sure that’s the only thing you can do. But for anyone who knows about hydroelectrics take their word and apply it to what your doing. You did a great job Dave. 😀👍
I would highly recommend a steering priority, So that for safety sake you always have directional control. For the loader functions as well as the drive I would recommend load sense pumps in series rather than a fixed displacement pump but if you want to run fixed displacement gear pumps then you would need a drive control valve a flow divider that can keep power evenly distributed between the traction motors
The Improvising Mechanic Dave - nice work figuring out how to make that machine operate. Thanks for sharing with us!!
You're on it dude! It has life , I know you will bring the cycle times down and crack the abrupt/uneven hydrostatic drive issues an i can't wait to see it. As always thank you for posting.
Cant wait to see this ole girl operating again
Great work, Dave! Nice machine. For the "gas pedal", you could get some inspiration from a Toro mower. I remember driving one like 30 years ago and it had a single pedal which you could move forward and backward, hinged in the center.
You are getting it done hillbilly!!! Nice work...
You can use an power steering pump from a car for your steering. As a separate system. I did that on my loader project and it worked great.
You need a multi stage pump of 5-7gpm. On the suction side and return your ok as it’s low pressure. The discharge side of pump is high pressure don’t use steel fittings as their working pressure is only 150 psi.
You sound like Wes.. Great video as per.
Another Excellent video...
Case drains for drive motors are EXTREMELY important. Looks like you ran a temp line back to the tank which is good. NEVER block one off.
Dave this look,s like a Willmar Wranger loader J Watkins in Tennessee
I would get a pump with six to eight circuits so you can do one for each of the wheels one for the Tilt and lift for the bucket and turning. Or get a bigger hydraulic pump with a distribution valve block
Great work ... I forgot the fuel return line too ...
Dave one of the last things you said was, "I don't think this one has enough in it". If that was also a hydraulic oil tank it is very low could that have been some of the issue? In any case really like what you're doing and keep at it i bet your close to figuring it all out.
I’d be interested to know the specification and flow rating for the pump you used. I have a hydraulic conversion to do and I’m not sure how to size the pump.
What's the GPM on your pump they run around 24 to 34 GPMs
Do you have enough hydraulic flow. Seems when you steering evering stops. And lfting the bugged is real slow.
Gave it looks like it's a Walden loader made in Oklahoma.
I think it needs more fluid in the tank for the steering maybe in both
Pretty Neat!
a bigger pump would help on most of your issues the demand is to hi for that little pump
Do you have any hydraulic relief pressure from the pump just running in the engine
OK , Now we know why HIGH VOULME PUMPS ARE NECESSARY.. Yes you need a 40 to 50 GPM pump . This should work the same as a SKID STEER loader . Thanks
😊😊😊😊😊
It will pull better with a bigger pump. You don’t have the flow in the oil. It’s taking the path of least resistance.
Man I saw this thing on marketplace I’m regretting not getting it now
Your bucket hydraulics can be used for steering also drive motors by themselves because they are the brakes too
Run an automotive powersteering pump for your steering.
Hi i have bought a MF40 like you have engine is good but the issue I have is the backhoe part lowers on its own and there is no leaks ? What could it be ? Thanks from Scotland
Internal cylinder leaking likely
Brass and steel It doesn't matter it's aluminum and steel that will corrode😊
En de wielen moet je in serie zetten pers aan de retour van de ene naar de andere
Probably had a gear box with multiple pumps and possibly variable volume (piston pumps) originally. That’s probably what failed. Kinda like a skid steer. The steering valve is called (an orbital valve). On (small) pump for steering only, don’t want to loose steering if ya blow a line any-wear. Bit of a drawback having one motor per wheel ! 1 pump = steering, 1 pump = hydraulic controls, 4 drive pumps = crazy gear box and plumbing!
Drive pumps are variable for power (digging) and speed (transport). Don’t forget hydraulic coolers! UGH 😣
I can't help wonder it the roll cage is from a dozer and turned around backward.
Je moet de pers van de pomp naar het stuur doen en dan de retour van het stuur naar de pers van het andere blok en die retour naar de tank doet alles gewoon wat hij moet doen hoe je het nu doe kan niet je stuur krijger nu geen olie omdat je bedienings blok een door stroom ventiel is
That thumb made mine hurt, I bet that caused some colorful language
Hay Dave you still alive? Haven’t seen any new videos for months!!
yeah just been busy working
your mics taken a dump on you
you are him
If steel only has 150# operating pressure why r all these companies running it with 3000 psi