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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

swing is weak on excavator

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Gary in co

04-27-2004 06:30:35




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I recently purchased a gradall 880 on tracks. It set for 7 or 8 years empty of hyd oil. Right now am in the process of replacing seals. The swing seems to be getting weaker though. are there relief valves on the swing? what should I be looking for? Thanks for your input




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Bob/Ont

04-27-2004 06:57:54




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 Re: swing is weak on excavator in reply to Gary in co, 04-27-2004 06:30:35  
There should be atleast one main relief and a port relief for every line out of the main valve.
Later Bob



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