Rpm-what range do you use ???

Forum Forums Tractor Operation And Maintenance Rpm-what range do you use ???

Viewing 8 reply threads
  • Author
    Posts
    • #31079
      TONE-TONE
      Participant
        • Offline

        With my Jinma 254 I have been running it at 2,000 rpm for all of the work I have used it for.  But have been thinking that might be a little too high.  What do like owners / users recommend????  Or like tractors.  Thanks a bunch !

      • #38098
        Tinbender
        Participant
          • Offline

          About the only time I run that high is when I'm going down the road from one side of the property to the other. But I don't plow anything but snow with it. When I'm using the box blade with the tines down maybe 1700, but that's about max for me.

        • #38099
          DavidPrivett
          Participant
            • Offline

            putting around 1500 or so, anything using pto 1800 to  2000 to maintain good blade speed cause really correct rpm to achieve 540 pto rpm would be around 2400 . remember do not lug the engine use a lower gear and bump up the engine rpm for wanted ground speed.

          • #38100
            pedavies
            Participant
              • Offline

              I remember seeing a couple of times that 1800 would give you 540 rpm. I try not to go over that when blowing snow or using a brush cutter.

              Paul

            • #38101
              Tinbender
              Participant
                • Offline

                Sounds about right. 2400 is really winding up one of these engines, I wouldn't think of running at that speed even for a few seconds.hmmm

              • #38103
                DavidPrivett
                Participant
                  • Offline

                  I might have miss spoke 2400 is most likely max rpm and take 80 percent of that to get around 540 , it should be in the manual . I know the  50 hp quanchi and 92 hp perkins engines I have has no problem running at 2400. My 20 hp has no tach. the dealer said max it out then back it off some , he said they are governed on the low side of where they could run. I know it is apples and oranges but look at what the diesels are running at now,3000 is nothing. It is all in the engineering.

                • #38104
                  Tinbender
                  Participant
                    • Offline

                    “It is all in the engineering.” Precisely what concerns me.

                  • #38105
                    TONE-TONE
                    Participant
                      • Offline

                      Thanks for all the reply's.  Will definitely back her down to 1,800 rpm's when working.  Really makes sense.

                    • #38110
                      yocsr
                      Participant
                        • Offline

                           I've got a 40 hp and 1700 to 1800 gives me good mower speed with the brush hog and finish mower. I found general work, box blade and things of that nature 1500 to 1600 is plenty.

                    Viewing 8 reply threads
                    • You must be logged in to reply to this topic.