Blade alignment - Page 2

Sam Mac · #11 03-08-2015, 06:15 PM

Cub had this thing called a "Cub Cadet" built back in the early 60's with a timed deck that worked like a dream. They improved the newer style so that it doesn't work, need I say more.

wildbear · #12 03-09-2015, 10:51 AM

I want to thank everyone for the suggestions. I've been working and no time yet to check it out. Today I will tear into it and check they keys and let you know later what I find. Again, thanks.

wildbear · #13 03-09-2015, 03:37 PM

Well, I just had to take one pulley off and found that there is no key. The shaft, as shown in the photos is multi-sided (splines) and the pulley has the same design to fit over the shaft, but the pulley could have been designed a little thicker to grab more of the shaft. I just ordered a new pulley, $17.95. The shaft is still in excellent condition. Again, I want to thank everyone for all their responses.

wildbear · #14 03-09-2015, 03:42 PM

On my 42 inch cut Cadet, I don't know about others, but the blades over lap by one inch, this why it has to be in time so they don't hit each other.

BassBlaster · #15 03-09-2015, 06:54 PM

Yeah, I understand timing, maybe I just don't understand how it works. I just cant figure out why the marks on the pullies matter if you put the blades where they need to be. Line one up or the other. Unless the blades align with the marks on the pullies, you will never get them both aligned. Or maybe they do and they are slipping like others have suggested and I just completely misunderstood your question.

wildbear · #16 03-09-2015, 09:52 PM

Well, the timing is important especially if the blades have to clear each other, but in some models where the blades overlap by one inch, as with mine, timing is paramount so they don't make contact while rotating. What happened with mine was that the pulley with the damage was always out of time since it slipped a few teeth. The new pulley will fix that.

jcsmith · #17 03-13-2015, 05:06 PM

I'm thinking the aligned pulleys should tell you the blade position without looking underneath , if everything is lined up properly.

Chris

Sam Mac · #18 03-13-2015, 05:22 PM

My guess is the bore on his pulley wore and it slipped thus throwing off the alignment marks. The timed decks need to have the blades 90 degrees from each other just like the 38" decks on the Originals.

Tom Brewer · #19 04-02-2015, 07:16 PM

From your photos both of your blades are indexed correctly to the pulleys in all four shots, that being said, look for either missing teeth on the belt or lastly where the belt connects to the blade shaft. It's most likely the belt due to the fact it's the softest material.

Tom B. "the onion"

ol'George · #20 04-02-2015, 08:31 PM

Quote:

Originally Posted by Tom Brewer

From your photos both of your blades are indexed correctly to the pulleys in all four shots, that being said, look for either missing teeth on the belt or lastly where the belt connects to the blade shaft. It's most likely the belt due to the fact it's the softest material.

Tom B. "the onion"

If I understand him correctly, post #6 shows the pulley(s) is damaged in the spline area allowing the blades/shafts to turn independently of the pulleys, thus the "timing" orientation is lost when powered up and they slip.
Pulley replacement will cure that.