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  1. #11
    Elite Member
    Join Date
    May 2012
    Posts
    2,972
    Location
    Knoxville, TN
    Tractor
    Bobcat CT225

    Default Re: Engaging the PTO shuts the mower off

    Quote Originally Posted by heviduty View Post
    I agree. Most likely a seat switch if the blades are clear and nothing is jammed in the belt(s).
    I thought that too, but he said it "bogged." If it was a safety interlock, the engine would simply die. Bottom line, though: it's either the safety interlock or something is jamming the belt or blades.

  2. #12
    Super Member Gary Fowler's Avatar
    Join Date
    Jun 2008
    Posts
    8,853
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: Engaging the PTO shuts the mower off

    If the motor is bogging down, it sounds like you have a spindle bearing locked up. Try turning each bearing shaft including the clutch shaft to see if everything is turning freely
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  3. #13
    New Member
    Join Date
    Aug 2012
    Posts
    6
    Location
    Grottoes, Va
    Tractor
    New Holland Ford LS 35

    Default Re: Engaging the PTO shuts the mower off

    yes the blades turn freely by hand!

  4. #14
    Platinum Member
    Join Date
    Mar 2006
    Posts
    868
    Location
    BEECHER CITY, IL
    Tractor
    KIOTI DK45S

    Default Re: Engaging the PTO shuts the mower off

    You don't say what model you have, but if the seat switch was acting up the mower would die as soon as you took your foot off the brake pedal. If this is a hydrostat mower, especially with the foot direction control I would bet that the pedal is sitting slightly to the reverse side, causing it to engine the reverse safety switch, and causing the mower to die because it thinks you are backing up.
    ILLINOIS ENGINE, Beecher City, IL
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    ILENGINE over at Lawnmowerforum

  5. #15
    New Member
    Join Date
    Aug 2012
    Posts
    6
    Location
    Grottoes, Va
    Tractor
    New Holland Ford LS 35

    Default Re: Engaging the PTO shuts the mower off

    Im not sure the model other than LS 35. It is a hydrostat mower. If the pedal is sitting slighty to the reverse how do you correct that?

  6. #16
    Veteran Member
    Join Date
    May 2012
    Posts
    2,199
    Location
    Me
    Tractor
    Mahindra Max28XL HST

    Default

    Quote Originally Posted by MandySue
    Im not sure the model other than LS 35. It is a hydrostat mower. If the pedal is sitting slighty to the reverse how do you correct that?
    If it is similar to my HST tractor, u would just nudge the forward pedal a little, relieving the pedal from the reverse position.

    Also, if that were the problem, I would think u could experiment by putting the gear in neutral position. Then see if motor shuts off when engaging Pto.
    http://www.ohr.edu/838
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  7. #17
    Elite Member
    Join Date
    Jul 2006
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    4,409
    Location
    Northwest, WA

    Default Re: Engaging the PTO shuts the mower off

    Quote Originally Posted by MandySue View Post
    but when i engage the PTO it shuts the mower off.
    Quote Originally Posted by MandySue View Post
    unless i unengage the blades quickly and the mower will keep running
    Do you think it's being shut down electrically (like turning the key off) or physically (like something mechanical stopping the engine) ?
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  8. #18
    Elite Member Don87's Avatar
    Join Date
    May 2010
    Posts
    4,226
    Location
    SW Pa.
    Tractor
    Massey Ferguson GC2400

    Default Re: Engaging the PTO shuts the mower off

    What make of tractor are we discussing?
    Don

    MF GC2400, FEL, 60in.MMM, 5ft. Cultivator, Single Bottom Plow, Bush Hog RTC48 tiller, MF 2360 front mount snowblower, 5ft backblade. BXpanded Piranha toothbar.

  9. #19
    New Member
    Join Date
    Sep 2012
    Posts
    1
    Location
    marshall, tx
    Tractor
    08 0 turn

    Default Re: Engaging the PTO shuts the mower off

    My zero turn lawnmower did the same thing today!. I put the PTO down and it died, I started all over again and put down the brake and it died. I will look tomorrow on the deck to see if a bunch of grass is clogging it up. A friend put on a new spring said mine was to short and put on a longer one. I am not sure if that is the problem or not. It makes noises when I engage the PTO. Last time I took it to John Deere, they wanted $1700. said it was out of warranty. It had 11 hours on it and they worked on it and put 2 more. All the oil was drained out not covered under warranty. Becareful and check you oil when leaving the dealership. I am not going back, I rather listen to you men. Yes I am a lady. So never let your wife go to a dealership.

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