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  1. #1

    Join Date
    Apr 2012
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    16
    Location
    Arkansas
    Mower
    Cub Cadet

    Question Manual says "engage blades at full throttle." Why?

    It seems to me that it would cause less wear and tear on the system if the blades were engaged at a lower engine speed and then bringing the engine up to full throttle.

    I know that with my old lawn tractor, if I engaged the blades a a high engine speed, I'd get a chirp from the belt which I didn't get when I engaged at a lower speed (just above idle). I figure that a chirping belt is a wearing belt.

    Anyway, if you have the straight skinny on this, please share!

    Thanks!
    Christ is coming soon. Are you ready?

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  3. #2
    okiepc's Avatar
    Join Date
    Feb 2012
    Posts
    518
    Location
    Oklahoma
    Mower
    John Deere

    Re: Manual says "engage blades at full throttle." Why?

    I think the way you do, they might have a good reason for that action though.

  4. #3

    Join Date
    Apr 2011
    Posts
    481
    Location
    Massachusetts
    Mower
    Husqvarna, Cub Cadet, MF, Craftsman

    Re: Manual says "engage blades at full throttle." Why?

    My tractor will stall if I engage at low speed. It's a 26hp Kawasaki with a 52-inch deck. If I could I also would prefer to engage at a lower engine speed.

  5. #4

    Join Date
    Apr 2012
    Posts
    16
    Location
    Arkansas
    Mower
    Cub Cadet

    Smile Re: Manual says "engage blades at full throttle." Why?

    Thanks for your reply. When I say "lower speed", I mean the slowest speed you can engage without stalling. Lower speed does make intuitive sense, huh?

    I've e-mailed Simplicity about it. When/if I hear back from them, I'll post their reply.
    Christ is coming soon. Are you ready?

  6. #5

    Join Date
    May 2010
    Posts
    5,446
    Location
    Kansas, Butler county, Just east of DooDah
    Mower
    CTL

    Re: Manual says "engage blades at full throttle." Why?

    I am sure those that have applied the common sense approach, (lowest engine speed possible), will benefit over the long run... Less problems with Belts, pulleys, bearing & bushing, idlers and the rest of the parts and pieces that do not need to be subjected to a shock load Every time they are put to use.
    I don't like deliberately shortening the life span of the pieces that make my equipment function...

    I'm sure manufactures find it easier to 'explain' the simplest procedure, Plus they are also in the replacement parts business so the failures in the future are not necessarily all bad for them... Especially if the customer can accept the failure as "Normal" wear & tear .... KennyV

    I do understand, the short comings of newer, higher Rated horse power engines, that actually have Less lower end torque, but that is No reason to advise WOT engagement of any drive system...

  7. #6
    HarryHarley's Avatar
    Join Date
    Mar 2012
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    104
    Location
    Covington, Louisiana USA
    Mower
    Grasshopper 723K2

    Re: Manual says "engage blades at full throttle." Why?

    Plus 1 for KennyV

  8. #7


    2,500 Post Club
    Ric's Avatar
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    May 2010
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    4,137
    Location
    Florida
    Mower
    Toro Grandstand 36", Toro Z-Master 2000 48" Toro TurfMaster 30"

    Re: Manual says "engage blades at full throttle." Why?

    Quote Originally Posted by Chosen View Post
    It seems to me that it would cause less wear and tear on the system if the blades were engaged at a lower engine speed and then bringing the engine up to full throttle.

    I know that with my old lawn tractor, if I engaged the blades a a high engine speed, I'd get a chirp from the belt which I didn't get when I engaged at a lower speed (just above idle). I figure that a chirping belt is a wearing belt.

    Anyway, if you have the straight skinny on this, please share!

    Thanks!
    It would seem that engaging at a low idle speed would cause less wear and tear on the system but actually it doesn't. It actually uses more engine torque to engage the blades at low speed than high and it puts more stress on the PTO at low speed. Most mowers today use electric pto's that disengage and re-engage at high speed all the time that you mow so why or what would be the benefit to engage the blades at a reduced throttle setting, the only thing you'll accomplish is shortening the life span of your engine, pto and belts.
    As far as the belt chirping that's probably being caused by the incorrect pulley tension, you mite want to look into a new spring for your pulleys for the pto belt.


    G & G Lawn Care
    Mowers: Toro Z Master 48" Toro Grandstand 36" Toro Turf-Master 30"
    Blowers: Stihl BR 600 BR 600 & BR 200 Trimmers: Stihl FS 110 FS 90
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  9. #8

    Join Date
    Apr 2012
    Posts
    16
    Location
    Arkansas
    Mower
    Cub Cadet

    Re: Manual says "engage blades at full throttle." Why?

    Thanks, guys! Obviously there is a wide range of opinions!

    If I hear from Simplicity, I'll post their reply.

    Thank God that this is not an issue of eternal significance!

    Be safe out there!
    Christ is coming soon. Are you ready?

  10. #9

    Join Date
    Apr 2012
    Posts
    16
    Location
    Arkansas
    Mower
    Cub Cadet

    Re: Manual says "engage blades at full throttle." Why?

    I got an answer from Simplicity... "Because the belt can come off if you do it with a low throttle."

    I guess that answers the question. I don't get it, but that's what they said.

    Hey...I'm selling my machine. It is in perfect shape, just too much machine for me. 2007 Simplicity Citation 48". 300 gentle hours. Always stored indoors. Everything up to snuff. You can call me for more info (870) 436-3212.
    Christ is coming soon. Are you ready?

  11. #10


    2,500 Post Club
    Ric's Avatar
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    Florida
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    Toro Grandstand 36", Toro Z-Master 2000 48" Toro TurfMaster 30"

    Re: Manual says "engage blades at full throttle." Why?

    Why are you selling the mower? What's the reasoning behind that


    G & G Lawn Care
    Mowers: Toro Z Master 48" Toro Grandstand 36" Toro Turf-Master 30"
    Blowers: Stihl BR 600 BR 600 & BR 200 Trimmers: Stihl FS 110 FS 90
    Edgers: Stihl FC 90&75 Echo BRD 280 Pole & Chain Saw: Stihl HT 75 MS 181 Hedge Trimmer: Stihl HL 45 HS 45


    Visit The Lawn & Landscape Forum @ http://lawncare.forumsmotion.com/forum





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