Question about Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

The mower runs fine till you engage the blades then it goes dead

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,740 Answers

Hi and welcome to FixYa, I am Kelly. Take a look at the pedal switch wiring. Also check the foot switch to make sure it is NOT grounding when you ease the pedal to it's normal resting position. This is the most common problem however..... Underneath in the clutch area make sure that the clutch wires are not grounded. There is a diode in the PTO clutch and if the diode fails it will present this symptom. Read the Black to Purple stripe wire on the clutch in BOTH directions. One way it should read open the other way it should read like a wire. Most of the time it the blade is engaging and the mower dies it is either the foot switch or a wire in the PTO Clutch area that is grounded.

Thanks for choosing FixYa,

Posted on Apr 07, 2011

  • Kelly
    Kelly Apr 09, 2011

    I responded without being provided a model number. If you can locate or provide both a mower model number and an engine number I can locate diagrams to help you. Without a model number it forces me to respond in generic form that does not always result in a customer fixing the problem. From the rating it appears you still have the problem.

  • Kelly
    Kelly Apr 09, 2011

    When you say it goes dead... dead as in like you switched off the ignition or like it is not getting enough fuel? I am just guessing that this is an LT2000 model mower with a model number of 917.276813

    Using this Diagram:

    2 things have to happen to get blade engaement and the engine running.

    1. The seat must be occupied

    2. The clutch brake pedal must be up.

    Power is routed from terminal M on the ignition switch to the black wire (in) on the pedal switch and the Gray wire (out) of the pedal switch. From there it goes to the gray wires on the seat switch (in & out) and then on to ground.

    To get blade engagement you must have Power to the black wires of the clutch (in and out) and Black to black on the seat switch with the sear occupied. The black wire OUT of the seat switch is a ground.

    ANY ground on the black wire coming from M on the ignition switch will kill the ignition. That ground can come from any of the following places. Pedal Switch, Blade clutch, or the seat swtich or the connecting wires to any of the swtiches.




2 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 18 Answers

SOURCE: mower boggs down when blades are engaged

If all pulleys are turning (not bound up) check for belt route misalignment.

Posted on Jun 06, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Mower won't start unless solenoid is arced

If it acts like the blades are engaged, try tracing the wires to see where they are shorted out, start by disconnecting the wires from the switch. You may need a new switch

May 08, 2016 | Light Garden

1 Answer

My john deere keeps shutting down when I try to engage the mower blades.

well first off be sure the throttle is all the way up secondly check to be sure the blads turn freely could be the belt is pinched or off one of the pullies and causeing to much friction for the motor to turn it

May 04, 2014 | John Deere Garden

1 Answer

Have a 1540 zero turn. runs fine till you engage the electric clutch to mow.backfires and won't run right. runs fine when you shut of mower blade drive

the electric clutch sometimes jumps of the steel retention dowl. That then pulls the wires and stops the motor. You will need to remove the clutch and reposition it over the dowl. You will also need to re-fit the electric connections. Watch out for the fuse as this will often blow.

Sep 04, 2013 | Ariens Garden

1 Answer

Husqvarna pto problem(?) disengaged blades to travel, would not engage after. Battery dead when checked after shutting off engine and wouldn't restart

Hi, first charge or replace the battery if necessary then check that the mower is charging the battery. The pto is probably fine but it needs battery voltage to engage. If the mower has stopped charging the battery may have had enough voltage to hold the pto in until you disengaged it but not enough to re engage it. Regards Phil.

Sep 06, 2012 | Garden

1 Answer

Electric blade clutch won't work and battery went dead

If you have a new battery and it went dead that quickly I would check the charging system on the mower engine. Many of them use a voltage regulator and if it goes bad it will not properly charge the battery. Get the engine running (do not engage the PTO) and use a multimeter set on DC voltage. Place the multimeter leads on the battery and you should see approximately 13-14 volts DC at the battery terminals when it is running. If less then that then it's a problem with the charging system and further tests would be needed to figure out if it is a bad regulator or charging coil.

Aug 23, 2012 | Husqvarna Garden

2 Answers

Craftsman ZTS 7500 dies when engage blades or when engage transmission

check the "kill switch" they are usually located in the seating area. it senses for pressure or seat angle and will kill the mower if nobody is sitting on the mower. Good Luck

Apr 17, 2012 | Craftsman Garden

1 Answer

Mower boggs down when blades are engaged

If all pulleys are turning (not bound up) check for belt route misalignment.

Jun 06, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Stalls when engage blades in forward, but cuts fine in reverse

Did you try to disengage the safety feature that should shut the tractor off when the blades are engaged and the tractor is placed in reverse? I believe that it is located under the shift leaver

May 14, 2009 | Mtd Garden

Not finding what you are looking for?
Craftsman 42 in. Deck 19.5hp Lawn Tractor Logo

563 people viewed this question

Ask a Question

Usually answered in minutes!

Top Craftsman Garden Experts

Wade Mobley
Wade Mobley

Level 3 Expert

489 Answers

Dean Gruber

Level 2 Expert

110 Answers

Roland W VanLue
Roland W VanLue

Level 3 Expert

486 Answers

Are you a Craftsman Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides