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Message: <blockquote data-quote="ZANMAN" data-source="post: 45245" data-attributes="member: 5949"><p>It's good that you changed your case drains, they protect your pump after one or both of your drive motor<s> fails. They will not stop the oil from getting into your chaincase. Your motor is pressured up and the chaincase has no pressure, once your seal blows, you need to change out that carrier seal. First remove your side covers, easier with tires removed. Then drain your hyd. fluid, remove both main hyd. hoses and the small drain hose off the drive motor. Now before you remove your drive motor, the chain case fluid should be drained down below your seal, especially if it's filled to the top. Below your engine is a plate with 3 screws , remove it, clean out all dirt, there are 2 plugs in there with rubber bushings, 1 is for the fuel tank, the other is for the chaincase, have a few pans ready, as normally a chaincase holds 20 gallons, overfilled may be 30 gallons, then pop your plug and start flipping pans. When your all done, reinstall your plug, suggest new rubber bushing, you don't want a tiny leak . Also while your down there, good idea to drain out a gallon of fuel, in case you have any dirt or water build up in there. , re-install your cover plate. Next remove your drive motors, your carrier seals are now exposed, they are tough to get out, I usually drill 2- 1/8' holes oppsite each other, and use a screw type slide hammer puller, pop them out. Next, buy new seals, and try to borrow the seal installer from bobcat, I tried to install them without it once, never could get them straight. Re-assemble, don't forget to install new o'rings on the drive motors. You should also put in a new hyd filter, even your fill cap is a breather filter, top off fluids and start and check for leaks. To fill that chaincase, you need to remove that front center cover between your feet and fill to fluid comes out the front center plug in the front of your machine, use the same hyd oil as your machine uses. I may have written this fast and may have forgotten something, but this should get you through it.</s></p></blockquote><p></p>

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