Question about John Deere 6300,6300l,6400,6400l Tractor Radiator

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I have an old John Deere 1209 hay cutter and I cannot get the gearbox to stop leaking oil. I have replaced the seals once and plan to replace them again tomorrow. If they do not hold this time would there be any problem of just filling the gear boxes with grease? I only use this cutter about three to five days a year probably 30 hours a year at most.

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You can fill the gear boxes with grease but also have some oil in there to so they lube till they get warm and grease breaks down reason the seal wont hold is that the seal has wore into shaft

Posted on Aug 24, 2010


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Posted on Jan 02, 2017


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Is the gear box on an old Woods Bush Hog packed in grease or a heavy weight gear oil and what type is best. How do you prevent leaking

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We have just purchased a john deere 2140 B reg. it seems to have a bad oil leak on the hydraulic system. the position of the leak is in the centre of the vehicle directly below the drivers seat. it drips...

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Also they leak from the inner linkage arm seals.
Both reasonably easy repairs, seals readily available.
System holds a lot of oil and low oil will affect the hydaulics and steering.

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