Harbor Freight trencher 65162 hydraulic speed upgrade

[@txsfasano]

I found your KZbin so I upgraded my pump. Works great. Pump Salami Hydraulic Gear Pump 1.6PB4.1D-R080S0 Model # 6142?5002 ( ? looks like 3 or 8 ) I just installed the one above on my backhoe / trencher The "D" is cw (clockwise) when ordering pump. OR 1.6PE4.1D-R080S0 Model # 614470242 (Both pumps are the same) Adapter 6MB-6FP Adapter 8MB-8FP Thread Sealant with PTFE Permatex 4 ounce #80632

[@donprater6325]

F the

[@edlisten]

I just bought a used HF backhoe, and your video's was a big help in knowing what I was buying. That said. I have one cylinder that doesn't stay in place, and another that has no power and whistles. I am new to hydraulics, so before I start throwing money at this, I thought I would see what you suggest I look at first.

[@goneredcar1]

If you would like to confirm if it's a ram or the controller switch the Rams with the one that works. That's because if a ram is leaking internally there will be no indication of leaking oil. Remember this is a bypass hydraulic circuit so oil is always flowing. When you determine the problem check with a local hydraulic hose and cylinder shop for rebuilding. That may run from $75 to $100 for rebuilding.

[@edlisten]

Thank you for your help. I was able to determine that one cylinder is the ram, and the other is one of the valves. The one that is on the valve I can here a whistle sound coming from the valves when I there is a load. I plan to change the o-rings on the hose, but is there something that I might also need to check on the controller switch itself.

[@goneredcar1]

Yes, good eye been in it for a long time. I have had a good time playing with trencher and use the heck out of it.

[@moosiem60]

what would a bigger hose with the pump that came with the trencher do for it

[@Benpoetter]

When you had that pump on could/ did you run it on full Throttle. And I see that they don’t make the pump that you put on anymore but they make a new and improved version. And is this a different pump than in your other video about the speed upgrade because this one says that you had a 20% increase and your other video said a 35% increase. And also, did you have any problems with the control valve after you did the new pump? Did it hold up in long term use? I am wanting to put a faster pump on my trencher but don’t want parts to break. I’ve also herd that it will take a very long time with COVID to get replacement parts and don’t want it to break in a job and be don’t for along time.

[@goneredcar1]

I only had this pump on for a short time but I ran it at about 3000 RPMs. I then replaced the engine with a a diesel and a larger volume pump. I have had no problems with this setup and just reached 400 hrs. This is not a back hoe it’s a light duty trencher or as I have said in the past hydraulic shovel.

[@James-fr9sq]

What is the name of the new pump?

[@timkole5969]

Hi my name is Tim I was just wondering how I can contact you to find out the information on that pump

[@hunterjh13]

thank you again for info, just to let you know, i changed cylinders. and moved the one with the seepage problem that was on top and now i put it on the bottom where it holds entire boom and now its doing the same thing.the top one works fine and bottom one has the problem ,so i am thinking it is the hydraulic cylinder. what do you think?

[@MrAnthonyp28]

Hi Warren Lancaster: is the control filter, take it apart clean it out with air gun or so and all will get back to work normal.

[@f1948s]

Thanks, any info on the spec changes of pump etc as the other guy asked would be helpful.

[@russellbest3761]

I loved your video. I’m about to buy one and would love to know which pump you found best? I’ve watched all the videos so I’m upgrading everything. Which pump?

[@goneredcar1]

The information and discussion with the information your looking for is in the text section of the video. The recommendations and part numbers can be found there. After checking there and have a specific question send me a message.

[@joeltemplin3570]

@@goneredcar1 I see the video, it has no text in it, and the opening comment with replies below. Maybe a dumb question, but where's the "text section of the video."

[@goneredcar1]

It’s in the public text section here if your looking for the pump information remember it’s different for the several engines I tested on.

[@joeltemplin3570]

@@goneredcar1 OK, thanks. I guess you mean the pump info is in one of the many replies. I'll go re read the replies. It might be helpful to some if that kind of info was included in your opening video statement text after where you wrote " How to upgrade the hydraulic pump to increase the machine speed by 20%"

[@LarchSt]

I like your videos on this... How much is the electric start option, may I ask..., and where are you located. Your accent seems New England, me, I'm originally from Connecticut, Wallingford area. Thanks for all the good tips...

[@tomholman8676]

Hi, great stuff! My hydraulic pump was defective on a new machine with less than 10 minutes of moving bucket around in the air. I found a Salami dealer in Michigan but he didn't have the pump number you listed. He gave me a similar pump. While looking at these pumps I noticed all are above 3200 psi......you said your running at 2400 psi. I was told that the machine has a relief valve that will not allow psi above 2400psi. Is this a true statement or did you do something different?

[@goneredcar1]

Sorry to here about your pump failure. I never changed the pressure on the relief valve, the pumps I selected we’re higher pump volumes not pressures. Before you place a new pump on your trencher I would drain the oil and check for junk in the oil tank, and lines. With a failure like that the junk is everywhere so clean and inspect thoroughly.

[@steveleverett300]

What pump model number?

[@Mooch-hc9de]

Thanks for posting, Could you tell me the information on where to buy the upgraded parts you have in this video. I am not sure where to get them but would like to purchase everything that you would have to buy to upgrade the power by 20%. Thank you very much.

[@goneredcar1]

Use the information below and part number at your local hydraulic dealer to obtain the pump.

[@Mooch-hc9de]

goneredcar1 Thanks for the response, Is it the information in the comment section from the other video where you increased the speed by 35%?

[@barrywray5421]

@@goneredcar1 I cannot find the "information below". Can you share the manufacturer and model # of the pump you ended up using?

[@goneredcar1]

Barry Wray it’s all listed below pump Pompa 614470242

[@jerrystahl5514]

would you please supply the make and model pump that you installed in the final version?

[@ralphwebber6790]

I would like pump size and where to get it

[@normgrimm7631]

Thank you for a great video. I am planning to build a similar back hoe for my JD 316 tractor. Do you know what size hydraulic cylinders are used on the HF unit?

[@goneredcar1]

Sorry, I haven’t any measurements and the machine is in winter storage in a out building which I have no access till spring. I’m sure someone will reply that has their machine available.

[@IRONMAN-4LIFE]

What type of hydrolic fittings are on this machine? Having trouble finding adapters

[@Wakeupandsniffthecoffee]

This lady has the fittings info. I'm trying to find my way through pumps now. I can't seem to source the exact same one. I really need specs on the original to compare to.

[@Wakeupandsniffthecoffee]

kzbin.info/www/bejne/jHq0k4iZfth1rMk

[@goneredcar1]

2400 is the max of the hydraulic system in PSI.

[@hunterjh13]

hello again my friend, i have a couple of questions maybe you can help me with. first whats the number to the company you bought the hydraulic pump ? i am still using the pull 9hp engine it came with.And the other question is the bucket keeps dropping by it self.I added more fluid because i thought that may help but it didn't.The machine has no leaks what so ever and i dont know whats wrong.Maybe this happened to you.I have less then 20 hours on the machine.It digs strong but when i am ready to pick bucket up it keeps dropping and losses alot of power were i cant even pick up dirt to empty out.i did notice if i curl the bucket first then i can raise boom but it takes literally more than half a minute which makes working very frustrating.Any information is greatly appreciated, Thank you very much; Jack

[@goneredcar1]

+hunterjh13 from what you describe it sounds like the valve body may have a problem. Sometimes crud from the tank gets stuck in the spool valves, this occurs from the manufacturing and failed cleaning of it. I have had several folks reported this problem. Many reported junk found in the valve body, one a broken return spring, and damaged Orings. Your second question on the pump as I said in the text portion on this post I purchased local. The pump number in the text is universal and a google of it will locate several locations it can be found. From what I have heard there was A place located in lower Michigan that had it for a good price (no other information on name)

[@Jugheadr2]

Looks like you put some hours upgrading your trencher. Thanks for the video. By the way I spotted a tower in the background, you a ham by any chance?

[@MrAnthonyp28]

Hi and thanks for all your video. I have only 8 hours on the trencher and today as I was digging the machine won't respond, was low on hydraulic oil so I add more, worked a bit then stopped again, but fluid level is good, called tech support but need call back tomorrow, beside the filter on the side by the hydraulic tank there is any other filter that May clogged up and won't let oil go true controls? Maybe you can help, thanks in advance. Tony

[@warrenlancaster9305]

MrAnthonyp28 I am having the same problem. I just started using mine and now it's doing same thing. Have you figured out your issue as of yet?

[@goneredcar1]

This can be narrowed down quickly by removing the return line and placing the end into a clean bucket. Start the machine and see if you have a fast stream of return of oil going into it, if the stream is of low volume it's the pump. If the volume is good it's the valve body's bypass feature stuck open. I have heard that this may occur if debris gets into this area. The bypass section is on the right side of the valve body follow the return hose back to the valve body. If you think it's the pump and need a pump to replace It I have sum to try, contact me if you need more help.

[@warrenlancaster9305]

goneredcar1 Thanks for your response. I have checked just what you have said and at an idle speed I can put my thumb over the return line and stop the flow. Not sure if that is good or bad but I'm hoping its just the pump for now I have to many projects going on now to do a complete upgrade of everything. Maybe over winter I can. Keep up the excellent videos. Any info will help.

[@goneredcar1]

That would be a bad pump, if you find it difficult to locate a pump I do have some. If you ran the pump with no, or low oil it can damage the pump very quickly. If you look into the pump you will find gauging that lead to pressure loss. Make sure you were using the right oil also before installing a new pump. The oil will need to be changed and system flushed of all metal and debris and the filter changed or you may damage the new pump.

[@warrenlancaster9305]

goneredcar1 Again, Thanks for the response and all the great video's. I have located a new pump from Grey Hound, the manufacturer of the back hoe but I have a few more questions for you. 1) How big of a pump do you think I can run with using the factory 9hp engine? 2) You say you have a few pump laying around, so I was wondering how much you were looking to sell them for if your wanted to sell? I was watching the video where you changed out the hydraulic oil filter and housing. Was there a must for that because of your upgrades or because it is hard to locate the filter?

[@jessevalentine615]

could you please send me the information on the pump and the larger lines . I bought a hoe from some on that never got it to work and i can only get it to move right and the bucket to open and close pat way

[@joshuaadams4972]

Hey, I know you posted this a few years ago but after watching your videos over the last year I finally ordered the HF trencher and am waiting on it to come in right now. I needed it to do my septic system and use it as a trencher on some of my construction jobs. went ahead and ordered the upgraded 4.2 GPM pump as well form northern tool. I was just wondering if you have even tried to add some type of counter weight to the back for better support while digging.

[@caribbeanproduceinc8708]

Hi, Did the pump from northern tool work?

[@ralphwebber6790]

Nothermn tool part fit

[@stevesevenlakes4589]

@@ralphwebber6790 What was the model number from Northern Tool? Did it improve speed?

[@stevesevenlakes4589]

Can you share the Northern Tool part number? How is it holding up? Did it improve speed?

[@MrStealth654321]

would a DLH 4 GPM Gear Pump, 3600 psi, 2x2" Mounting, CW, CB1S-F4SA work for this?

[@goneredcar1]

MrStealth654321 4 GPM maybe to large of a flow rate for the 9 Hp standard stock engine. I ran a 3.7 GPM with the 13 Hp engine with good results. As I explain in another video, you start to get into a bottle neck problem because of 1/4” lines.

[@MrStealth654321]

@@goneredcar1 Trying to find one on ebay that will work .. with the 9hp. with out paying a arm and leg for it. If you know of any that will send me the part num Thanks for all the great videos bud and any help.

[@goneredcar1]

MrStealth654321 They run right around $100.00 the part number is in one of the text portion of one of these videos. As I remember the location of the store was in Michigan that’s the best I can remember. I just put in the part number and it came up with the suppler.

[@MrStealth654321]

@@goneredcar1 ok bud thanks.

[@Benpoetter]

Did you put a bigger pressure hose from the pump to the control valve?

[@goneredcar1]

I got the largest one I could use to help with the bottle neck problem.

[@Benpoetter]

@goneredcar1 What size hose did you use and where did you get it? How did you get it to pair up on the valve body?

[@goneredcar1]

@@Benpoetter custom made at a local hydraulic shop. Brought the hoes to the shop and they made a new hose to the size that they thought would work.

[@Benpoetter]

@goneredcar1 What was the hose size that you settled on?

[@Benpoetter]

@goneredcar1 could you run the engine full Throttle if you wanted to or would you start to over heat the hydraulics system.

[@DangerClose13E]

Do you know if there is a "thumb" attachment available that will allow it to grab and pick up brush and small sticks?

[@goneredcar1]

Look on ebay for a 16 inch thumb they run about $170.00 and will work great . I used mine to hold large branches while I cut them.

[@generaldrz]

I'm having problem with my control valve sticking, hf wants $300 for new, I tried to clean have you ever had that problem

[@goneredcar1]

JMTZ I have never had any problem with the control valve. I have changed the oil twice since new. I would have the valve checked at a local hydraulic shop so you can make an informed decision before doing anything.

[@goneredcar1]

It would depend on the soil and many other factors. It would be a rough guess from a week or more. This isn't the machine of choice to do this type of job.

[@goneredcar1]

goneredcar1 3 days ago It comes with 2.7 Deli pump and a 9 hp engine go with a 4.0 or better max at 4.5 depending on the brand there is no standard. The shaft size 1/2 in. and length is 1 1/2 or better will work and 1/8 keyway. The Salami Pompa mod# 614470242 is a good match at 4.1 watch all the videos to help getting tips and tricks. Good luck and its a great little machine.

[@davidpritch718]

What kind of pump should I be looking for? To start out with I'm going to keep the 9hp, but I plan to upgrade to the 13hp and maybe later on the 10hp diesel engine. Can I upgrade my 2.7 Deli pump now to a pump that will work with these other engine types? I found this: www.surpluscenter.com/Brands/MTE-Hydraulics/0-277-cu-in-MTE-D206-5491-Hydraulic-Pump-9-8401-277.axd --- Would this work? Thanks

[@davidpritch718]

I ordered the Salami pump and it should be here in a few days. And I'll be getting the 5/16" feed hose and 3/8" return hose probably today from a local supplier. Did you use the Loctite 567 on the in/out fittings when installing the pump?

[@MrStealth654321]

@@davidpritch718 Hows it working?

[@JC-mn6qn]

Do you still recommend this pump and gpm. Also do you know what psi the stock pump is.

[@TheCominghome]

That's as slow as my standard set up....

[@goneredcar1]

Read down on the text below for the information you requested.

[@jimbauer6822]

One hand issue wow you only have one lever to pull

[@stickwallfarm]

Just did this upgrade and it made a big difference! If anyone is curious, here's the video with details on what parts you need and instructions: kzbin.info/www/bejne/jHq0k4iZfth1rMk

[@James-fr9sq]

Need to know pump to buy. One that is in stock..

[@goneredcar1]

No other filter, but it maybe a stuck control valve. The next thing to check do you have the right hyd oil (32) this is very important. Next because of your low hours are all the hoses right and are the tight. If you are getting air in the system this can cause control failure. Just to let you no the tech support on the trencher is a little lacking on the running of the machine. If you get a little frustrated find a local hydraulic pump and hose shop they maybe more help then HF.

[@charlesbess9473]

The best way that I. Can tell you to check this machine is to find out .if all of the hyd. Cylenders . Are bled . 1 after.the othef. And .check.mfg. ing. Recomendation.s for.that. machine.

[@toantthan]

Hi Gonerdcar1, Thank you for your video. It is very helpful . I am confuse on your information with the Salami Pompa mod# 614470242. Is this pump used for the 35% or 20% speed increase? Base on your updated info, we should use 20% speed increase because of the heating problem. Can you let me know which pump model I needed to buy for this 20% speed increase? Also, do you have any idea on the HF trencher loader lift capacity? Thank you

[@goneredcar1]

Toan Than it's based on the pump volume you choose and the speed in which you run it. What I did is change the engine from 9 hp to 13 hp to gain the use of electric start. With the added hp I reduced the engine speed and increased the pump volume. I had changed the pump several times because the hydraulic shop in my local area supplied me with several pumps to play with. Watch all the videos and you will see you can only get to a point and you are bottle necked by the small 1/4" hoses. Then you start to heat the oil caused by friction by the restrictions of the small hoses. The bottom line is keep the pump volume between 20 to 35 % increase over stock. Sometimes more is not better. When I went to a Diesel engine I slowly started to switch over to 5/16" lines that helped a little. I now have the trencher working just the way I like it and have put many hours on the clock. I was very lucky to fine this local shop that assisted me with there expertise and resources.

[@toantthan]

goneredcar1 Thank you for your feedback. I got what you mean now.

[@timmouritsen7752]

Ś

[@colevrbanic8779]

dude what the heck is that