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1530 JD Hydroulics won't work

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XL cid A

Member
I got a 1530 JD that the Hydroulics quit working on after it runs
for awhile. I cleaned the transmission screen and replaced the
filter a long with changing the fluid. I got to checking and the
Hydroulics work as long as the resavor if full but after working
the lift several times or the loader it drains it. Does that
indicate a bad transmission pump? Or how do you tell if its
bad? I have a manual and it says to use a flow meater to
check it but I don't have one or can I find one close. Is there
any other way to check it without the gauge? I have a pressure
gauge if I can use it to check the pump. Thanks for any help or
advice !!
 

What type valve controls the loader(scv or ind 2 spool)? An easy place to check for an internal leak is by looking in hyd filler hole on the rear for spraying oil with the engine running & 3 pt control; lever in the raised position. Does tractor have the option of hyd hi-lo or ind hyd pto?????
 
It has a 2 spool that is mounted on the loader . I don't think the
rock shaft is my proublem it and everything else work fine as
long as the resivore tank ( the one in front of the radiator )
stays full. The proublem is after using hydrolics for a few
minutes it emptys the tank like the transmission pump won't
keep up or keep it filled when you use it. I can let it set running
and looking down in the tank I can watch it fill up but it seems
to be a bit slow about doing that.
 
Disconnect loader valve return hose and aim it at the hyd filler hole. Crank tractor with both levers in neutral and see that "no oil" flows out the hose. Rockshaft can operate correctly and still be leaking cauasing problems.

Does your tractor have ind pto or hyd hi-lo or reverser????????????
 
Nope no reverser or hi and low hyd or PTO. I assume your
talking about the pto that have the handle in front of the gear
shiters that works off the hydrolics? It doesn't have that.
 
Maybe time to consider a flow test through the pipe from the trans pump to the front pump inlet.
Something sounds familiar about this problem?
 
(quoted from post at 14:17:24 08/28/13) Maybe time to consider a flow test through the pipe from the trans pump to the front pump inlet.
Something sounds familiar about this problem?
Click to expand...

b&d
I trying to remember(without the aid of a service manual) how to attach a flow meter to the trans pump of a utility tractor and I can't remember. Do you know how/where to attach a flow meter?
 
(quoted from post at 13:53:49 08/28/13) Nope no reverser or hi and low hyd or PTO. I assume your
talking about the pto that have the handle in front of the gear
shiters that works off the hydrolics? It doesn't have that.
Click to expand...

Yes what you outlined is what I was referring to. Get a laser thermometer and look for excessively hot hyd components.
 
Where can I get a flow meter then? Unless there is something going on with a valve somewhere I would say the Trans pump is out but it would be nice to be abele to check it somewhat to be sure. I have a service manual but no flow meter.
 
I don't think it works long enough to get it hot? It will only work
for maybe 5 Minuits or less just depending on how long it
takes to empty the tank!
 

Check hyd filter relief valve(parts key 24) to see if it's not stuck open.
mvphoto20215.gif
 
I already have its fine I even drove the roll pin out and cleaned
everything good to be sure there wasn't anything maybe
sticking it open but it didn't change anything .
 
Something else I forgot to mention. When I drained the
hydrolic fluid there was a check valve that fell out and after
checking it came out of the trainsmission line that goes to the
pump. Somewhere in its life somebody put 2 new lines on it
and I assume that it fell in there bucket and they just poured it
back in. I first thought that was the proublem but it didn't
change anything after I put it back where it goes. Could it
have damaged the pump ( transmission pump ) with it not
being in there over a long period of time. Also those pumps
there's not much to rebuild other than bushings , seals , and
couple of gears are there? Probably just as we'll off to replace
the whole pump if that's the proublem??
 
Just disconnect the inlet line to the front pump and add a length of hose over to 5 gallon pail.
iirc the trans pump gross flow is approx 6gpm at rated speed. Flow to front pump will be minus transmission lubrication , pto clutch or brake is equipped . And if the high-low is valved in.
Should flow 3-5gpm to front pump/cooler/storage tank.
There is a divert valve at the filter . Any thing stuck there?
 
(quoted from post at 17:34:47 08/28/13) Just disconnect the inlet line to the front pump and add a length of hose over to 5 gallon pail.
Click to expand...

In all my JD dealer time I don't remember reading to check trans pump the way you describe. I bet it's fun doing it that way as there's very little room up there by the frt pump.!!!!!!!!!!!!!
 
Emmmm yes.I should have said test the flow at the coupling
where the check valve belongs.
I hope the check valve isn"t in the supply line backwards or in
the line that flows back to the transmission sump.
 
(quoted from post at 18:53:12 08/28/13) Emmmm yes.I should have said test the flow at the coupling
where the check valve belongs.
I hope the check valve isn"t in the supply line backwards or in
the line that flows back to the transmission sump.
Click to expand...

How are you planning to get that line(parts key #1) unplugged from the clutch housing and a flow rater plugging into clutch housing? Could flow be tested at one of the front reservoir tubes(hoses)?
mvphoto20218.gif
 
I worked on my cousins 1530 that would run out of oil after using the loader or steering very quickly or using the hydraulics that would use the oil up in the front reservoir. It wouldn't refill it fast enough. His had a couple cracked steel tubes in the transmission that were leaking real bad. I think he may have had independent pto. Since you don't have that or high/low, or reverser, there should be no lines going to your transmission cover, I don't think. You should be able to take that cover off, start the tractor, and observe for oil spraying around. You could also look in the rear oil fill with it running to see if there is a mist of oil which will tell you that the rockshaft needs rebuilding too.
 
(quoted from post at 17:34:47 08/28/13) Just disconnect the inlet line to the front pump and add a length of hose over to 5 gallon pail.
Click to expand...


Disconnecting inlet line for trans pump supply line short of splitting tractor on a JD utility built from '65 to '93 is a long way from a "walk in the park" :wink:
 
(quoted from post at 10:19:19 09/01/13) If spring is Broken in PRESSURE CONTROL VALVE could that not be a problem ?
Click to expand...

I think that isn't the problem. The pressure control valve on a utility tractor is designed to give priority pressure to the steering. If spring is broken then the oil should be readily available to "all hyd functions" that utilize high pressure(if present)
 
Hi
working on an 1830 at the moment. very similar problems to what you got. this one has high low and independent 540/ 1000 pto. so has a maze of pipes and valves. Nearest I came to is the trans pump is shot. we got her apart, cant find any split lines or obviouse stuff checking round.

But we did find, where the trans pump drive goes through the larger pump gear. The shaft has worn into the gear splines quite a bit, my theory is that the gear clearance is too much now, and it don't flow enough because of it and tooth wear.
This tractor rattled pretty good in the middle when stopping the motor too, which could be that gear and another bearing in front of the pump.
A jobber pump is $500 Deere is near a $1000 and that drive shaft/ gear assembly is $2000, I find out when parts guy finished choking up here in Canada.
This tractor is 1 owner 17,000 hours confirmed!. How many on this one.
This one Im doing is probably getting to be worn out, and the next repair could be the end with the parts prices. Don't want to tell the guy this, He thinks more of the tractor than his brother some days.
Good luck and hope it's a cheap fix.
Regards Robert
 
Here's the price from an A&I oil pump & shafts. It might be cheaper to get the parts from this side of the border.
A-AR96662 Oil Pump ADD 421.46 USD

Which pump shaft do you need? I'm thinking you need parts key#2
parts key #2 R39254 Shaft ADD 748.58 USD
parts key # 12 AR39127 Shaft ADD 792.25 USD
mvphoto20304.gif
 
(quoted from post at 10:36:58 09/01/13)
(quoted from post at 10:19:19 09/01/13) If spring is Broken in PRESSURE CONTROL VALVE could that not be a problem ?
Click to expand...

I think that isn't the problem. The pressure control valve on a utility tractor is designed to give priority pressure to the steering. If spring is broken then the oil should be readily available to "all hyd functions" that utilize high pressure(if present)
Click to expand...

Isn't there two oil control valves in the transmission? The 145psi relief valve that is accessible on the side of the transmission case which sends "excess" oil to the front pump? 2nd valve is the divert if filter is plugged unit at the trans oil filter?
 
(quoted from post at 11:14:21 09/02/13)
Isn't there two oil control valves in the transmission? The 145psi relief valve that is accessible on the side of the transmission case which sends "excess" oil to the front pump? 2nd valve is the divert if filter is plugged unit at the trans oil filter?
Click to expand...

Parts keys #24-27 are the filter relief valve for low pressure(150-165 psi)
mvphoto20310.gif


This is the pressure control valve(parts key #16). It closes at about 1700 psi to ensure PRIORITY hyd oil for steering.
mvphoto20311.gif

Then there's another trans pump pressure control valve in the shift cover on tractors with hyd pto & hi-lo.
 
Doesn't items #14-17 open if there is to much trans oil filter back pressure. To allow oil to bypass around the filter and divert to transmission bearing lubrication?
 

b&d
Without the aid of a JD tractor utility service manual I can't answer your question. I know while employed at a JD dealer I never saw that ball(parts key #14-17 in 1st photo) removed for inspection. IIRC parts keys #24-27 are the hyd filter relief components.

I'm sure you have a service manual for your 1630 "donated by JD in exchange for publishing their 800 phone # so often" so how about you look it up & report back??
 
iirc the spring and relief closest to the filter is the bypass and divert if the filter is plugged.
The ball and spring near the front of the trans diverts any "extra" oil to the front pump after the transmission reaches 145psi.
Any chance the two different trans oil pumps will swap? The high volume pump for the high/low will possibly fit in the tractor without the high/low shift?
The beat up tractor I purchased from my Uncle is a 1640.
What ever is going on with that 1530. It appears there is very little flow in the pipe between the transmission and the front pump.
It's either a low flow trans pump, some sort of a leak in the transmission or a valve blocking/diverting flow.
 
Hi
How do you find those parts through A&1 in the states. None of the shafts are available on the site I use in Canada?, And they want about 6 weeks to get a pump it is out of stock here!

12 looks like the shaft I might need. gonna try the new pump on the old one. Then see how it fits, compared to the old pump gear. The shaft in 3 is getting all new sealing rings and put back in.


I think this tractors gonna take retirement and go grass cutting at his house, when the guy sells his cattle, as long as the 3 point works and steers at the same time. I don't think he is worried about spending more major money on it, after this repair.
Unless I put new fenders on and he lets me paint it up. That came up the last twice he was here.
Regards Robert
 
(quoted from post at 22:40:13 09/02/13) Hi
How do you find those parts through A&1 in the states. None of the shafts are available on the site I use in Canada?, And they want about 6 weeks to get a pump it is out of stock here!
Click to expand...

Robert
When I'm signed in on JD's parts website I just insert A- in front of the part number to get the price on A&I parts if they're available.

Do you know what the function is of the ball(parts key #17)in the 1st photo of this thread??
 
Hi
I don't right now but if the proper jd 1830 shop manual covers it. I will be able to tell you in a dayor so. when I catch up with all the other break downs. And I get time to pick it and the pump up.

I got the I&T book right now, which is only slightly better than useless some days.
Thanks for the parts info, our JD dealer did that for the pump but not the shaft, when he told me $2000. Maybe we can't get that up here either.

New Holland told me yesterday they deal in sparex parts, what do they have for parts on these older Deeres, have you used them?
Regards Robert
 

I don't repair much anymore so I can't answer about Sparex but it seems I seen JD tech's mention Sparex parts. Do Canadian JD dealers have access to A&I parts?
 
Yes , AI parts are as common as snow,Crown Royal and
Winnie the Pooh on the north side of the border.
I would really like to know what is going on with this tractor.
 
I've not been able to work on it the last few days but getting fired back up now. I had a 2155 that acted the same way a few years ago but I don't think the resivore would empty when it done it. It turned out to b a little piece of metal shaving ( from the brakes that were destroyed ) in the stroke control valve hanging it open. Would that cause it not to keep the resivore filled on this one? Or is that moor related to the pump back ?
 
(quoted from post at 08:52:01 09/04/13) Yes , AI parts are as common as snow,Crown Royal and
Winnie the Pooh on the north side of the border.
I would really like to know what is going on with this tractor.
Click to expand...

I'll bet you a bottle of Crown Royal the 1530's hyd problem it's not the ball pars key #17
 
(quoted from post at 10:48:20 09/04/13) Thought you had the good sense to avoid alcohol?
Click to expand...

I drink a little alcohol(beer) and when I win the bet between you & I (If you'll acknowledge the bet) I dearly love to SIP ON YOUR CROWN ROYAL :lol:
 
There is a destroker screw for the front pump for under $20 if not already equipped .
With the front pump in service but no hydraulic loads or functions being used. Does the reservoir tank fill and flow the extra oil back to the transmission sump? How long does it take to fill the reservoir tank?
With the front pump de-stroked. How long does it take to fill the front reservoir tank?
 
Reservoir and hydraulic cooler are storage if the front pump has a brief high demand load. Front pump does not move oil if there is no high pressure demand.
The transmission pump has about 1/3 the flow of the front pump. That is why high flow loads such as loaders, some log splitters, backhoes and hydraulic motors. They require return oil back into a ported filter cover.
Returning oil from a high demand load direct to the transmission sump will starve the front pump.
That transmission pump even when new probably would not flow more than 4-5 gpm . Way short of the 13gpm or 25gpm front pump are capable of if in full stroke.
 
It doesn't have the destroke valve. Wright now with it running it will fill the tank not using anything but I took the plug out and watched to see how much was going in the tank and it'll take 2 to 3 minuits for it to fill up but can I judge that with it not having the destroke valve? I'm going to try to determine how much the Trans pump is putting out. Ill post back with the results tomarrow!!
 
Until you destroke the front pump. There is no way to tell much much the trans pump is pushing.
The front pump has priority for the oil from the transmission. What is left after the front pump flows to the cooler and reservoir.
That front pump maybe pumping to a phantom leak even when no hydraulic functions are activated.
 
buickanddeer
Did you ever look in your 1640 service manual to determine the function of the ball(parts key #17) you mentioned that you thought was a pressure control valve??????? You do have a service manual for your tractor don't you????
 
I took the top of the transmission off to have a look to tell if there might be some kind of leak but I'm not sure. There is some oil spraying up but I can't tell if its just slinging off of the gears or what. I have noticed once I push the clutch in and the Trans pump stops everything will stop working as soon as I hit the loader lever or the lift leaver one time and it over but can release the clutch and it tries to work a little while but I still starving for oil. What does this mean or is this not relevant to the proublem?
 
(quoted from post at 13:07:24 09/09/13) I took the top of the transmission off to have a look to tell if there might be some kind of leak but I'm not sure. There is some oil spraying up but I can't tell if its just slinging off of the gears or what.
Click to expand...

The spraying oil you refer to isn't coming out of a hole(where parts key #9 fits) on the RH side of trans case that supplies oil to the rockshaft valve is it??????????
mvphoto20463.gif
 
No. I didn't take the rock shaft off I just took the shifter cover
off. The gear right behind the Trans pump is where it's coming
from. It might be getting slung up by the gears but can't really
tell. But isn't it soposed to pick up oil straight from the case
when the pump is disengaged? What would cause that
assuming there isn't a leak.
 
Drain the transmission sump level down so that the suction screen is just nicely covered and doesn't draw air.
Now look for oil leaks from lines, fitting and between gasket surfaces.
Are any other the tranmisison divert valves at either the filter or txjim's favourite surge valve passing oil?
Is the trans pump making enough pressure to lift the valve to 1st stage for pto/high flow if such equiped tractors at 130psi. Then 2nd stage at 150psi to send oil to the front pump?

Not to be rude here, but do you or any helpers really know what you are looking for ? There is no fault in calling in a pro. The downed tractor is loosing $$$ by not working to earn it's keep.
 
(quoted from post at 17:23:39 09/09/13)
Are any other the tranmisison divert valves at either the filter or txjim's favourite surge valve passing oil?
.
Click to expand...

Glen
It's not my favorite valve. I stated when YOU AKA b&d mentioned the valve that I'd never seen it cause a hyd failure. BTW did your wife relieve you from doing the dish & clothes washing so you can play on her computer????????? :lol:
 
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