1. Missed the live Ask the Expert event?
    Catch up on the conversation about fertilization strategies for success with the experts at Koch Turf & Ornamental in the Fertilizer Application forum.

    Dismiss Notice

how would you check max rpm- safely..

Discussion in 'Mechanic and Repair' started by mowisme, Jan 6, 2013.

  1. mowisme

    mowisme LawnSite Senior Member
    Messages: 911

    I was going back and forth on getting a tiny-tach and mount it or just get a simple rpm checker to get close rpm and leave at that. Since this is a snowblower and in the cold always I opt for just checking it. I ordered a vibra tach but guess not sure right choice. Heard pro's and con's. But my question is this: If I am to check with that or really any type- how do I run it out to get close to max rpm without risking throwing a rod or something? wouldn't it be bad to run the max rpm for few minutes while adjusting it? also would I have to do this with no load on..is that the way to set max or close to desired safe rpm anyway? thanks a million- Gene
  2. Oldtimer

    Oldtimer LawnSite Bronze Member
    Messages: 1,459

    Follow the manufacturers guidelines for engine speed.

  3. BigFish

    BigFish LawnSite Platinum Member
    Messages: 4,158

    It won't hurt a thing to run it at the max. no-load top speed, AKA high idle. That's what they're designed to do all day.
    The engine owners manual will give you the number. The equip. mfg. will tell you what the operating (load) speed will be.
    Snow blowers don't have much/any parasitic load to deal with. Whereas, most ZTR and commercial walk-behinds have a lot of P.L. to take into account.
    Last edited: Jan 6, 2013
  4. mowisme

    mowisme LawnSite Senior Member
    Messages: 911

    Thanks Old Timer and Big Fish..I'll get it set right according to specs. Gene

Share This Page