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Old 01-18-2025, 05:40 PM   #1
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PowerGear leak

The top jack hose is leaking and it caused the sheath of the hose to deteriorate.
I don't suppose that could be an O-ring he asked hopefully ?
Also to take that line off is there a protocol to relieve pressure first (guessing you want the jacks all the way up) before removing it ? Considering my luck, it's probably the front jack and longest/hardest to change hose.
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Old 01-18-2025, 07:50 PM   #2
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Assume you have springs on the jack to pull it up.

I'd pull the fuse on the jack motor so it can't be accidentally started.
Break the hose at the pump to relieve the pressure.
Then take the hose loose at the top of the jack. The fitting on the top of the valve block at the pump, is 37 jic flare fitting, if tight they seldom leak. It is attached to another fitting that may have an o-ring on it. The jack may be the same way. This type of fitting could leak if not tight enough.
Hoses can deteriorate from the inside and weep. Better quality hoses can last a long time, lessor quality no so much.
I have a tractor with front end loader and backhoe. The hoses on the front end loader aren't the best quality and I have to change as they fail.
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Old 01-18-2025, 08:20 PM   #3
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Originally Posted by Iceclimber View Post
The top jack hose is leaking and it caused the sheath of the hose to deteriorate.
I don't suppose that could be an O-ring he asked hopefully ?
Also to take that line off is there a protocol to relieve pressure first (guessing you want the jacks all the way up) before removing it ? Considering my luck, it's probably the front jack and longest/hardest to change hose w/o hundred dollars.
First get a can of brake cleaner and clean the area completely. Then run the jacks and see where the leak is coming from. If it is the hose replace it. If you retract the jacks it will let all the pressure off them. I did mine a year and a half ago. Not a fun job but I was 82 years old at the time. Most importantly check the price of the hose from the manufacturer. Then check the local hydraulic hose maker. I saved over two hundred dollars by having mine made locally. Just cut off both ends so he knows which fittings to use.
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Old 01-18-2025, 10:10 PM   #4
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Thanks gents. These jacks do not have springs. I clean the shiny tube parts and they also have grease zirts for the seals and regular attention helps them go up. I am a big fan of House of Hose in my home town, they can literally make anything. However I am not there, I am in Palm Springs so I'll have find another house what makes hose.
I can (now) see a hairline crack at the end of the crimp so I assume it was leaking for a while and ate away at the sheath until it destroyed it. The actual white braided hose appears intact that is why I was hoping it was an O ring. I will get it cleaner and see what I can see. Thanks for the advice I will let you know the outcome. It's hard to be motivated to work on this when it's 75 and sunny every day.
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Old 01-19-2025, 10:10 AM   #5
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Some jacks have internal springs.



Keep us posted on what you find and how you fix.
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Old 01-19-2025, 05:54 PM   #6
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Some jacks have internal springs.

And some are bi-directional, under hydraulic pressure in both directions. Mid & high end models typically have that type because it gives much better control over leveling.
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Old 01-20-2025, 05:19 PM   #7
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And some are bi-directional, under hydraulic pressure in both directions. Mid & high end models typically have that type because it gives much better control over leveling.

Ya but the valve block only has 3 hoses so my guess one hose at the top of each jack with pressure to push it down, internal spring to bring it up.
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Old 01-21-2025, 06:51 PM   #8
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I got unlazy. The 3/4 inch fitting next to the block took about half a turn and got snug. How does the next fitting go ? It turned easier clockwise but I didn't want to go too far without consulting y'all. It did feel tighter or at least I imagined so. I've got kitty litter underneath to show if it keeps leaking. They appear to still be holding pressure.
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Old 01-23-2025, 09:55 AM   #9
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It depends on the type of fitting. But an Oring needs to compressed but not too much, sometimes there is a washer and nut above the oring. These are normally used with an elbow fitting where you have to be able to align the fitting in a certain direction. Screw the fitting in as tight as you can to get it aligned, meaning you may have to back it out a portion of a turn. The the washer and jam nut are tighten pretty tight.



Bit you tightened it some and got the leak stopped you may be good to go.
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Old 01-23-2025, 11:11 AM   #10
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Man I hope so. I'm not on the road so less of a concern. I will have to get some sort of covering around the hose.
I was not looking forward to replacing that. Cuts into golf/pool time.
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