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Farmall & IHC Tractors Discussion Forum
:

replacing oil seal in super h rear end

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Andrew Kappers

04-20-2008 20:17:40




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I am trying to get off the little special nut that attaches to the linkage piece that drives the belly pump on a stage 1 super h. I shoved a rode between the transmission gears and tried to turn it off. I tried both ways and it wont budge. Over the years the oil seal went bad and sprayed rear end fluid all over belly pump reservoir. I am trying to replace the oil seal and ran out of ideas. Any suggestions. Thanks

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Bob M

04-21-2008 05:43:16




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 Re: replacing oil seal in super h rear end in reply to Andrew Kappers, 04-20-2008 20:17:40  
Once that countershaft nut gets broken free it usually spins off easily by hand. Getting it broke free seems always to be a problem! A couple things that have worked for me. (Presumes you already locking the transmission gears…):

1 – Grab the nut with the biggest pipe wrench that can fit up in the belly and get a good bite on the nut. Some “strong arm” applied to the wrench handle will then break it free.

2 – Find a piece of square keystock that fits in the nut slot and is about 8” long. Lay one end of the keystock in the slot then give the free end a whack with a large hammer.

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Here’s another I’ve heard about but not tried: Weld a piece of keystock to a large (eg. 1-1/4”) hex nut. Place the keystock end of the welded nut/keystock into the slot, then use an impact on the nut to loosen the countershaft nut.

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Note! When reassembling the countershaft nut you only need to run it up hand tight – first time you use the belly pump the nut will tighten itself that last 1/16 turn or so!

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Wayne in MN

04-20-2008 20:52:54




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 Re: replacing oil seal in super h rear end in reply to Andrew Kappers, 04-20-2008 20:17:40  
The coupling nut loosens by turning left (counterclockwise). Lock the brakes & put the transmission in reverse before trying to loosen the nut. It is tight because as the Lift-All is used, the nut is forced tighter each time due to rotation of the shaft.
Be patient and get a bigger wrench!



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