Quick Connect trouble

[J_J]

Carl,

Because the steering and PTO pumps and circuits are separate (from the pump to the return tank) I would think that the high pressure filter is on only one of those circuits--either steering or PTO. Unless it has 3/4 inch hoses to and from it I would think that it is on the steering circuit.

Bob,

Do you think the fluid going to the accumulator is filtered because it has to feed the brake system on the wheel motors, and should be kept especially clean. It seems like only those that have brakes on the wheel motors, have the filter. Is this correct?

Does anyone have a good hydraulic schematic that they believe is thorough/complete and correct. I would like to have one for each version of the PT.

 

[Bob999]

Bob,

Do you think the fluid going to the accumulator is filtered because it has to feed the brake system on the wheel motors, and should be kept especially clean. It seems like only those that have brakes on the wheel motors, have the filter. Is this correct?

Does anyone have a good hydraulic schematic that they believe is thorough/complete and correct. I would like to have one for each version of the PT.

I have an 1845 with the brake tender system. There is no high pressure filter on my machine. The only hydraulic filter on my machine is on the suction side of the variable displacement pump. I did add a filter on the return line of my mower--the only implement I have that uses the PTO. I ran it for just about the full mowing season last year and it still has the original filter on it so there apparently wasn't a lot a particulate matter in the hydro fluid.

My understanding of the design theory of the PT hydraulic system was that by starting with a clean system and filtering the make up fluid for the variable displacement pump the entire system could be kept "acceptably" clean. Based on trouble reports prior to Carl I had no reason to change that theory. Carl's problems may or may not be a basis for changing the theory--he has the additional filter as compared to my system and he may be having problems resulting from inadequate cleanliness of the system.

 

[woodlandfarms]

It is hard to judge my system fairly. It was abused prior to my purchase, and was not completely rebuilt (i.e. leaking hoses replaced). Nor has my environment been the best for repairs (basically on a gravel driveway under a carport). But the weird lumps of rubber in my high pressure filter (and none in my low pressure filter) are intriguing...

My system is very different than the schematic provided to me by Bob for the 1845. I asked Terry for a schematic, he said he would send it and never did. Either it does not exist or he forgot, and frankly I forgot until this moment. If he has one and I get it I will indeed share.

In looking at the 1845 compared to what my system has mine appears to have more bells and whistles, but I think is a bit cleaner in design.

Anyway.. Speaking with no authority so take my ramblings with stride.

Carl

 

[toy]

It is hard to judge my system fairly. It was abused prior to my purchase, and was not completely rebuilt (i.e. leaking hoses replaced). Nor has my environment been the best for repairs (basically on a gravel driveway under a carport). But the weird lumps of rubber in my high pressure filter (and none in my low pressure filter) are intriguing...

My system is very different than the schematic provided to me by Bob for the 1845. I asked Terry for a schematic, he said he would send it and never did. Either it does not exist or he forgot, and frankly I forgot until this moment. If he has one and I get it I will indeed share.

In looking at the 1845 compared to what my system has mine appears to have more bells and whistles, but I think is a bit cleaner in design.

Anyway.. Speaking with no authority so take my ramblings with stride.

Carl

As much trouble as you have been having with hoses busting and being deteriated and the filter that had the chunks of what looked like rubber in it, have you considered getting one of those hand pumps like people fill up kerrosene heaters with and rigging up a strainer on it and pumping out your tank and giving the tank a good cleaning, a lot of your trouble might be coming from a lot of trash in your system. If you didn't want to put new oil in it for what ever reason[$$$] I would strain it good to make sure I had a cleaner fluid in my machine. I hope you get it lined out soon. Your quick disconnects might have dirt in the fitting that is causing it to be hard to remove or reattach[not letting the sleeve slide back far enough to let it disconnect]. I have heard of some hitting the end of their disconnect to releive pressure maybe that has been done to your disconnect and damaged it some way that is causing some of your problems. You should be getting it lined out soon as much as you have done to it.