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Case Tractors Discussion Forum
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680CK remove hydraulic pump

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Bill V

11-11-2007 11:19:58




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I have a 680Ck 66-67 year,trying to remove hydraulic pump to replace belts.Manual says to unbolt and pull pump shaft out of of front pulley. I cannot get it to separate from flex coupling in the crankshaft pully. Any suggestions?




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Roger (Mi)

11-13-2007 03:05:24




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 Stuck hydraulic pump shaft in reply to Bill V, 11-11-2007 11:19:58  
The best way to free up a hydraulic pump shaft is to use a small air hammer. Place it against the coupling and let it vibrate. The vibration causes the rust to pulverize, and the shaft can be pulled out with ease.



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