Question about Craftsman Riding Mowers & Garden Tractors

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Both forward and reverse speed are decreasing

Sears lawn tractor model # 917.256552 . The tractor is ten plus years old. The engine runs fine and still easily runs at top RPM, but forward and reverse speed has dropped off significantly.

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  • hilliard_hal Nov 27, 2008

    Thanks for the input. I will put a new belt in the old gal right after Thanksgiving and post the results



    Ron

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Hi, check the main drive belt, the belt is stretched out. you need too replace the main drive belt.

If this doesn’t work for you, please write back. Thanks,

Posted on Nov 23, 2008

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I have a craftsman 24 hp 54 " tractor with a automatic transmission and its about 8 years old. It was running and moving fine when i put it away for the winter and had no problems. When I took it out...


Hello, It is not likely the belt. The only thing you can do is do a purge and see if that helps.

Doing a purge is really easy:

  1. put transmission in the freewheel mode so you can push it, ensuring that it is on a flat surface
  2. start engine and run full throttle
  3. release clutch brake
  4. push the drive pedal or lever to the full forward position for a ten count
  5. push the drive pedal or lever to the full reverse position for a ten count
  6. repeat steps 4 & 5 three times
  7. depress & lock the clutch brake
  8. return the transmission to the normal mode
  9. drive tractor
If this fails to correct the problem you may need to replace the transaxle.

If you find this helpful please vote yes. Thank You!!

May 03, 2011 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

17.5 hp 42" deck Sears tractor. Parked it in the shed after last mowing, everything was fine. Went to mow yesterday and tractor will not drive plus I have no brake....what happened? Belts are fine, gear...


If the engine is running normally and your drive belt is fine then the input to the transmission is OK you just have no power output from the transmission. Usually those transmissions give you some signs of failure such as won't go up inclines or the top speed is a bit low. What I would do is first check the linkage from the forward/reverse lever to make sure it is moving a corresponding shaft on the transmission itself. If that is good then I would check the fluid level on the transmission itself. This could well require removing it from the tractor. Often the brake pedal is connected to a small disc on the transmission. While you are checking the shifter input to the transmission, you may want to follow the brake pedal rod back and see if anything is broken or disconnected.

Aug 03, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

Lawn tractor forward movement problem


Check the adjustment from the lever to the transaxle, if the linkage is ok the transaxle may be suffering from age and has leaking internal seals.

Jun 03, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have been losing forward speed over the last 2 weeks, When I press the forward pedal the mower goes very slowly. My engine is working fine.


The automatic transaxle is driven off a belt that runs from the engine to the top of the transaxle, make sure this belt is not slipping and also ensure the neutral rod in the rear of the tractor is pushed all the way in.

May 24, 2010 | Craftsman 42 in. Precision Cut Plus 24hp...

1 Answer

Sears lawn tractor. While mowing, ran over a


the branch probably got cought in the belt that runs the rearend it may have caused it to come off check the drive belt

Jun 06, 2009 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

I have a DYT400 with a Briggs and Straton Intek plus 19.5 ovh. When I move the speed lever to full speed, the mower wants to choke out. Also, when I put the lever on stop, it just keeps running. the...


You have governor with a missing spring or it could be in the wrong place. If the springs are all OK then you may have a bad governor gear in the crankcase. This engine is bad about the governor gears bending the governor gear shaft.

Apr 25, 2009 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

Loss of drive in a Craftsman Lawn tractor


I also have a Craftsman tractor with the same problem. Sears repairman said it needed a new transmission and it would cost $1,400 to install. A new one is about $1,000. Anyway, if you remove the battery and the battery tray under the seat it will expose the transmission fill hole (hex). I opened the top and it looked empty. I had a bottle of 90 weight gear oil in my shop and filled the transmission to the top. I have not had any problems with it since. $4.00 bottle of oil verses a new tractor is worth a try.

Mar 30, 2009 | Craftsman Riding Mowers & Garden Tractors

1 Answer

Sears 19 hp twin 42 inch tractor, won't start if hot


Hi
Two things come to mind. First it could be not getting enough fuel when hot due to carb adjustment being too lean. That could be that the float level in the carb is set too low or the low speed jet is set too lean. When cold the choke circuit in the carb supplies the extra fuel required.
Second in some enjines that have low compression they start cold but when hot the compression drops below 60 psi and makes starting very difficult until engine cools down.
I suspect a fuel problem.

Nov 25, 2008 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

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