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Case Tractors Discussion Forum
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Case 446 - gas in hydraulics

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Randy Blankensh

09-08-2003 07:07:48




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My brother-in-law filled the hydraulic reservoir with gas. How do you drain the system on the 446 garden tractor?




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Max

09-08-2003 22:30:20




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 Re: Case 446 - gas in hydraulics in reply to Randy Blankenship, 09-08-2003 07:07:48  
Underneath the tractor on the travel control valve you will see a pipe plug that takes about a 5/16 allen wrench. That is the drain plug for the hydraulics. Once the plug is removed, move the travel lever to fwd until drained, then select Rev to complete the drain for the system. Then add new 10w40 motor oil. Depending on whether the tank is in front it will take 4 quarts where if the tank is under the battery, then 5 quarts.

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Glenn/Mn

09-08-2003 09:42:46




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 Re: Case 446 - gas in hydraulics in reply to Randy Blankenship, 09-08-2003 07:07:48  
Suction hose from pump to tank is on the bottom and burried, return line from the oil cooled is on the right hand side. you may need to fill tank of oil and let it come out by the cooler, might be dangerous to allow pump to pressurize the gas and force it out. try turning over the engine with out having power on the coil so no spark occurs and engine does not run, shut off the gas so you dont flood the engine, may wear down the battery but may be easier than disconnecting the drive coupling from the pump and turning over by hand, (last resort) Re-think relationship with brother in law and future use in borrowing power tools.

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