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Old 11-30-2017, 11:14 AM   #1
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Hydraulic Lift Jacks

I have a 2004 Trop-Cal
My jacks are not fully retracting and I was advised by a fellow member to top off the hydraulic fluid. He also helped me locate the reservoir. Thanks

I went to the auto parts store to pick up some hydraulic fluid and found all they stocked was hydraulic oil. Is that what I use?

Thanks
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Old 11-30-2017, 11:24 AM   #2
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The hydraulic fluid that is being suggested should be ATF (if its red) - locate the label on the reservoir and pump motor, it will state which ATF fluid to use or if it does use hydraulic mineral oil - it will suggest the rated viscosity.
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Old 11-30-2017, 12:46 PM   #3
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Try wiping down the rams and spraying them with silicone spray while they are down. This might solve your problem. My jacks don't fully retract from time to time and that is what I do. It has always worked.
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Old 11-30-2017, 07:20 PM   #4
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X2 spray with silicone not WD40 I need to spray mine about every 4-6 times or the rear will not go all the way up
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Old 12-01-2017, 12:11 AM   #5
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Power Gear uses ATF the original spec was for Dextron. Do not add to the reservoir if the jacks are not all the way retracted. Do as suggested extend the jacks and spray the shafts with silicone. Keep doing that until they fully retract on their own. Low fluid level will not prevent them from retracting.
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Old 12-01-2017, 12:11 PM   #6
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Low fluid level will not prevent them from retracting.[/QUOTE]


When this happens to me, I top off the reservoir with ATF, and they retract.
Doesn't ever need much.
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Old 12-01-2017, 12:21 PM   #7
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If this is a Power Gear system, it probably uses ATF. Dexron III is good. I use Valvoline AFT Synthetic (Dexron III compatible)

You may have external springs. Do as other have suggested. Extend as far as they will go, then wipe the shafts with ATF, then attempt to retract.

If they don't fully retract, how far down are they sticking??
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Old 12-01-2017, 11:08 PM   #8
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One other to check at the bottom of the ram check for a zero fitting. If you have it a couple pumps of chassis/wheel bearing grease. Helps keep the seal flexible and rams lubed.
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Old 12-02-2017, 05:01 AM   #9
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Quote:
Originally Posted by IhaveNOname View Post
Low fluid level will not prevent them from retracting.

When this happens to me, I top off the reservoir with ATF, and they retract.
Doesn't ever need much.[/QUOTE]
There are 2 types of hydraulic jacks.

The more common type is a single acting style that uses oil to extend them and springs to retract them. Your tank can be empty and the spring will still retract them, pushing the oil back to the tank.

The other type is a double acting style. There are 2 lines to the cylinder, one for extending and the other for retracting. When in retracting mode, oil is pumped to the lower line and pushes the jack piston back into the cylinder. That type will have no springs and needs oil going to the pump to retract.
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Old 12-02-2017, 05:31 AM   #10
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Quote:
Originally Posted by IhaveNOname View Post
Low fluid level will not prevent them from retracting.

When this happens to me, I top off the reservoir with ATF, and they retract.
Doesn't ever need much.[/QUOTE]
Your right, they only retract from the tension of the return springs.
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Old 12-02-2017, 12:35 PM   #11
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Link to POWERGEAR parts and service manual ( Leveling system ) You will need to download it.


http://www.irv2.com/forums/downloads.php?do=file&id=37
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