54" Cub Cadet deck leaves strip of grass since I replaced the spindal

Engine cutoff when PTO switched to ON is an operator not in seat state. Check operation of seat switch.

Either not enough engine speed, grass is too wet or to thick or you need a hi lift blade to cause more wind in deck. This is if deck has not been damaged s.a. inner guides bent or removed.

If you have mowed when the grass was wet or moist you may have a build up of grass under the deck. This is the cause of that type of problem in most cases. Cleaning the build up under the deck allows the grass to flow the way its designed and will also extend the life of the blades. Hope this helps.

Hi Diana:
I'd suggest that you pull the spark plug lead so it does not accidently start, and then try this.
Place the mower at a height where you can easily see under it. I use the tailgate of my pickup trucl.
If you put the handle inside the bed of the truck you can put a weight on the handle so the deck is tipped up. With the spark plug disconnected (or even removed) rotate the blade. Chances are that the knocking sound will be from the blade hitting the deck. It is possible that the bolts keep breaking because the blade is not seating properly.
I'm guessing that once you can see under the mower you will find the problem.

just replaced mine. just the stamped metal stripped from the dealer is $350. the pulley bearings are aluminum installed with steel bolts, so you have to either bu new ones ($100 each or snap the bolts and drill and tap each one. it is a labor intensive job, or you can buy one ready to install from dealer for somewhere around $700. try advertising on craigs list for a used one. you may luck out. good luck.

check for missing pressure spring go to PartsTreeRepairClinic they may have a video

do you have the right blades for bagging ?is the deck belt slipping?

I had the same. design of the deck is not good. grass will build up and insolate (like a donut) the blade from cutting the immediate blades. FIX - replace custom blades with "Gator Blades and the claws will free up the cluster of interferances of grass, kick it out, thus allowing the blade free space to cut the immediates blades of grass.

Hope this helps as it was my last trial of fixes. IT DOES WORK.

J THOMAS

Try this one. It may have what you're looking for. Without your model #, I don't know.... http://www.partstree.com/parts/ Click on Cub Cadet then enter you model # on the left.