Typhoon
Gold Member
For those of you who want to try the 50 hour service yourself, I just did mine on my DK40SE and it was a breeze. I was a little nervous about doing it, but I went to my dealer, and the service guys went over a few things with me, and it was much easier than I anticipated. FWIW, they told me to run the same fluid in my front differential and in the HST/Hydraulic system. The only snag that I hit, was the hydraulic filter (not the HST filter). It was a little too big for my filter wrench (band type). So I ended up having to punch through it with a big screwdriver to get it off. Other than that, no problems at all. I didnt use any fancy pumps to put the fluid back in either.. I just used a long funnel. Also, after topping off the front differential, I had to drive the tractor for a bit, then refill again, drive again, refill again, etc. It takes some time to get all of the fluid to settle in the differential. Good luck!