Quick Connect trouble

[woodlandfarms]

Carl,

Is this what you are talking about?

Ken

Just to let everyone know I have hired Ken to shoot all the pictures i need to post on the web.

Thanks Ken... Indeed it is what I am referring to.

ps. Do you ever use your tractor? it always looks way to frikin clean

 

[SpringHollow]

LOL - old picture!

Ken

 

[EddieWalker]

Did you ever put that leak detector in your hydraulic tank. It would sure help you find any leaks that you may have?

I've never heard of leak detector, but I sure could use something to find some of the leaks in my dozer's hydraulic system. I have dozens of hoses on it and go through about a gallon a day running it. At one time, it was over three gallons, so I'm getting better, but very slowly.


What is leak detector and how does it work?

Thank you,
Eddie

 

[woodlandfarms]

It is a chemical you dump in your oil tank, and then with a special light and glasses you can usually track the source. Napa sells the kit as well as other places...

Carl

 

[J_J]

Eddie,

That dye is a product that fluoresce/glows when a black light shines on it, and it glows a greenish yellow. The dye is only about $4.00, and that will treat about 20 gal. A black light can be found just about anywhere. This product can be used in hyd oil, motor oil, anything with a petroleum base, and may also work with synthetics.

 

[J_J]

Carl,


These are my thoughts on the operation of the PTO and steering valve block. The PTO section, is considered an open center valve, because with no voltage, the hyd fluid just flows back to tank. The hose that goes back to tank, also, take the fluid from any relieved condition, or over pressure. and sends it back to tank until the relief condition is met. When the PTO switch is activated, the orifice to tank is closed off, and the fluid flows through to the output line. The steering and lift pump feeds the block through a channel, and on to the steering and lift circuits. If an over pressure is realized, the relief valve routes the pressure back to the tank through the same hose as the PTO relief, until the relief condition is met.

On the solenoid section, did you take the solenoid assembly out of the block, and worked the plunger with a solid 12 v, and not through the PT wiring? When you activated the solenoid /plunger, did you hear a heavy click or thump. Those things don't go bad that often, so I suspect some trash is binding things up. The electrical part of the solenoid only cost around $30.00. I don't know what sizes they make them, but you can see some more examples in Baileys catalog on page 61.

 

[Marks481]

did you hear a heavy click or thump.

The solenoid in my PT422 is actually very quiet. It is just a light click, which is easy to miss. You can also check that the solenoid is energizeed by checking with a steel wrench or screwdriver that it is generating a magnetic field. When you disassemble it from the block, it will come apart in two pieces: the electomagnetic cylinder and the center plunger. Once pulled off the solenoid block, their is nothing that will "click" when it is operated.

I had to replace the solenoid, since my PT 422 arrived with the PTO dead. I can't believe that the solenoid itself is your problem. If the solenoid doesn't shift, then your engine wouldn't bog down like you are describing.

I think some invasive surgery is called for; maybe something has disintegrated and is blocking the ports in your solenoid block.

 

[Bob999]

I previously reported that I had to replace the PTO solenoid operated valve on my 1845. I carefully compared the action of the replacement to the failed unit. It was very difficult to detect any difference in the action between the two units when tested off the machine. The very sligt difference that was observable was that the failed unit seemed to be slightly "sluggish" in its action. However the range of movement was identical.

Again--a worker at PT was over torqueing the nut that holds the coil on the valve and apparently doing it for a number of years. Charlie Iliff reported he had a PTO problem and was shipped a replacement valve and he purchased his 1845 a year before I did.

When the nut is overtorqued it causes the valve to bind. Based on my experience it can take years. The failure on my machine was at the 4 year point. My failure was very similar to what Carl reported--I was mowing and the mower lost power and the engine lugged.

 

[Marks481]

I had the same problem. My PTO was DOA in 2005 and Terry immediately said it was due to it being overtorqued when it was mounted onto the solenoid block.

 

[EddieWalker]

Thanks Carl & J.J. I'll ask the guys at Napa for it the next time I'm there.

Eddie