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WATCH THIS BEFORE YOU BUY A HYDRAULIC PUMP OR CONTROL VALVE FOR YOUR HARBOR FREIGHT TOWABLE BACKHOE
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- Опубліковано 24 кві 2021
- In this video I show you how I got my harbor freight towable backhoe working again without buying an expensive control valve or hydraulic pump or hydraulic cylinder . Later in the video I demonstrate its functionability while leveling a space for an above ground pool . Also join my harbor freight towable backhow repairs and testimonial group using the link below / 1400661946961756
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Disclaimer I do not guarantee this to work nor do I claim any responsibility do at your own risk because it worked for me does mean guarantee it will work for you.
I know this video was put on awhile back but it just saved me a lot of time and money to fix mine, thank you so much.
Thanks thats what i'm here for . please do me a favor and like and subscribe also your welcome to join my hf backhoe facebook group here's the link click on it facebook.com/groups/1400661946961756
i had the same problem, took the control block apart and in one of the end sections there is a small opening, i mean the size of a pin, if you blink you can miss it, cleaned it out put it back together, worked like new. about a year later it happened again saw what you did, tried it, worked great so thanks for posting, alot quicker fix. i wanted to post a small video like yours but just not computer savoy.
Thanks glad I could save you some time this time around . Please join our harbor freight towable backhoe facebook group in the link in description your invited to share your experience there as well
My machine was acting the same way. I read through many of the comments and paid most attention to those from Lynn Russell who obviously has the credentials for this topic. It was very easy to take the four allen head screws out of the relief valve to take it off. Nothing seemed to be wrong with it. The valve itself was still smooth and polished. So I left the ignition switch OFF and gave the starter cord one good pull. A gush of fluid came out. It's fairly milky so I guess I should change it. But after I put it back together it's working as normal again. I can only conclude there was some gunk keeping the relief valve open. I'm very thankful for Lynn's comments and that a safe and very very easy fix worked. It's easier than swapping the hoses would have been.
Before you anoint Lynn keep in mind if it wasn't for me you would have never seen Lynn's comments and we all can agree that there is dirt, sludge, or something causing this in the line . How you handle the situation is up to you. Most tried my method and worked fine. Not alot of people feel comfortable messing around with that box. Which could open up a can of worms.
@@HoodHandyman I'm not criticizing you. I'm glad you tried something and put it out here. I'm just saying there is a method that also seems to work and doesn't risk anything. As a matter of fact, it hardly opens the hydraulic system up like moving hoses does. I thought about moving the hoses and then, with the switch off, pulling the starter cable instead of actually starting the motor. That also wouldn't have any risk. But opening the valve goes straight to the probable source of the problem.
@@jimbooth507 point taken. Thanks for your input. Please like and subscribe.
@@HoodHandymansomeone who calls a woodruff key an Allen key? I’m not listening to that individual. The was a check valve stuck open. Swapping lines isn’t anything you should ever do with Hydraulics. 3000+ psi? Pffftttt stupid
I did it!!! And it worked. Had to have my husband keep his finger on the holes to prevent the oil leaking out switched lines turned on and the moved the handles heard the change in motor and turn off machine changed the lines back (in line back to out line cables). It works !!!!! Sure glad I found this site!!!!!!!
Glad it worked and thanks for the feedback.
I just ordered one and I'm glad I have some good people on You Tube who can help me out ! Thank You Sir !
Thanks you for the kind words hope you enjoy it.
Thank you so much for posting this. My machine had the same symptoms and this did it
Thats great to hear please like and subscribe also join my facebook group link in the description!! and share the news with our other group members please, thanks for watching glad I could help.
Thank you very much!!!
Fixed mine exactly.
I left mine just above idol, and when I hit the lever, it gassed out and killed the motor. No damage done.
I'm Glad. Thanks for watching. Do me a favor please like and subscribe
Awesome troubleshooting Handyman. You are totally right about no information out there. My problem was I worked mine so much until the pump was literally worn out. There was no pressure leaving the pump. Great job!
Thanks for watching Larry good thing they still sell the pumps. Theres only 1 show in town i'm thinking about buying one to have as a spair. Who would have througt a pump would wear down before a cylinder .
@@HoodHandyman Mine included a rebuild kit for all the cylinders. I know we get what we pay for but using it to clean out and enlarge my pond saved me about 30 thousand dollars. Took a while because of its small bucket but got it done. Many more jobs done since and still going saving money. I learned something new the other day. If the needle fittings wont take grease just get the pressure from the boom off the pins and grab the pin head with a large pair of channel locks. Rotate them 180 degrees and the grease will fly right in. Support the boom out on the machine on the bucket to get the pressure off the pins as needed to turn them. Take care buddy.
@@larryhazelwood5853 Thanks for the tip on the grease fittings.. I believe that will work.You can tell when it needs grease it starts squeaking I also turn the gas off when not in use. And I will now start greasing the fittings after each use. . I hear you on the pond I want to pour some concrete this year. Definately not trying to use a shovel.
Hi Everyone !, I have an HF Backhoe that is having similar problems today 5/6/2023. I purchased my machine in June 2020 which arrives in September 2020 during the pandemic. It has been a great unit with no real issues until today. I fueled up the machine after a long 2022/2023 winter being outside due to no inside storage. It still fired up on the first pull and the controls worked fine enough to get the machine turned around to descend the side storage small hill to the main backyard. While descending the controls started moving rather slowly when pushed all the way in, either direction. At the bottom of the hill, I boomed out & bucket down to the ground to prepare to move the backhoe; when the backhoe controls suddenly just quit working! I have operated some John Deere & Case heavy equipment in the past but never experienced anything like this before. The first thing I did was to check the pump....It was "OK" and still pumping fluid. So I thought I would research the issue on UA-cam and found this video. This will be a great relief when I try this to see if it works for me.I will post update results after I try this fix. This was very informative Handy Hoodman and Thanks for the tips too!
Thank you. Have you joined our harbor freight towable backhoe Facebook group? Link in the description. Thanks for watching keep us posted.
Reversing the flow and the very lengthy explanation that really had no answers is a bit scary.
That being said, it seems like a lot of people had similar situations and did try this, so maybe it isn't as dangerous as I would think.
I found this in trying to find the videos pertaining to upgrading the hydraulic pump, in order to get a bit more flow and overcome the sluggishness and inability to work more than one control at a time.
Since getting this two years ago, I am surprised at the amount of people that are on UA-cam with one.
I love it myself.
I keep thinking of ways to add to it. I would love to be able to put a scoop bucket on it, as well as an easier way of moving it around.
Right now I just set the bucket in the back of my John Deere lawn tractor trailer and lift the backhoe enough to clear the front legs and then I can quickly move it around the property.
Thanks for watching please like and subscribe . You also invited to join our harbor freight towable backhoe facebook group facebook.com/groups/1400661946961756
I am switching out most all the hydraulics on mine. Putting joystick control, 16 gpm pump, relief valve, and larger lines on the top of the cylinders. I only have 15 hours on this machine and when I dumped the hydraulic oil I couldn't believe how dirty it is. Plus they used Teflon tape on some of the fittings which is a big no-no on hydraulics. So it's no wonder that you are having problems with stopped up valves. I am going to flush my system out before installing the new stuff.
Thanks for sharing please join my Facebook group in the link and share your experience and gain insight as well thank you.
Hello. Just read this about swapping your valves , n pump out. What about the fittings for said items??? I have heard that these are plumed with Chinesim fittings with oddball hoses and threads. I'm thinking about getting one of these motor shovels and have gotten use to joysticks as well. The old Ford Backhoes had 4 stick control back when I was a kid. I've torn some crap up trying to use them , and hafta face dad , n Grandpa. Anyway back to the subject , where were you able to get your parts , and were they expensive???
I ended up completely redoing the hydraulics and hoses with the help of Walker Hydraulics here in Wilmington Nc and they didn't have any problems getting the correct fittings to fit the original fittings on the cylinders. The hoses are normal 1/4" lines and on the new joystick spool all the fittings were reduced down to number 5 jic fittings. I am going to make a video of the completed project and post it soon because as much changes that I made it would be much easier to film it. All the mods I did run around $2500.00 and that's a crazy amount but it's like I want it now.
Do you happen to have a reference number for the joystick spool? Update?
thats exactly what I was thinking, you maybe had some trash in the line and reversing the line broke the trash loose. good video and trouble shooting
Just be really careful you will blow some stuff up reversing hoses like that. No joke serious injury or death are definitely on the table but I'm glad you and everybody have a solution!
I've joined your FB group because of another video. But I forgot to subscribe here. Fixed that too. Keep sharing Brother!
You may want to look into a new Hydraulic Pump I got one at one Hydraulic in Texas
The pump on the hf is a 2point 7 that's why it's slow an weak so I put a 4 point 1
To replace it pump an change over parts run me about 175 it's more efficient an faster an can use 2 hand controls at same time
Thanks for the tip. Fell free to join our facebook group in the link in description we love to trade new ideas. Thanks for watching.
I had this problem straight out of the crate. I do have a hydraulic background and I would never swapped high pressure and return hoses. My problem was just some trash on the pressure regulator valve. I see a lot of people running these things wide open throttle. Half throttle works good for me and I have lifted 9 foot crosstie at full extension easily. and digging wet clay by the bucketfull at full extension. Besides half throttle saves on fuel. I can work continuously for 4+ hours at half throttle.
I agree with running at full throttle. Trash was likely the culprit with mine as well . Thanks for your comment please like and subscribe.
You will more than likely find a piece of hose rubber the lines were not blown out with air to check for trash in the line before assyemble.
Thank you for sharing this experience.
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Great info...thanks. Backflushing may have dislodged a blockage. Might want to drain the fluid again to see if you can find what that blockage was. It may have backflushed into the tank.
I agree could have been anything. Good practice always strain hydraulic fluid when filling
I was just thinking this, likely a blockage that was removed with reverse flow.
Thanks for taking the time to post this.
Thanks for watching. Please like and subscribe. Also your welcome to join our group in link in description.
thanks for the video..... that worked like a charm on my harbor freight towable backhoe
Thanks for watching . Glad to hear that. Do me a favor. Like and subscribe and don't forget to join my. Harbor freight backhoe Facebook group Thanks
Thanks for watching . Glad to hear that. Do me a favor. Like and subscribe and don't forget to join my. Harbor freight backhoe Facebook group Thanks
I guess it is my turn for this problem now lol. I was in the middle of digging, swung the boom, then nothing happened after than. Like you said, if it doesn't work, you are not out anything.
That is correct.
@@HoodHandyman it totally worked for me, digger is back in action. I am going to add a filter coming out of the tank and going into the pump. Might be able to catch the crud earlier.
@@charlesswhitlock Thats wonderful news glad to hear. Do me a favor please like and subscribe and join our harbor freight towable backhoe Facebook group. Link in description.
Hay handy man I like the way you look at a simple way of fixing things no need and getting into looking everywhere but
Keep it simple
Thanks appreciate that. Feel free to joint my Harbor freight towable backhoe Facebook group for more tips and tricks.Please like and subscribe.
Thanks for the info
your welcome . Do me a favor if you already haven't please like and subscribe
That is crazy. Glad it’s fixed but that’s how you blow stuff up. 🤣
Thanks for watching
Do your rams or boom leak down even while running?
no thanks for asking . please like and subscribe.
Great video. Thanks.
Thanks for watching please like and subscribe and your invited to our Harbor Freight towable backhoe group facebook.com/groups/1400661946961756
I just finished assembling mine today. Started up great but minor movement. Same symptoms as yours. HF is sending me a new pump, but gonna try your fix in the morning.
Go to our Facebook group and join . (See link in description) you may find more answers there .
Thanks for this video.
You got it my friend. Your invited to join our harbor freight towble backhoe Facebook group see link in description
The OEM filter is garbage.
Can have the element come apart and then you have fragments throughout the system. The results can be a lot of damage.
Thanks for commenting please like and subscibe
Seems to me the filter should be between the tank and inlet to the pump, not on return line. Not really protecting much the way they have it.
you have a valid point thanks. please like and subscibe
After seeing a lot of people saying they are replacing new pumps and getting bigger hoses I'm not sure if I should buy one of these now. Maybe I should spend a extra grand and buy a better quality trencher.
They are the most reasonably priced unit on the market and it can be delivered to your doorstep can't beat that. but I respect your opinion give it a try.
This is potentially a pretty dangerous hack. When the flow is reversed through the directional control valve the pressure relief valve is completely defeated. That means there is no safety relief for the output of the pump and pressure can build to the point where it either stalls the engine (not too serious) or breaks something in the hydraulic system, potentially causing physical injury. This pressure build up will happen very quickly, in much less then 10 seconds, once the hydraulic cylinder that is being moved gets to a deadhead position. If anyone is going to do this, only have the engine at an idle so it stalls easily.
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Hello ,Trencher Family. So I bought mine for $2499.00 ,took most of the year to get it.That was three years ago .It worked for six weeks then nothing.So I wont bore you ,,,,One new pump higher gpm ,,still didnt work ,,One new monoblock ,,HURRAY works again.One leaky hose ,,replaced ,one snapped fitting,another hose .changed out the oil filter too to be sure ,,,,the Engine almost fell off the trencher , the bolts all came loose ( assembled by 7 yr old chinese girls ?) .Anyways now its a beast again and im still in it for around 3k $ investment.Was I aggravated ,yes ,but its still a great machine for the price .I watched enough videos to say some trencher owners seemed to have no problems at all while all the rest of US ,suffered these problems .Oh and I tried to get H F to send me a new pump and they said it was sent but lost ,then six mos. later I get a package from H F ,,,and it was a on/off switch for whatever? Not a pump.I dont expect youll get great service from Harbour Freight.Hope this helps .
I have had mine for over 20 years. It is a good machine,when it is working. When I first assembled it,I crab walked to my back yard and started to dig with it. It quit on my first try. I called harbor freight and they said it needed a control valve. I kept in touch with them,for over a year,wanting to o know where my part was. They kept telling me it was on back order. Then one day I called and told them I had been waiting over a year. Then the guy said the part on order was only $4.50.I said no way this part cost that much. They had ordered the decal for the operation of the controls. The guy said he had a control manifold in stock,and sent it and that solved the problem,but I lost a year of use. The machine has been with it's problems,all hydraulic. It has paid for itself, and mechanically,I have had no problems. The hydraulic system is the weak link. I drained a gallon of water out of the oil tank and I keep it covered. Don't know how it gets in.I have no leaks just changed oil twice to get the water out. Disconnected the cylinders,and moved the piston by hand and they were full of water.i replaced 2 boom cylinders and the control valve and still can't get it to raise. The pump shoots oil over 15 feet. The controls work,just no power. The machine isn't wore out because I have had so much down time with it. I would buy it again,even with all it's problems,it will dig when it is working.
I've had mine for 8 yrs and it just started doing what you described. going to try your fix and see if it works
I have had to tighten the packing nuts in 2 of my cylinders because if they back off it won't do anything either
Why would the filter be on the tank return? Shouldn't it be between the tank and pump?
should i guess but thats the way they designed it. thanks for watching please like and subscribe
With Harbor freight, you get what you pay for. And one of the things you pay for is some of the most incompetent technical support I have ever experienced.
Thanks for your feedback please like and subscribe
You hidro locked your valve. I did it on my jeep I
With hydrochloric assist staring with 35-in tires, the valve gets low by pressure on your o rings. They are a cheaper valve body and alow bypass and it traps the fluid in one side. Sorry about the thumbs down I got fat fingers
sounds about right thanks for commenting please like and subscribe
I tried everything that you did and nothing you said to see if the pump will shoot out at least 6 feet mine is only going about 3 feet so I think I might need a pump but do you no where to get one ?
first off like and subscribe and also subscribe to our group in the link in the description we have a few qualified people in the group to offer additional help . but to answer your question the only place i have found would be harbor freight to order parts for that machine.the parts list , phone number , and a few seals spair seals for your machine should have come with it. let me know if you can't find it and i will give you the number off my manual . the pump runs about 150.00
here you go Joe the phone number to order and the parts list 1-888-866-5797 manuals.harborfreight.com/manuals/parts/P62365.pdf
Thanks I just got to figure out witch one is bad the pump or the control valve.
@@jeffreystines7100 if it shot out hydraulic fluid 3 feet i think it still works . i mean i didnt put a tape measure on it . You coud take it to your local hydraulic service place and have them test the pressures then you'll know.if you take the line loose at the filter outlet you can count how many gpm it takes to fill a bucket . that could be a tell tale as well
I called Harbor freight and they said that that my back hoe bid not come from them they they don't sell red one's your's is just like mine they said they need a item number and I can't find it did you get yours from there I need the control valve
Mine is HF u can still buy it if that's the one you need. Call back talk to someone ealse.
I had to replace the control valve just got it today it's run great now
@@jeffreystines7100 thats great what was it doing and how did you find out it was the control valve?
@@HoodHandyman the hydraulic Rams would not move at all so took off One of the hydraulic lines and no matter which way I went on the control valve hydraulic fluid would come out it was trying to push from both sides of the ram at the same time
@@jeffreystines7100 that remedy worked for me and some people who tried it after watching my video I'm sorry it didnt work for you but at least you were able to try it and rule out some things in that reguard before spending that money like my video said. So i'm happy you were able to get it up and running thats awesome.
Check valve was stuck
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Glad this fixed it but NO ONE should ever do this.
I was in a situation where I did not have much choice, those who tried it and it worked have no regrets. they saved money, time, and didn't have to call a tow truck.
@@HoodHandyman Should union the pressure and return together and bump the pump. The reason I say not to do this is because some return components are not capable of withstanding pressure, even for one second and damage or injury could occur. 16yr hydraulic tech here.
@@diazaa I understand thanks
It is ok to do that but safety precautions should be taken in case the line has a check valve in it. If the line explodes it could send out fluid that could injure someone. Another option would be to disconnect the spark plug to the engine so it won't start and hand crank the engine a few times while the lines are reversed to see if that will clear the obstruction. Won't build up such a dangerous psi that way.
Mine did that so I had one cylinder fixed
An at same time he made the hole at cylinder feed hose bit bigger its doing ok
So one at time I've increased the feed pipe holes works lots better
Also same type pump on log splitter
Sound advice . like subscribe , join my group
Sounds like trash plugged something. You can always blow compressed air in the main feed line and the air will sit on top of tank and push fluid out. Hurry up and hook up your lines.
Lucky you didn't have a check valve in that line. Would have blown your hose.But glad it worked out.
Thanks join our Facebook group on the HF backhoe. Link in description.
I know what a check valve is . it make sure the flluid goes in only one direction . Your right If it had one this probably would not have worked but it did :)
Maybe some of that paint from inside the hydraulic tank clogging it
your probably right ,please like and subscribe
My swing cylinder only moves out
No return or anything i change control value toke lines lose blowing fuild ok every cylinder works fine but swing
sounds like a uestion for our HF towable backhoe facebook group your welcome to join. facebook.com/groups/1400661946961756
sounds like you dislodged some debris
Exactly.
What's engine HP and pump coupled directly to engine or any reduction!?
could you be more specific so I can give you an answer thanks
@@HoodHandyman I need to know the Engine HP max RPM ? And also need to know engine is coupled directly to Hydraulic Pump Or Any RPM reduction Gear box Used!? What's Hydraulic pump specifications!?
@@naikengineering25 I'm not sure . You can join our group in the link in the description our members probally can answer that faster then I can.
@@naikengineering25 mine is a 6 horse engine
@@rogertaylor8615 Thanks for reply I would like to know more about it's hydraulic pump and cylinder
just purchased the backhoe, joined your fb group, and the hydraulic system is not working.
Sorry to hear that are you still under warranty ?
@@HoodHandyman sure yes, warranty is working. Ship me a pump.
@@MrJerryshen we have members who are knowledgable about the HF towable backhoe that may be of some assistance through thier own experiences feel free to post questions and get answers. And thaks for joining
@@HoodHandyman thank you for the group, I think that would be my only hope.
Yep ,,im on this same ship as everyone else .6 mos. No pressure .changed pump not from harbour freight .taken relief valve out examined adjusted while running nothing .Im going to change monoblock valve out for a higher quality control now ,,,upgrades,,,, but I only paid 2499.00 for my trencher brand new from harbour freight ,,,so the added expense's not too bad .And dealing with Harbour Freight about this matter ,,My advice dont waste your time unless you like to wait on hold for long periods of time.
So you had a blockage you blew out
Yes I believe that's what it was
I’m thinking about buy one. Not sure. China junk or not.
if they run the 2499 deal again i would jump on it. Cant beat it for under 3 grand . Sure takes a load off when using a shovel
Thanks for sharing this info! Haven't had any problems with mine, and just upgraded the pump (ua-cam.com/video/VIQbUcIsBvg/v-deo.html), but good to know what to look for if this happens.
Thats great SB thak sfor watching please like subscribe and join the group
Thats great SB thak sfor watching please like subscribe and join the group
So you had no idea what you were doing and got lucky. Still did not solve anything for the future.
Alot of people saved money watching this video my friend. Did you find the answers you were looking for?
Dude get to the point!!!!!
I'm glad he took the time to cover so many points. Good to know all those points in case backflushing doesn't fix the problem.
How muck does this thing cost???
www.harborfreight.com/9-hp-towable-backhoe-62365.html wait for the yearly coupon . please like and subscribe