bucket cylinders double acting paulson loader

I disassembled the bucket cylinders on my Paulson loader.Rod with seals on it was extremely hard to get out of the cylinder. Had to put a bar in the eye of the rod and hammer to remove the piston with seals. Multiple type of chevron seals, o rings.
The nut at the end of the rod: Had to use a 3/4 inch flex bar, 1.5 inch 3/4 socket and a piece of pipe on the end or flex bar. Secured the rod by putting a crowbar through the eye end ofrod and putting my tractor on one end of the crowbar. Nuts were pin punched to prevent them from coming loose. Wanted to know, Is it really necessary to have the nuts this tight? What about tightening and use locktite. I think the cylinders have been together since they were put on the loader.

(quoted from post at 01:18:24 04/16/14) I disassembled the bucket cylinders on my Paulson loader.Rod with seals on it was extremely hard to get out of the cylinder. Had to put a bar in the eye of the rod and hammer to remove the piston with seals. Multiple type of chevron seals, o rings.
The nut at the end of the rod: Had to use a 3/4 inch flex bar, 1.5 inch 3/4 socket and a piece of pipe on the end or flex bar. Secured the rod by putting a crowbar through the eye end ofrod and putting my tractor on one end of the crowbar. Nuts were pin punched to prevent them from coming loose. Wanted to know, Is it really necessary to have the nuts this tight? What about tightening and use locktite. I think the cylinders have been together since they were put on the loader.

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The piston seals are not the the same as the rod end vee-packing type you installed on the other cylinders. Piston seals come in all sorts of configurations - do you have part numbers and a source of supply for the ones in that cylinder?

TOH

TOH,
I was hoping you would respond. Contacted Tavis metal in Rogers Minnesota.Tavis Metal Fab. purchased the Paulson Loader Company. They no longer make the cylinders but do have some parts. Their company is thriving and they make fabricated parts for companies such as Caterpillar Tractor Company. Talked with Steve who worked on the assembly of Paulson cylinders.The lift cylinders were made from schedule 40 pipe and the piston rods are hollow steel pipe which was machine finished. The rods in the bucket cylinders are solid steel. He told me they no longer have the seal sets.The reason they no longer have the seal sets as they had to order things in groups of 200. Stopped making cylinders for loaders when companies such as John Deere started making loaders. No longer any need for Paulson loaders. Decided to leave the cylinders with Skagit Hydraulics in Burlington, Wa I asked Steve how they assembled the cylinders you gave me advice on assembling. They used a 3 foot pipe wrench, Teflon tape and according to Steve about 600 pounds of torque. With your background I know you would understand a principle of physics: A 200 pound man putting 200 pounds of pressure over 3 feet would equal 600 pounds of pressure or ft. lbs of torque.
The bucket started chattering when I operated it. When I took it apart had to put a crowbar in the eye of the cylinder end and hammer each side of the bar to remove the rod with seals. Do seals such as in the picture swell over time?Exploded diagram of cylinder. Included a picture of my ford jubilee with the Paulson loader. Cylinders looked good on the inside. I would really like your opinion as to why the rods with seals would become so tight in the cylinders.

(quoted from post at 10:17:50 04/16/14) TOH,
I was hoping you would respond. Contacted Tavis metal in Rogers Minnesota.Tavis Metal Fab. purchased the Paulson Loader Company. They no longer make the cylinders but do have some parts. Their company is thriving and they make fabricated parts for companies such as Caterpillar Tractor Company. Talked with Steve who worked on the assembly of Paulson cylinders.The lift cylinders were made from schedule 40 pipe and the piston rods are hollow steel pipe which was machine finished. The rods in the bucket cylinders are solid steel. He told me they no longer have the seal sets.The reason they no longer have the seal sets as they had to order things in groups of 200. Stopped making cylinders for loaders when companies such as John Deere started making loaders. No longer any need for Paulson loaders. Decided to leave the cylinders with Skagit Hydraulics in Burlington, Wa I asked Steve how they assembled the cylinders you gave me advice on assembling. They used a 3 foot pipe wrench, Teflon tape and according to Steve about 600 pounds of torque. With your background I know you would understand a principle of physics: A 200 pound man putting 200 pounds of pressure over 3 feet would equal 600 pounds of pressure or ft. lbs of torque.
The bucket started chattering when I operated it. When I took it apart had to put a crowbar in the eye of the cylinder end and hammer each side of the bar to remove the rod with seals. Do seals such as in the picture swell over time?Exploded diagram of cylinder. Included a picture of my ford jubilee with the Paulson loader. Cylinders looked good on the inside. I would really like your opinion as to why the rods with seals would become so tight in the cylinders.

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I have no explanation for the piston seals being too tight. Frankly cylinders are pretty generic and given the repair parts info you just posted I'd simply replace them with new ones.

It looks like a nice loader for an N. I and I suspect a number of others would like to see some closer shots of the details on the loader:

1) Pump drive and mount
2) Front and rear attachment points
3) Control valve and reservoir


TOH

TOH,
Thank you for the interest in my tractor. I am in Seattle now and the tractor is on Orcas island. I will look through pictures and send you what I have. I have the part numbers for many things. The original gresem valve was leaking. Had cross hydraulic valve company build one for me. cross valve number: BA231AAG3EAO A hydraulic place in Spokane Wa. knew what the original gresen valve was. They were able to order a new valve assembly from Cross valve. I had to remove the front end of the tractor and attach a shaft connector to the front crankshaft pulley. This was purchased from our host. Also purchased the shaft and new connector for the Cessna pump which also was purchased from our host yesterdays tractors. We build a mount for the pump on the front of the tractor.Pump also has a guard which wasn't on the tractor in the picture.

(quoted from post at 10:52:56 04/16/14) TOH,
Thank you for the interest in my tractor. I am in Seattle now and the tractor is on Orcas island. I will look through pictures and send you what I have. I have the part numbers for many things. The original gresem valve was leaking. Had cross hydraulic valve company build one for me. cross valve number: BA231AAG3EAO A hydraulic place in Spokane Wa. knew what the original gresen valve was. They were able to order a new valve assembly from Cross valve. I had to remove the front end of the tractor and attach a shaft connector to the front crankshaft pulley. This was purchased from our host. Also purchased the shaft and new connector for the Cessna pump which also was purchased from our host yesterdays tractors. We build a mount for the pump on the front of the tractor.Pump also has a guard which wasn't on the tractor in the picture.

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Paulson documentation is scarce. Even before they went out of business there was very little in the way of details on their website. And unfortunately I did not have the foresight to make copies of what was there. If you have any printed material that came with the loader I'd be interested in copies of it as well as the pictures.

That is a nice loader but there are just too many people making "universal fit" loaders for small utility tractors these days for Paulson to survive.

TOH

TOH,
I purchased the hub and shaft from Farm Land Tractor in Oregon. Thought I purchased them from Yesterdays Tractors. Part numbers are Tisco:Two part numbers: 195454 and 290421 Fit perfectly. Did not have to replace the front pulley on the jubilee. 4 bolts. Had to remove the front end of the tractor to install the hub. There was a plate front end of my jubilee. Drilled the plate to install pump bracket. This part of the job was the most time consuming. Wish I had actual pictures. Will take pictures next time I am on the island and sent them to you. Total package of parts from farmland was $140.00

TOH,
Everything I have on the loader came from Tavis Metal Fab. in Rogers Minnesota. Talked with a
Steve who worked on the assembly and production of Paulson loaders. Steve just sent me the exploded diagram of the bucket cylinder. One version used the tractors own hydraulics to make the loader work. Mine uses an external front mounted hydraulic pump to make the loader work. I think this is a better way.

TOH,
Sending an exploded diagram of one of the main loader frame lift cylinders. Steve sent this to me some time ago.

TOH,
I wish I had more information on the loaders. May have already sent you this information: Again my source is Steve at Tavis Metal Fab. , Rogers, Minnesota. He told me they are still able to make a loader custom for my tractor: $6000 which does not include the hydraulic pump or shipping. Obviously they have no orders for custom made loaders at that price. As you said there are too many loader manufacturers of small loaders for the small tractors for Paulson to survive. Tavis metal products bought the Paulson loader company. Manufacturer of loaders by Paulson proceeded as follows: They would get a tractor make a loader for it and that became the pattern for other loaders.
The Paulson loader on my tractor is a full frame loader. The back of the loader frame bolts on under the rear axles to the fender mounting bolts on each side. Need to get longer 5/8 bolts. The front of the loader bolts in two places to a plate on each side of the engine. Plate is part of the front mount for the engine.
I used a round tube one foot in diameter with a bar through it which connected to the three point arms on both sides. Filled the tube with concrete. Weight of concrete was 150 lbs which is back of center of the rear axle about 3 feet. Again the physics of a force acting over a distance applies. 150 lbs over 3 feet works well.
I continue to learn about the loader. Wish I had an original book for the loader if one was available. People such as You and Steve have given me excellent information. Through a process of calling numerous hydraulic places found a person at calkins fluid power in Spokane wa. who was familiar with the original gresem valves on the loaders. He was able to order a new cross valve system for me from cross hydraulic power.
Other information from Steve: Paulson would manufacture the loaders and companies selling tractors would add the hydraulics. This has always been part of the interest I have in older farm tractors. Starting with a tractor then finding out information about it.
Our website which is not complete as we have many tractors is einarjensen.com
you might enjoy looking at our website.

TOH,
Found a close up picture of the valve mechanism and tank used on my loader. Valve in one picture is not the new cross valve. The right hand frame
is visible. It curves back under the rear axle and attaches to the fender bolts. The other end curves under the front of the tractor and attaches with one bolt ( large 1 inch bolt) to a plate at front of engine . Bolt and nut used. Same on the right side Found a picture of the new cross valve assembled to the tank for oil

TOH,

Found a couple of pictures that might be of interest to you. One picture shows the old gresem valve and the loader frame. 'Right frame in picture curves back under the axle and attaches with the two bolts that are used to secure the fender. Had to use longer bolts. Same on left side of tractor. Both front frames of loader, left and right curve under the front of the engine and attach with one large 1 inch bolt and nut to each side. 2 bolts and nuts used. Sending a picture of the new cross valve attached to the oil tank reservoir for the hydraulic system

TOH,

I picked up the bucket cylinders from Skagit Hydraulics yesterday. Staff in their shop rebuilt them. Shafts in the cylinders are very tight. Unable to move them by hand. Person that rebuilt them told me they will move with hydraulic pressure. I will be out of state for a month and will be unable to install them until after May 20. Their shop has done work for me before. They have been in business for many years. Cost to rebuild both cylinders plus parts was $220.00 . I had the cylinders disassembled when I left them at their shop.

That loader looks like the Kelley brand on a tractor I just purchased. Sorry...no pictures yet. Might be worth a call. They have a website.

beanmedic,

I had the cylinders rebuilt by Skagit hydraulics in Burlington, Wa. Picked the cylinders up yesterday. I could have rebuilt the cylinders but due to the different seals and several different sizes of o rings decided to have a hydraulic place obtain the parts and do the work. The cylinders were checked out after the shop completed the work and they were ok. I really do not know how they check the cylinders. I would think by applying hydraulic pressure or air pressure.

Sometimes it is best left to experts. What did the rebuilds cost, if I may ask?

labor at $85/hr plus parts was $220.00. I thought it was reasonable.
It helped to have the cylinders taken apart when I took them to their shop.

Beanmedic,

Labor at $85/ hr. plus parts, $220.00

Some pictures of the Paulson loader on my ford jubilee. I used 8 in 5/8 inch bolts to attach the rear frames of the loader under the rear axle. 7in would have been long enough. Frame of the loader is in 2 pieces. Bolts through fender attachments