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Old 07-18-2018, 07:10 PM   #29
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If you have a W24, there is a known rub point with the power steering hose and the hard line. The hard line is still available from Ultra RV Products.

I just finished a year long diagnosis and repair of my J72 system (part of that time includes winter storage). The Ultra RV system with the Ultra Save check valve is the only thing that prevented major issues and getting stuck on the side of the road.


What was your issue? I thought you added the Ultra Save just for insurance?
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Old 07-19-2018, 05:37 AM   #30
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What was your issue? I thought you added the Ultra Save just for insurance?
I probably need to do a full post on this, but in the end it was the pump leaking internally. With the Ultra Save sounding the buzzer when the pump ran, it became apparent that the pump had been running while driving prior to the Ultra Save installation and there was an issue within the system. As we worked through the system components and testing, I replaced the pump as the final cure.
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Old 07-19-2018, 05:21 PM   #31
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I probably need to do a full post on this, but in the end it was the pump leaking internally. With the Ultra Save sounding the buzzer when the pump ran, it became apparent that the pump had been running while driving prior to the Ultra Save installation and there was an issue within the system. As we worked through the system components and testing, I replaced the pump as the final cure.


Sounds like a lot of time involved on that.
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Old 07-19-2018, 06:53 PM   #32
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I probably need to do a full post on this, but in the end it was the pump leaking internally. With the Ultra Save sounding the buzzer when the pump ran, it became apparent that the pump had been running while driving prior to the Ultra Save installation and there was an issue within the system. As we worked through the system components and testing, I replaced the pump as the final cure.
As you worked through the system components and did the testing did you use a pressure gauge to test the pump pressure?
Lynn
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Old 07-19-2018, 08:46 PM   #33
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As you worked through the system components and did the testing did you use a pressure gauge to test the pump pressure?

Lynn


Yes, last trip all seemed to be well because we moved the pressure switch to the transmission side of the Ultra Save check valve due to excessive pump cycling. This stopped the system cycling. However, I had an issue with the pump not shutting off at one stop on our spring trip and we suspected the pressure switch. Installed a gauge on the outlet side of the pump. Pump developed pressure but was starting to sound funny, almost like a gurgling sound one would get with air in the fluid. Pump would drop from 1,500 psi shut off to 500 psi less than a minute. Ultra Save was holding parking brake due to the check valve in the system. Since I had previously tried replacing the solenoid valve, which can also account for a pressure loss, in the end it came down to the pump itself. The replacement pump is an Ultra RV Product design and is more robust than the original Workhorse design. It is also much quieter. Have run the system in the driveway several times and will hopefully be taking a trip in a couple of weeks to do a final verification. Gurgling sound is now gone though.
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Old 07-20-2018, 05:30 PM   #34
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Yes, last trip all seemed to be well because we moved the pressure switch to the transmission side of the Ultra Save check valve due to excessive pump cycling. This stopped the system cycling. However, I had an issue with the pump not shutting off at one stop on our spring trip and we suspected the pressure switch. Installed a gauge on the outlet side of the pump. Pump developed pressure but was starting to sound funny, almost like a gurgling sound one would get with air in the fluid. Pump would drop from 1,500 psi shut off to 500 psi less than a minute. Ultra Save was holding parking brake due to the check valve in the system. Since I had previously tried replacing the solenoid valve, which can also account for a pressure loss, in the end it came down to the pump itself. The replacement pump is an Ultra RV Product design and is more robust than the original Workhorse design. It is also much quieter. Have run the system in the driveway several times and will hopefully be taking a trip in a couple of weeks to do a final verification. Gurgling sound is now gone though.


Wondering how many people that installed the Ultrastop kit realize that they switched the location of the pressure switch to the transmission side of the check from the pump side? And that they offer the upgrade for free.
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Old 07-20-2018, 07:10 PM   #35
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What??
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Old 07-21-2018, 05:17 AM   #36
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Yes, last trip all seemed to be well because we moved the pressure switch to the transmission side of the Ultra Save check valve due to excessive pump cycling. This stopped the system cycling. However, I had an issue with the pump not shutting off at one stop on our spring trip and we suspected the pressure switch. Installed a gauge on the outlet side of the pump. Pump developed pressure but was starting to sound funny, almost like a gurgling sound one would get with air in the fluid. Pump would drop from 1,500 psi shut off to 500 psi less than a minute. Ultra Save was holding parking brake due to the check valve in the system. Since I had previously tried replacing the solenoid valve, which can also account for a pressure loss, in the end it came down to the pump itself. The replacement pump is an Ultra RV Product design and is more robust than the original Workhorse design. It is also much quieter. Have run the system in the driveway several times and will hopefully be taking a trip in a couple of weeks to do a final verification. Gurgling sound is now gone though.
I guess I'd have to see a diagram of the system to fully understand how it works but i'm interested in knowing what releases the Ultra Save check valve so the brake will apply when you need it?
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Old 07-21-2018, 05:23 AM   #37
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Wondering how many people that installed the Ultrastop kit realize that they switched the location of the pressure switch to the transmission side of the check from the pump side? And that they offer the upgrade for free.
FREE???
Wow, I hope Jon sees this post and jumps in here. If not his phone will be ringing off the hook Monday morning.
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Old 07-21-2018, 05:42 AM   #38
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FREE???

Wow, I hope Jon sees this post and jumps in here. If not his phone will be ringing off the hook Monday morning.

Lynn


They offered it to me free. Of course I had bought the Ultrastop just 8 months earlier. I know someone else who was also given the upgrade free as well who installed the Ultrastop several years ago.
Itís only a stainless steel tee, plug and a nipple I believe. Probably cost them a few bucks at most. Considering they realized they put the pressure switch on the wrong side of the check valve which causes problems on some but not all setups itís good customer service to offer the parts free.
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Old 07-21-2018, 05:49 AM   #39
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They offered it to me free. Of course I had bought the Ultrastop just 8 months earlier. I know someone else who was also given the upgrade free as well who installed the Ultrastop several years ago.
Itís only a stainless steel tee, plug and a nipple I believe. Probably cost them a few bucks at most. Considering they realized they put the pressure switch on the wrong side of the check valve which causes problems on some but not all setups itís good customer service to offer the parts free.


I donít think it was an error on their original design since the pressure switch was always on the pump, however any leakage at the solenoid valve or pump will trigger the pump to run again. The kit corrects a very specific issue which not all owners may experience.
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Old 07-21-2018, 06:35 AM   #40
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I donít think it was an error on their original design since the pressure switch was always on the pump, however any leakage at the solenoid valve or pump will trigger the pump to run again. The kit corrects a very specific issue which not all owners may experience.


On the original design it didnít matter where the transducer was located so long as it was after the pump as there were no check valves and the transducer was monitoring the entire system.
By adding a check valve immediately after the pump and then keeping the transducer between the 2 your monitoring a small portion of the system that contains only a few ounces of fluid. You donít need a leak to cause cycling issues. Just the pump shutting off can let a small amount of pressure back through the pump which will the cause it to cycle.
Worked as a pipe fitter installing pumps in high rises for 32 years. There installation is no different. Pump-check valve-transducer (or mercoid switch) in that order, always!
I should have noticed the issue when I installed mine. Guess I wasnít paying attention.
When I started having the cycling issue this spring and called Brazels and they started explaining what I needed to change I immediately realized what was happening.
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Old 07-21-2018, 05:01 PM   #41
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Sounds like yours was cycling as well. Did it continue to cycle or gradually taper off as you drove?
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Old 07-21-2018, 05:25 PM   #42
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Sounds like yours was cycling as well. Did it continue to cycle or gradually taper off as you drove?


I installed the Ultrastop system last fall and really didnít use it much after that but everything was working fine when I put it away for the winter. When I took it out this spring I noticed it cycling and immediately called Brazels who then sent me the upgrade kit.
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