Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

1 Answer

The mower starts, runs fine with brake depressed. When put in gear or blades activated stalls out. Possibly grounding itself out. where do I look either a short or problem?

Posted by on

  • vbks4597 Jun 05, 2010

    With the seat switch disconnected, is there supposed to be a "hot" point to test to verify power coming in to the switch. We used a circuit tester, but both points appear cold. We tried to trace the hot wire but no apparent cuts, crimps, etc. Is there a procedure to test the seat switch, i.e., bypassing that we are missing.

  • vbks4597 Jun 05, 2010

    its fixed!! it was the seat switch. For some reason even when sitting on the seat full contact wasn't being made. Manually depressed the switch all systems worked, as designed. We put a small screw in the plate to improve the level of depression of the switch. Lawn is now mowed...front.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 146 Answers

This is a symptom of the seat safety switch not working. Tilt up the seat, check the connection to the switch and also check the wires (pinched, broken?). The switch could be bad, or the mounting could have broken.

Posted on Jun 04, 2010


1 Suggested Answer

  • 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


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Why does my riding mower die when put in gear or engage the blades

Check out the grass box safety switch. if not fully depressed it will apply brakes to the blades when in gear. Most mowers are designed with a safety switch to stop the blades, or forward motion if the grass box is not fitted correctly.

Aug 23, 2015 | Garden

1 Answer

JD 110 tractor stalls when put in gear

Sound like a safety switch has gone bad. Either the clutch or seat switch are bad.

Mar 24, 2017 | Garden

1 Answer

Scotts 1642h riding mower Ignition Switch, Seat Switch or Wiring Problem?

Will run with no one in seat if clutch is depressed but will not run with clutch depressed and blade engaged with no one in seat. Could be your pto safety switch is bad. Maybe battery new but not charged try charging with 2 amp charger overnight and see if that helps. Maybe diode in charging circuit bad.

Sep 07, 2017 | Craftsman Garden

1 Answer

I have a craftsman 917.287030 and it will not stay running. i put it in gear and it stalls. any ideas??

Check the seat safety switch. For example, start the mower and then engage the blades. If the seat safety switch is faulty, then it will die. Same thing with putting it in gear and releasing the brake.

I hope this is helpful for you.

Aug 22, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have the Craftsman 20.5 Model 944.609800 42 in mower I can get it to run but when i put it in gear or take my foot off the brake it stalls it also stalls when i engage the mower blades can you help i...

I agree it is the seat switch. This switch will let you start the mower as long as it is in neutral, the brake is set and the mower blades are not engaged. I think it is just two wires, maybe you can jump them together and see if it runs.

Aug 06, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

2 Answers

I have a Toro SS4235 with a 20 hp Kawasaki motor. Motor starts well, but when putting it into gear for forward or reverse, motor will die. One or more shutdowns must not be activated??? Occasionally it...

Hi gedallyn,
You mentioned that every time you gear forward or reverse the Mower's motor will just die.
I believe that you will need to check your gears and the also check to see the if the system is Running low in Fuel or possibly having a clog in the fuel line that can cause the machine to stop.
But still the issue is when you get it to gear forward or reverse, you may wanna check the gears first since that is the closes to your concern.
You can also check online at Toro for a user guide and info regarding you issue with this Link
I hope this help.
Have a nice day,

Jun 09, 2011 | Toro 42 In Deck 19 Hp Kohler Courage Twin...

1 Answer

My lawn mower will start easily and continue running as long as the clutch brake is depressed but when I lift the clutch or try to engage the blades while the clutch is depressed the mower will stall.

This is a shot in the dark. I think you have a failed "operator presence safety switch". Rule this out by finding the switch and jumping it.

Your mower should run with no one in the seat IF THE PARKING BRAKE IS SET.

If the brake is released and no one is on it, it should shut off.

If you are on it and the brake is released you should be able to engage the blades (probably an electric clutch)

Purpose of this interlock is the shut the machine OFF should you fall off or jump off the machine. Do not disable this valuable safety feature.

Let me know what you find.

Thanks for your question @

May 15, 2011 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

Starts fine,idles fine,stalls when put in gear to drive away

Try depressing slightly the gas pedal to see if the engine continues to run when you put it in gear. Might have to depredd gas pedal and brake simultaniusly. if the engine continues to run, then the problem is in the idle circuit. Try decarboning the throttle body and the idle speed control.

Mar 26, 2010 | 1989 Honda Accord 4 Door

2 Answers

Engine stalls when clutch/brake pedal is released

Under the seat, there is a operator presence switch, if this switch fails, the mower will shut off when the brake is released, or put in any gear.

Apr 21, 2009 | Garden

Not finding what you are looking for?
Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model Logo

131 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