Economy PTO +DPF muffler a bad idea?

   / Economy PTO +DPF muffler a bad idea? #1  

bilrus61

Platinum Member
Joined
Jul 1, 2010
Messages
535
Tractor
kubota 4200
I was killing time on the Kubota webpage specing out tractors(dangerous I know..) and noticed the economy PTO feature on the M series and specifically the M9960. In economy mode the RPMs are just 1519 you get the full 540 RPMs out the pto shaft to the brush cutter. Cool. However I've read that if you run the engines with the DPF muffler on them in lower RPMs that greatly shortens the time between your regenerations and that shortens the life of the muffler.

My question is since I would be working the engine hard bushhogging heavy weeds will the engine generate enough heat, even at lower RPM, to burn the fuel cleaner and thusly not clog the DPF which would not then shorter the time between regenerations? If not and the economy pto clogs the DPF faster, it would be a option best left off a new tractor.
 
   / Economy PTO +DPF muffler a bad idea? #2  
You would not use the economy PTO setting for "hard bushhogging heavy weeds". I have it on my New Hollanf T4.75 and only use that setting for light jobs such as lower grass mowing or the standby generator.
 

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