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Old 09-10-2014, 04:01 PM   #1
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Power gear hydraulic pump

The pump that drives my hydraulic lift system making strange noises, and jacks are going down slow.
Can the pump be rebuilt or do you have to replace it with a new pump?
I am sure there or previous links with this problem however on my phone it is hard to do a search.
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Old 09-10-2014, 04:13 PM   #2
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If you are absolutely sure the pump is the problem, a replacement is you best choice. Also, be sure the complete hydraulic system is flushed clean and inspected for contamination. Hopefully your filter would have trapped any debris from the failing pump.

Ensure you don't have another issue causing the noise, cavitation due to clogged filter, low fluid level or air leaking into system on intake side. Air leakage will normally cause an overflow or leak of fluid, so I'm sure you'd mention that if it were the case.

Good Luck
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Old 09-10-2014, 08:18 PM   #3
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The fluid is full, where would the filter be located?
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Old 09-11-2014, 12:58 AM   #4
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I'm not an expert on your coaches hydraulic system. So I was standing by for someone who is more familiar the issue you have.

I did some research and found this online. Please see the link and I hope this helps.

http://support.powergearus.com/techdocs/82-L0506.pdf
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Old 09-11-2014, 07:19 AM   #5
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Quote:
Originally Posted by Dtwallace View Post
I'm not an expert on your coaches hydraulic system. So I was standing by for someone who is more familiar the issue you have.

I did some research and found this online. Please see the link and I hope this helps.

http://support.powergearus.com/techdocs/82-L0506.pdf
Thanks DT I downloaded the above manual but I do not find any filter.
The pump sounds like it is cavatating but is full of fluid.
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Old 09-11-2014, 07:32 AM   #6
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There is no filter on the PG pump system.
Usually it is the motor that goes bad from moisture getting into it. Usually make a growling noise that keeps getting louder.

A good 12V rebuild shop for alternators or motors may be able to rebuild it.
New one from PG is a lot of $$$.
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Old 09-11-2014, 10:13 AM   #7
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I didn't think there was a filter I have never seen any discussions on changing it
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Old 09-11-2014, 05:25 PM   #8
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On my MH, the hydraulic and the Power Gear jack systems are separate. The hyd system runs the power steering and side radiator fan. It uses AW 46 fluid. The PG jack system is a stand alone system and uses Dexron III.

Email PG, they can help.
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Old 09-11-2014, 05:38 PM   #9
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Often the strange noises are fluid bypass opening and closing it is likely you have a valve problem. depending on which valves you have you can manually open them then run the pump if the jacks go down faster and the pump sounds normal you have a valve problem.
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Old 09-11-2014, 09:01 PM   #10
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Often the strange noises are fluid bypass opening and closing it is likely you have a valve problem. depending on which valves you have you can manually open them then run the pump if the jacks go down faster and the pump sounds normal you have a valve problem.
How do you know which valve to manually open?
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Old 09-13-2014, 01:58 PM   #11
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If I had a bad valve wouldn't that just make that Jack go down slower and not affect the other three?
How do you manually open the bypass valves?
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