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Re: Rotary Mower Question


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Posted by Dean on July 18, 2016 at 11:30:38 from (152.216.15.5):

In Reply to: Re: Rotary Mower Question posted by BarnyardEngineering on July 18, 2016 at 10:19:32:

Agreed, but HP is HP.

Recently I replaced a 2007 MF 533 with a 2015 Kubota L6060. I use/ed both tractors to pull a HD 6' rotary cutter through various conditions.

The MF had a 202 CI NA three cylinder Perkins engine rated 44 PTO HP at, I believe, 2,100 RPM. Rated PTO speed was about 1,750 RPM.

The Kubota has a 148.5 CI 4 cylinder turbocharged engine rated at 53 PTO HP at 2,700 RPM. Rated PTO speed is about 2,400 RPM.

The MF was definitely a lugger but the Kubota will mow the same parcels at a higher ground speed condition/condition, while "screaming" along at 2,400 RPM (It sounds like a ZT mower.).

I do the same jobs in considerably less time with the new Kubota, though some (not all) of the time saving in some (not all) of the parcels is due to the convenience of the hydrostatic transmission in the Kubota vis a vis the 8X2 crash box in the MF.

The down side: The high RPM, turbocharged Kubota uses over twice the fuel to do the same jobs than did the MF, no doubt, mostly due to the inefficiencies of the hydrostat. It is, however absolutely wonderful to drive.

Dean


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