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

1 Answer

Blades won,t disengage

When I disengaage blades they do not stop. When I start the mower, the blades rotate immediatly wether I engage lever or not

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  • Andy Harris Jul 14, 2013

    Lubrication helped. Found the idler arm with a notch worn into it. Ground smooth and it is a little better. Looks like it's time for new parts.

  • Rick Jul 15, 2013

    Andy when you do put the new parts in you may want to put anti seize on all of the contact parts to slow down the rust build up. I've found that helps alot.

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  • 61 Answers

Assuming this is a lever actuated deck (not electric p.t.o style) I would be checking the belt pivot tensioner assembly which the cable would be hooking to a lot of times moisture will get between the pivot and the deck and rust up not allowing the heavy return spring to slide the pivot back removing the tension from the belt. If you spray the pivot with a good lubricant and hand work the pivot tensioner back and forth it should loosen up. Usually it's the other way around and the 1st time of the year you use it you can't get it to engage.

Posted on Jul 13, 2013

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Posted on Jan 02, 2017

  • 2239 Answers

SOURCE: blade engagement lever won't disengage

If this is a manual engagment system all the lever does is to pull a jockey wheel into the back of the belt to tention it thus starting the blades to turn, so either the cable is jammed that pulls the jockey wheel in, or the jockey wheel arm is seized and needs freeing off to allow the jockey to to move to the relaxed position.

Posted on Jun 24, 2012

  • 57 Answers

SOURCE: Craftsman 42" mower deck won't disengage

Try pulling on the cable coming down to deck. This cable might be your problem. Also check that the spring on the end of this cable is present and functional.

Posted on May 19, 2009

braintrust
  • 62 Answers

SOURCE: after replacing the belt, new pulleys, and bolts,

sounds like the linkage to your blades, check your lever, to make sure its working right may need some grease, it may be sticking and not fully engaging, or doing its job when its supposed to

Posted on Oct 27, 2009

  • 146 Answers

SOURCE: I cannot disengage the cutting attachment so that

You haven't specified the model number, but pretty much all riding mowers use a plunger-type electrical switch to engage the mower. If it's stuck in the 'lifted' position (mower engaged) then it has broken internally. You must replace it. In doing that, the wires need to be placed back on the correct terminals, so take a picture of the wires (showing their colors) before you disconnect them from the switch. Take the broken switch to a lawnmower shop to find a replacement. Shouldn't be more than $10 - $20. Good luck! Please rate my solution if you found it helpful.

Posted on Jul 04, 2010

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If you have an electric PTO this does not apply to you.
After confirming that your blades are tight check the operation of the PTO cable and the pivot bracket by lowering the deck all the way. Laying on the ground on the discharge side of the mower you will be able to look at the components and see and touch whats not moving freely as you engage and disengage the PTO lever. Look for a stiff PTO cable, stiff pivot bracket, missing return spring, broken spindle brackets and broken deck bracket welds.
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Blade engagement lever won't disengage


If this is a manual engagment system all the lever does is to pull a jockey wheel into the back of the belt to tention it thus starting the blades to turn, so either the cable is jammed that pulls the jockey wheel in, or the jockey wheel arm is seized and needs freeing off to allow the jockey to to move to the relaxed position.

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If your blades won't engage when you raise the lever to engage them AND that lever moves freely without the normally expected resistance, then you've lost the cotter pin that connects the lever rod to the mower deck assembly. Very easy fix! Using the mower deck raise/lower lever, lower the mower deck to "down" position. Now, lay on your side along the right side of the mower and look up (use a flashlight) under the mower at the top of the mower deck while moving the blade engagement lever "up" (which pushes the connected rod down). At the end of the rod, you will see a hole where the mower deck and rod connect. Align the hole at the end of the rod with the matching "pin" on the mower deck (you'll see it) and insert a new cotter pin to secure them together. Use a nail if you don't have a cotter pin. Voila! you are done. The blade engagement lever will now engage/disengage your mower blades successfully. Just remember that mower deck must be down, or lowered, before you engage the blades!

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1 Answer

I cannot disengage the cutting attachment so that the mower will start; it seems like it is stuck, because when I attempt to disengage the blades the lever will not move into the disengaged position. How...


You haven't specified the model number, but pretty much all riding mowers use a plunger-type electrical switch to engage the mower. If it's stuck in the 'lifted' position (mower engaged) then it has broken internally. You must replace it. In doing that, the wires need to be placed back on the correct terminals, so take a picture of the wires (showing their colors) before you disconnect them from the switch. Take the broken switch to a lawnmower shop to find a replacement. Shouldn't be more than $10 - $20. Good luck! Please rate my solution if you found it helpful.

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After replacing the belt, new pulleys, and bolts, my mower wont disengage the blades when i disengage the lever. when i start the mower, the blades are off, but once i engage the lever, they start, but...


sounds like the linkage to your blades, check your lever, to make sure its working right may need some grease, it may be sticking and not fully engaging, or doing its job when its supposed to

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SOUNDS LIKE THE CABEL IS BAD IF IT HAS ONE OR THE ENGAGEMENT IS BENT

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This is too late, but for the next person: There is an extension spring around the cable attached to the blade engage/disengage lever.

On my tractor one end of the spring had the hook broken off or it. Because it is around the cable it is still in place but doesn't stretch when you engage the blade (so can't pull the pulley out and slacken the belt when you disengage).

The replacement is a few dollars and can be bought on ebay or Amazon.

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