another question Hyd. seat 1466

[pt756]

Good evening , getting done with the front axle, the seat is the hydraulic one, cushions are okay, the rest of the assembly works well, goes back and forth, what can be done to get the accumulator to work again? I know that there are some fixes, can the part even be bought anymore, it sure rides nice when it did work, thanks,

[acem]

I'm interested in hearing options.

The last time I priced the accumulator it scared me!

[HydroTek]

The accumulator uses nitrogen -- 85 psi if I remember right -- should be marked on the label

Failure is the bladder rupturing inside and filling with oil

Remove the accumulator from the seat and look into the end -- there is a metal "plug" attached to the bladder that will be against the hole when it is inflated

There is a "special" fitting on the closed end to inflate the accumulator -- this fitting pushes the schrader valve to allow nitrogen to enter -- remove the sealing plug and rubber , and you will see the valve

I have used compressor air with success -- and a homemade fitting using a water tank valve from the hardware , and a brass rod cut to the right length

there is a thread on this forum showing a fitting one of the members made (I actually have a factory fitting)

if the accumulator is failed , you can source another one and mount it remotely with a hose -- original size is no longer to be found
I have made an accumulator from a propane torch tank that worked well enough several years ago -- has to be mounted vertically -- basically an expansion tank

[acem]

They show a conversion kit for over $500 that includes an accumulator.

84135554 - Conversion Kit - CASE IH

Here's a pic of a conversion kit from Bates. Their accumulator shows to be a piston type.

I'd like a more economical solution...

[HydroTek]

1 hour ago, acem said:

They show a conversion kit for over $500 that includes an accumulator.

84135554 - Conversion Kit - CASE IH

Here's a pic of a conversion kit from Bates. Their accumulator shows to be a piston type.

I'd like a more economical solution...

This is not my first choice , but is an alternatative
you would need to mount with a hose
G1/2 thread - British straight thread
also the charge tool is a little more involved
used to have the tool on my service truck

https://www.amazon.com/Diaphragm-Accumulator-4786psi-Working-Pressure/dp/B0DMVF4JKW

[HydroTek]

Really the propane tank works pretty well , since you are dealing with a low pressure , and can use air to keep the pressure

Cost is only in the hose and fittings , and a little time

[Doc Egor]

This has been diacussed many, many times....pretty simple fix, no rocket science involved.

Just buy a new accumulator with a schraeder valve from surplus center or wherever that matches or is larger then the capacity listed on the original, mount it to the back of the seat and have a hydraulic hose made up to connect the two.

You'll need to adjust the pressure in the accumulator to suit your needs...bleed it off or inflate with an air compressor as needed. The new accumulator will probably have around 2500 psi and you'll only need around 100 or so depending on operator weight.

 

 

[Diesel Doctor]

It looks like Tobul and Greer also makes these accumulators.

They all do the same thing.

I would think a bit of Yankee Ingenuity can get one of these adapted to the IH seat.

A picture and an email to one of these companies may get a direct replacement a lot cheaper. 

What is the worst they can say, "NO".

The Tobul says right on it, "Repairable Piston Type". That's a clue!

[Matt Kirsch]

My dad got the accumulator working again on the 756's hydraulic seat using the air compressor and a football inflator needle. Decades before "Deflategate." I was small at the time or else I'd be able to tell you what he did.

Now that seat suspension is so worn out and jacked up it's beyond help and hope. I have an aftermarket mechanical suspension that I'm planning on installing but I never know when I'll need the tractor and can't have it sitting in the way with no seat for months on end until I can get around to finishing the project.

[HydroTek]

4 hours ago, Diesel Doctor said:

It looks like Tobul and Greer also makes these accumulators.

They all do the same thing.

I would think a bit of Yankee Ingenuity can get one of these adapted to the IH seat.

A picture and an email to one of these companies may get a direct replacement a lot cheaper. 

What is the worst they can say, "NO".

The original was a Greer

[wild one]

 I would highly recommend keeping the hydraulic seat working. The end cost will be way less than the air ride replacement which you might wish you had never seen. I spent several years trying to keep the hydraulic seat working. Once I mounted a small 12v compressor to pump the seat up, that worked about twice,and then I pretty much sat on a rock hard seat for way too long not wanting to spend the bucks on the accumulator. One day after having a very sore back I decided to go with a big name air ride thinking the cost might save a lot of back pain. The seat was kind of a pain to install, but was very comfortable. If you thought the 86's were hard to get in and out be glad you don't have this seat, its even worse. Trying to run the hydraulics or the pto is no fun either. Backing up to hook or unhook, no fun either with this seat. Just to sit in and ride great. We have had this seat now a couple years and just the other day my son, who had long encouraged me to get the air ride admitted we should have spent whatever to fix the old hydraulic seat.

[234-IA]

I tend to agree with wild one above-  previous owner put a Grammer air seat in our 5088 and in all honesty I'm glad I'm not the one who spent the money on it.  It probably rides somewhat better but I've always felt there is something kind of awkward about it. For what air seats cost the original seat would have suited me just fine, even if I had to put money into it.

[Matt Kirsch]

You can get an air suspension and retain the original seat. K&M sells them that way. There's no need for the giant throne on top of the suspension.

[acem]

Love that pic.

I have a tractor with an aftermarket mechanical suspension. I throughly dislike it. Was ok when new but would go all the way to the top when you got up. Now it needs work and parts are unavailable. It might be fine in a combine, truck or something else but is a very poor substitute for the factory suspension in a tractor.

[acem]

20 hours ago, HydroTek said:

This is not my first choice , but is an alternatative
you would need to mount with a hose
G1/2 thread - British straight thread
also the charge tool is a little more involved
used to have the tool on my service truck

https://www.amazon.com/Diaphragm-Accumulator-4786psi-Working-Pressure/dp/B0DMVF4JKW

Can you explain your opinion.

Not doubting you. Just curious.

[brahamfireman]

21 hours ago, wild one said:

 I would highly recommend keeping the hydraulic seat working. The end cost will be way less than the air ride replacement which you might wish you had never seen. I spent several years trying to keep the hydraulic seat working. Once I mounted a small 12v compressor to pump the seat up, that worked about twice,and then I pretty much sat on a rock hard seat for way too long not wanting to spend the bucks on the accumulator. One day after having a very sore back I decided to go with a big name air ride thinking the cost might save a lot of back pain. The seat was kind of a pain to install, but was very comfortable. If you thought the 86's were hard to get in and out be glad you don't have this seat, its even worse. Trying to run the hydraulics or the pto is no fun either. Backing up to hook or unhook, no fun either with this seat. Just to sit in and ride great. We have had this seat now a couple years and just the other day my son, who had long encouraged me to get the air ride admitted we should have spent whatever to fix the old hydraulic seat.

Sell the hydralic seat base for big bucks to guys that are restoring 12's and 1456's. Then use that money to put an air ride under the original seat and back. 

Or sell the hydralic seat and put an original rubber cushion seat on for way less.

[pt756]

Question, we tried yesterday to put nitrogen in it, there was a small leak you could here, however when we took the plug out there was no oil in the rear of the accumulator , was told a good sign, guy said why not rig it up and put some air in it when you plan to use it, he came from out east and did that with a 1456, he looked at the size of the accumulator and thinks his hydraulic supplier might be able to come up with something, thanks for help

[Dmnstr8r]

 

[pt756]

repair guy had bought 15 aftermarket spring loaded seats, it has armrests and does slide back and forth easily, actually the rails look better than the ones on the hyd. seat, seat cushion not so good, just looking at it was trying to figure out how to mount the tombstone seat on it, dont know how long it would last as it is all springs and a shock absorber , tried it out vice grip to a steel bench goes up and down, maybe thats what we will have ot be happy with, just got a hard time spending the 500 plus for the accumulator, did find out from case it is available,