Not exactly sure how to join this forum so hope this works. Just bought a JD 300, a loader of a wrecked 300 and a JD 165 3 PTH backhoe. Now I have to figure out how to hook up all of the hydraulics. If I could get a few pics of a loader on a 300 with a focus on the hydraulics that would be a great help. Then I will start to dig into the backhoe.
- Thread starter ktdidur
- Start date
My backhoe (Woods 1050) is entirely self contained. Has all the hydraulics and oil reservoir onboard. Pump attaches to PTO and clamps to drawbar. I would be concerned as to whether tractor has enough hydraulic capacity to run a hoe. Also, the fluid capacity. Mine takes about 10 gallons. Assume that may be partially for heat dissipation. I find that my hoe can jostle my tractor around pretty good. A (MF 180) which is a pretty heavy midsize tractor. Do your research.
Thanks Ray. The JD 300 is designed to have a backhoe but the one I have obviously never had one installed. Comes with a big hydraulic pump. Really would love to get some pics or a schematic of the connections from the factory. I have the TSM and the operators manual for the tractor and the backhoe but they lack detail. BTW, is your hoe 3 PTH?
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
ktdidur
Welcome to YT
What type tech manual do you have? TM from JD should contain hyd schematic.
Are you aware the model JD 300 has closed center hydraulics & the 165 BH will need to have closed center valve for tractor hyd's to operate correctly? As you stated 300 has sufficient hyd oil capacity to operate a BH.
Yes, three point attachment. Top link is fixed and a real bugger to get lined up to slide pin in. I end up connecting lower arms, and hydraulic pump. Then use hydraulics of tractor and BH to jockey around to get top link in exactly the right position. Tractor is CAT 2, and seems to handle BH OK, but BH is awfully heavy. Can push tractor around pretty easily. I would probably do better if I had a front end loader to anchor the tractor. Have a 24 inch bucket and can get a pretty good bite. Moves a lot of dirt pretty fast.
Nice finds...
The 300 is a great machine. We've had ours since '71 I think. (before I was on the planet)
No hoe on ours. Never had it from the factory. Hydraulics have been bulletproof, apart from changing out the hoses finally a few years ago. I'm not going to be near it for a month or so to check the manuals. I expect you'll have answers by then.
Good luck with the combination project.
The 300 is a great machine. We've had ours since '71 I think. (before I was on the planet)
No hoe on ours. Never had it from the factory. Hydraulics have been bulletproof, apart from changing out the hoses finally a few years ago. I'm not going to be near it for a month or so to check the manuals. I expect you'll have answers by then.
Good luck with the combination project.
I do have the TM. And I had figured out that I was going to need to make a change to the valve on the BH. The schematic does shonw
where to connect the loader supply however it show an optional return and I am not sure where it connects. Doesn't make sense to
me that it could be optional either. Also it doesn't seem to address the hydraulic connections for the BH. Hoping someone out
there could share a few pics.
where to connect the loader supply however it show an optional return and I am not sure where it connects. Doesn't make sense to
me that it could be optional either. Also it doesn't seem to address the hydraulic connections for the BH. Hoping someone out
there could share a few pics.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
Hyd pressure for BH should be attached at orifice encircled in green on valve in photo below. This pressure control valve is located oh lower RH side of trans case close to hyd filter. Does your tractor have 1 or 2 hyd filters? IIRC tractors set up for factory BH has 2nd filter that BH hyd oil is returned to.
So I have determined that I need a different hydraulic pressure control valve in order to have a BH and a loader. Mine does not have the ports. Does anyone know if I can just put the correct one on as a direct replacement or not? Mine is a R39273. No external ports available. The one with the ports is a R39323 or a T120268. New from dealer is over $1600!!!! Can get one out of Alabama for $350 USD plus shipping but want to make sure I can use it.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
I posted the photo of the PCV because you asked where factory BH hyd pressure connection was located.
If it was my tractor I'd just tee into line that supplies pressure oil to PCV or the scv & save the $350. Teeing into SCV pressure supply line would be the easiest & return oil to ported hyd filter cover.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
You're welcome
Closed center hyd valves must be connected(teed) into system in parallel while open center valve need to be connected in series.
Getting back to this after a couple of days. This is the big week. Backhoe and loader go on! Just wondering if I am on the right page with where I am hoping to plumb them in. I see that my pressure control valve has cap screw #18. Pretty sure that is a pressure port. Planning to plumb a Tee into that port for pressure to both the backhoe and loader SCV. The I am hoping to plumb a Tee into a plug above the transmission filter for the return from both. Any suggestions?
Jim.ME
Well-known Member
- Location
- central ME
(quoted from post at 18:39:53 12/27/20) Getting back to this after a couple of days. This is the big week. Backhoe and loader go on! Just wondering if I am on the right page with where I am hoping to plumb them in. I see that my pressure control valve has cap screw #18. Pretty sure that is a pressure port. Planning to plumb a Tee into that port for pressure to both the backhoe and loader SCV. The I am hoping to plumb a Tee into a plug above the transmission filter for the return from both. Any suggestions?
Check your manual further. I believe you will find the plug you want to use for a return port is actually the "cap" for the transmission oil filter by pass valve, so it can't be used for a return port.
Jim.ME
Well-known Member
- Location
- central ME
You should get a ported transmission filter cover to return oil to. the port at the bottom of the cover is used for the return. The parts you need are Item Key # 15 on the page in this link: https://partscatalog.deere.com/jdrc/sidebyside/equipment/73470/referrer/navigation/pgId/171709 .
It looks like the parts need to be ordered individually now, the dealer will tell you that for sure. You have to swap the internal parts (4, 5, 6, 7, 8, 10, and 11, if yours has 11) from your existing housing into the new housing, unless you purchase those as well.
It looks like the parts need to be ordered individually now, the dealer will tell you that for sure. You have to swap the internal parts (4, 5, 6, 7, 8, 10, and 11, if yours has 11) from your existing housing into the new housing, unless you purchase those as well.
Jim.ME
Well-known Member
- Location
- central ME
Here is a picture of a farm loader hook up, so yes, that is the pressure port. The fittings are listed in the catalog for the 148 farm loader.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
JD offers a more reasonable priced ported filter cover than T31170.
The cheaper part # is L55982. See photo below for price comparison.
Jim.ME
Well-known Member
- Location
- central ME
(quoted from post at 06:50:13 12/28/20)
JD offers a more reasonable priced ported filter cover than T31170.
The cheaper part # is L55982. See photo below for price comparison.
Thanks Jim. I wonder what the difference in the two covers is. The L55982 shows as a sub in the on line catalogs for the T31170 for some units, but not others, like the 300 or the 2030. I think the T31170 cover in the picture on the 2030 was about $125 at that time.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
I think the cheaper cover is pressed steel & higher price is a form of cast steel/iron. If cheaper subs in 1 application I'm guessing it will fit in most other applications. My guess difference in the 2 part # is the 2 different factory(Dubuque vs Mannheim) engineers.
Thanks for all the help. Ordered the ported cover today and will have it tomorrow. $138.00 CAD so not too bad. Hoping to get fittings from an aftermarket hydraulic shop to Tee into both supply and return and add 4 Pioneer quick connect female ports. Then I can remove the backhoe and/or loader as needed. Will post pics later in the week of all goes well. Got a nice big heated shop to work in with all the tools and equipment needed. -15 C up here.
Need help. Put my BH on today. Plumbed pressure side of SCV to port on pressure control valve. Got a ported cover for the transmission filter and plumbed the return into it. Also put quick connects on both for the loader. BH was very sluggish at the start but got a bit better as I worked it. Seems to have lots of power in one direction for each of the cylinders but not the other. In fact main cylinder will not pull it full up. Checked oil level in tranny which was low so topped it up and seems to be some better but not as it should be. Only concern I have is that the transmission filter cover didn't seem to fully engage in the housing. Not sure what effect that could have. Any thoughts anybody?
Jim.ME
Well-known Member
- Location
- central ME
If the backhoe control valve is open center it needs to be converted to closed center and if it has a pressure relief valve that needs to be set at or above the tractor's pressure relief valve setting.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
Simple test:
Attach BH control valve inlet(pressure) hyd line to 300 hyd system as shown in Jim.ME photo. Leave BH(return line) disconnected without a hyd fitting attached aimed into 300 hyd filler orifice. With BH valve control levers in neutral positions. Start 300 engine & no oil should exit the open BH valve return hose. If oil exits open hose CC plug inner seal is absent/leaking or BH control valve pressure relief valve is set lower than 2250 psi.
Jim.ME
Well-known Member
- Location
- central ME
Do the check Tx Jim recommends. "Normally, usually, always" are words that have bit people in the butt before. Did you actually see it operating on a closed center tractor prior to purchasing it?
Checked it out as suggested and definitely open center. Looks like to change it to closed center it requires a closed center plug. Having trouble finding a part number! Aftermarket an option?
From what I can see without removing it the plug is threaded into the end plate and seats inside. Again its a 165 backhoe.
Jim.ME
Well-known Member
- Location
- central ME
Tx Jim or someone may have a definite answer for you, but I would say you will need parts direct from John Deere. I believe they build their own valves for many of these. There are two 165 backhoes shown one for a tractor and one for a skid steer. I expect yours is for a tractor but have no way of telling that for certain at this point. I only took a quick look, but the plugs appear to be different. Here is a link to the page on the on line parts books where you can open them both and compare your valve to be certain which you have.
https://partscatalog.deere.com/jdrc/search/type/model/term/165
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
Closed center plug for factory 165 BH valve is GT6977(key 32) While viewing 165 parts schematic I located 2 adjustable relief valves. These relief valves need to be set not to open before 2250 psi or probably closed completely. My knowledge of BH hyd's is very limited.
Dug and dug last night and finally found a valid PN for the center plug. Looks like it is also used on some logging equipment. Might
be obsolete but available from some US suppliers. I will pull the plug tomorrow and see what is in there and call JD to see if the PN is available. PN I found is AT56458. Thanks gentlemen! I will let you know how it goes as a thread that has a resolution is always the most informative.
be obsolete but available from some US suppliers. I will pull the plug tomorrow and see what is in there and call JD to see if the PN is available. PN I found is AT56458. Thanks gentlemen! I will let you know how it goes as a thread that has a resolution is always the most informative.
Jim.ME
Well-known Member
- Location
- central ME
Did you remove the plug from your valve body and look at it to see which plug in the parts book it looks like? It might be just a blown seal/O-ring.
Did you see Tx Jim's last reply on the other post? (https://forums.yesterdaystractors.com/viewtopic.php?t=1474029 )
There seems to be some part number issues here. I suggest you talk directly with your JD dealer to start with. When I search AT56458 on the Ag parts site I get:
On the Construction and Forestry dealer's site I get:
T35994 Plug subs to AT53853 valve kit in the searching I did.
Talk with a dealer, and see what they come up with. It might cost more if you order through them; but you have a better chance of returning it, or getting their help, even if it costs a bit more than you likely will from an aftermarket vendor. JMHO
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy