Hydro whine: 600 hr thoughts

[neverenough]

I happened to have my new tractor in the dealer for other issues while it was making the louder "whinning" noise. The service person told me that it will do that when the filter is getting plugged up. He said to change it. This was just before the initial 50hr oil and fluid service, but I also transfered all my equipment to the new tractor during this time. I think some of the issues was with all the cylinders I was hooking up to the new system. All the years I have had these smaller tractors with the hydro tranny's, this is the first time I experienced the "whine". From now on, I will go by the book's service interval, or when the "whine" is pronounced, which ever comes first. IMO, a couple extra filter changes and a few gallons of fluid is cheaper than a system rebuild and the down time that goes with it.

 

[HomeBrew2]

Yep! Now at 800 hrs. The pronounced whine started at maybe 775. I just put a new filter in and the whine is back to normal. So I'll plan on a new filter at 150-200 hrs. With system all sealed up, I only lost about a cup of fluid (plus the filter volume).

Thanks to all for helpful replys to this.

Cheers!

 

[Marcussen]

The service chart for my L2800 recomends fluid change every 400 hours but filter change every 200 hours. My problem is the amount of fluid I loose when I pull the filter off, when I last serviced the tractor I drained 5 gallons of fluid by just pulling the hydraulic filter. No loss when I changed the HST filter.

 

[HomeBrew2]

Oh, you have 2 filters. I just have 1 for everything. I kindof decided today to go another 200 hrs for the hydro oil change (my normal interval is 300hrs).
Thanks for the info.