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Old 02-20-2014, 09:12 AM   #1
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Powergear jacks

Hi all I own a 2008 Gulfstream Independence I'm having and issue with my drivers side rear jack slowly falling overtime. I retract the jacks and they come up fine. Go out the next day and the jack will be extended up to six inches. Has any one else had this problem? I seen a similar post to this on here but didn't see a final outcome. Thanks Dan
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Old 02-20-2014, 10:46 AM   #2
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You must have the electric jacks.
Only way PG hydraulic jacks could do that. Is if the spring was broken in it and valve was stuck open.
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Old 02-20-2014, 11:05 AM   #3
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I think it may may be hydraulic. If the fluid is low , I think that can happen. Let's see what the op says.
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Old 02-20-2014, 06:31 PM   #4
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Send PG an email, they are very responsive.
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Old 02-20-2014, 10:44 PM   #5
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If Powergear jacks are like my HWH jacks they have a manual valve that you can open to allow the jacks to retract if there is an electrical problem that keeps the solenoid from releasing pressure to retract the jack. When you bring your jacks up open the valve for this jack while it is up and see if it still has the problem. I think one of the other posters might be right that the extend solenoid is leaking by and there is enough residual pressure that pushes the jack out a few inches. Opening the valve would keep it from having pressure on the jack. This would only work if the jacks were like HWH and have the manual valve.
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Old 02-21-2014, 10:19 AM   #6
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Power gear hydraulics use a spring to "Suck it up" as it were.

I see no way the jack can "Self Extend" though air in the lines can do strange things. but that would take a lot of air.

IF, the jacks are hydraulic..

You need to park with the rear wheels HIGHER than the ground, This can be very tricky but there are many places you can do it or you can build a set of "Stair Step" ramps such as I use to get the wheels off the ground, I do not know how much but I'd guess at least six inches

Extend jacks all the way (use the manual override to extend the rear jacks, both of them)
Retract
Repeat
Repeat
Book says 3 times should do it but I would go 4

And that's it.

You might wish to ramp up the front tires and do it with them too.

My plan (I need to replace a pretzel, used to be a jack) is to put brake bleeder valves in the plugged port and use them instead of tricky parking.
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Old 02-21-2014, 06:53 PM   #7
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Quote:
Originally Posted by wa8yxm View Post
...Power gear hydraulics use a spring to "Suck it up" as it were...
Maybe some use a spring, mine don't.
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Old 02-21-2014, 09:10 PM   #8
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Quote:
Originally Posted by Cat320 View Post
Maybe some use a spring, mine don't.
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