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water in 620 transmission

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BR549

09-30-2007 18:36:04




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In changing the fluids in my "new" 620 I found the tranny oil to be milky and condensation inside the filler cap. There was rust on the insides of the drain plugs. The insides that I could see through the filler hole looked fine other than being coated with milky oil. What should I do to avoid future potential problems? Anything to be an the lookout for?




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John VB

10-01-2007 05:22:53




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 Re: water in 620 transmission in reply to BR549, 09-30-2007 18:36:04  
I'd say the best prevention is to keep it out of the rain and change the oil regularly. I think a lot of the older 2-cylinders sit outside and hadn't had their trans oil changed in many years.



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johns48jdb

10-01-2007 03:42:33




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 Re: water in 620 transmission in reply to BR549, 09-30-2007 18:36:04  
you can have some lucky cleaning it out by using a device that hooks to an air hose and sucks a fluid out on a container and use kerosene to spray down in the filler hole to rinse the cavity out. it want get it all. you might do that first, then fill the trany with kero and drive it around for a few minutes in a mid range gear. drain the fluid out and if you can find some cheap fluid to run in it for a couple of hours and drain that out and refill with some good oil. it will be next to impossible to get it all out. don't use valoline oil in any tractor.

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RobMD

09-30-2007 19:17:20




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 Re: water in 620 transmission in reply to BR549, 09-30-2007 18:36:04  
don't leave it outside. Primary reason for condensation and direct water infiltration.

Another reason is leaving it in an open shed which subjects it to warm and cold climate changes, both of which make condensation. In a closed shed without a concrete floor and HVAC controls, you'll still get condensation.



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