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Old 06-15-2015, 10:05 AM   #11
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A blocking valve is just that a valve that blocks flow. It will be either on or off and have to withstand say 2000# psi of system pressure. A flow contol valve acceptable of same pressure will be adjustable. A blocking valve (ball valve) can be installed in the extend line going to the cylinder that raises the highest. When you want the low side to catch up with the high side, shut the blocking valve off to the high side cylinder and bump the button till level. Just don't forget to open it back up. Do not go to Lowe's and get a ball valve for water lines ... they are not made for the pressure in our hydraulic systems.
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Old 06-15-2015, 02:06 PM   #12
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Petfect, thank you.
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Old 06-15-2015, 09:11 PM   #13
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I don't like this. It's bad business to expect the front jacks to have anything to do with side to side leveling. You risk twisting the frame. Don't be lazy. Use blocks/planks to get side to side level. It's better for the suspension, even if you have the Level up system.
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Old 06-15-2015, 09:28 PM   #14
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You may have air in the system. Extend and retract the legs their full stroke a couple of times. It may displace the air into the tank. Just a possibility.


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Old 06-15-2015, 10:38 PM   #15
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Sterlingsilver are you saying that even with the six point level up system one should use blocks and planks to level side to side? What are your thoughts on electric front jabs extending simultaneously. Rear stabilizers down, rv now level. Then you open slides and they hold rv level. Never bent a frame doing that cause the electric jacks don't seek a fluid level. Not lazy here its just a pain in the rear to guess how much the hydraulics will equalize.
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Old 06-15-2015, 11:29 PM   #16
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I agree about Level Up ... that's what it's touted for as an option ... self leveling with out dragging the stack of wood around you used to do. Although there may be air in the system ... the way the front jacks are plumbed without Level Up ... the heavier side will always lag the lighter going up and be in advance going down.
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Old 06-16-2015, 06:53 AM   #17
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Quote:
Originally Posted by Sterlingsilver View Post
I don't like this. It's bad business to expect the front jacks to have anything to do with side to side leveling. You risk twisting the frame. Don't be lazy. Use blocks/planks to get side to side level. It's better for the suspension, even if you have the Level up system.
I agree, (partially) I don't think anyone is, or should, expect the front hydraulic landing gear to level side to side. This is not there their job, and by no means are they capable of doing this. The trailer should be level side to side before you are unhitched from your truck (not including the level up system). The hydraulic landing gear will generally lower one at a time until one reaches the ground and feels resistance, then the other will drop. Once both are on the ground, they should raise together at an even rate. If one is raising more than the other, there may be a bad seal or air in the lines that is compressing. The level up on the other hand, is designed to level side to side without the aid of blocks. Granted, I wouldn't do this with an extreme out of level condition, but that's my preference. The Level Up system is capable of lifting the entire trailer off the ground, and I've seen it done by factory techs. As for the OP, I would do the simple things, like bleed the air off, as I mentioned earlier, and check for any type of leak down in the system. Also, eliminate human error by making sure your trailer is perfectly level at the axles, then check your system for level at the landing gear to see if there is a twist caused by your landing gear.
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Old 06-16-2015, 07:16 AM   #18
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Thanks dieselguy. I will have this done as soon as warranty expires. Is the blocking valve adjustable manually. What you described is exactly what is happening. Jack
If you are still in warrenty, DON"T Play with it take it in. It should not be doing that as you know, I wouldn't be doing any thing to the system until your out of warranty, or you will VOID it. Until then just use block's even if it's a PIA for now....
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Old 06-16-2015, 09:30 AM   #19
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Perhaps not looking ahead, I’ve opened a can of worms about the possibility of adding a valve to enable the 2 front hydraulic jacks to make a fiver sit level side to side. I do agree the 2 front hydraulic jacks should not be used to mimic a Level Up system … it could stress the frame. What I was short sidedly relating to is a situation I have in my own driveway. The drive way is level side to side, but not front to back as it naturally slopes a bit toward the street. The left side of my fiver is heavier than the right due to a couple of slides adding weight. With the axles sitting near level, the heavier side always slightly lags the lighter side when I unhook from my truck. The heavier side always slightly leads the lighter side when I lower it down back on the truck … it is a bit annoying. The cylinder never drifts after any use. I deal in hydraulics by trade … I have tried bleeding any air in the system, but the end result is as described above. Any time two cylinders are tied together with no flow control or balancing valve … if one has a lighter load … it will move a bit faster … that’s the way things happen in hydraulics. Just to enable the capability to make the fiver sit level on near level ground I proposed adding the blocking valve … maybe I need to re-bleed my system yet again ………. I never had this issue with the old electric jacks on my previous fivers … if it was level coming off the truck … both electric jacks pushed it up the same side to side.
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Old 06-16-2015, 09:48 AM   #20
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Perhaps not looking ahead, I’ve opened a can of worms about the possibility of adding a valve to enable the 2 front hydraulic jacks to make a fiver sit level side to side. I do agree the 2 front hydraulic jacks should not be used to mimic a Level Up system … it could stress the frame. What I was short sidedly relating to is a situation I have in my own driveway. The drive way is level side to side, but not front to back as it naturally slopes a bit toward the street. The left side of my fiver is heavier than the right due to a couple of slides adding weight. With the axles sitting near level, the heavier side always slightly lags the lighter side when I unhook from my truck. The heavier side always slightly leads the lighter side when I lower it down back on the truck … it is a bit annoying. The cylinder never drifts after any use. I deal in hydraulics by trade … I have tried bleeding any air in the system, but the end result is as described above. Any time two cylinders are tied together with no flow control or balancing valve … if one has a lighter load … it will move a bit faster … that’s the way things happen in hydraulics. Just to enable the capability to make the fiver sit level on near level ground I proposed adding the blocking valve … maybe I need to re-bleed my system yet again ………. I never had this issue with the old electric jacks on my previous fivers … if it was level coming off the truck … both electric jacks pushed it up the same side to side.
Same situation here. I think the three of us (you, me, & Jack) are on the same page. I just need to find the time to pull a line to see what thread it is for a fitting adapter. I may look into getting another electronic valve and mount another switch for left/right controls. I built electric jacks for leveling aft the axles so I will use them for leveling. I had my Wildcat on one front landing gear before with no ill effect so I'm not worried and warranty is up.
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