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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Cat 977L, pressure in hyd reservoir.

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Alvin n Ms.

11-13-2003 08:07:01




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When I take the cap off of the hyd/tank, it seems to be under lots of pressure. Is that normal? Thanks alvinnms




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Brokenwrench

11-13-2003 08:29:35




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 Re: Cat 977L, pressure in hyd reservoir. in reply to Alvin n Ms., 11-13-2003 08:07:01  
This is normal. It is a sealed system and as the fluid expands from heat it builds up pressure.As a side benefit this also helps keep the pump charged with oil when operating.



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Alvin n Ms.

11-13-2003 08:37:28




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 Re: Re: Cat 977L, pressure in hyd reservoir. in reply to Brokenwrench, 11-13-2003 08:29:35  
Brokenwrench, I want to thank you and have a great day. I know that I'm going to catch a lot of flak about a 450JD post. nxtime alv



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