Diagram b linkagelade engagement handle

1 cable goes to the deadman's handle to a silver spring loaded lever on the mower that the spring is stretched when handle is against upper mower handle. The other cable if equipped goes to carb for speed control.

Sounds like the linkage spring is not working correctly or was never replaced during rebuild. I would replace that spring as a starting point.

The belt diagram should be under the left foot board of chassis. If laying on ground looking upward at chassis left rest do you see the diagram ? The belt shouldn't be touching the guides but only touch the guides when there is a problem or sometimes very gently while engage the blades. The belt will be a little loose while the blades are not engaged so the "always spinning" Engine "pulley" wont burn through the belt ( you hear it squeal when you engage blades) That is the pulley and belt suddenly greeting each other.

Only problems that come to mind are rather obvious ones. My first guess would be a broken HST belt- the one from the engine to transmission- OR part of that belt assembly (idler pulley, slipped off a pulley, broken tension spring). Another possibility would be the pedal linkage. Maybe a pin fell out of that somewhere and the linkage isn't engaging the transmission.

contact Sears Parts Direct .com they can help you may be able to download a manual

First make sure you can still engage the blades.Many mowers use a cable attached to a spring to engage the blades.If that is one of the springs,you need a new cable.For the other I will need more information,like what kind of mower is it?How many blades?Another thing to look for is worn or torn holes that the springs attach to.

I do not have a diagram,but I do know where it goes.Look at the tension pulley.The arm it is mounted on move.That arm is where the spring belongs.First move the arm with your hand.pull it so that the blades are not engaged.Now the side of the arm away from the pulley and closest to the rear of the mower,is where the spring goes.There may be several holes,do not pull the spring too much,just get it in one of those holes.Then try the blades.If they do not engage,move the spring,to another hole.

Looking at the following parts diagram:

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%20W10157992.pdf

You can see the linkage on page 6. Turning the crank handle #22 counter clockwise rotates the link #18, which is attached, which pulls on the rod #11. There is a spring clip #10 on the rod which sometimes comes off making the linkage bind. Make sure it is in place by turning the mixer on its side and looking up inside the base.

If it is in place then spray a small amount of lubricant on the linkage to lubricate all of the moving parts.

Also put a small amount of lubricant on the sliding member #7 where it slides against the stand section #15.

Note: Don't try to move the crank lever when the mixer is on its side since it will bind. It requires gravity to pull the sliding part down, and with it on its side the sliding part will not move downward thus binding up the linkage.

if the Linkage has come off, it will be very limp...Or there is a spring that connects the linkage to the lever, the spring could have broken. This can be a pretty common problem, I have had it happen a few times myself.

Remove the housing with the machine off

The idler pulley is designed to push up against the outside of the belt between the drive and motor pulleys when disegaged the belt should look like a loop like a race track

engage the blade clutch and watch to see if it presses up against the drive pully and the motor pulley

their should be a spring attached to the idler arm and i believe the new belt is dragging a little

you should be able to move the belt with your hands ( it should slip freely) rod is engaged or it pulls the idler away

Either a spring causes tension when the rod is engaged or it pulls the idler away

Keep working with it until it is free you may have an adjustment on the spring tension or the linkage rod has an adjustment

I am sure you can do this without an diagram good luck