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#12
08-24-2011, 04:25 PM
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Stock pulley was trashed - it had an OD of 6.5". This one is 7" but the belt rides deep in the groove so it's close enough. Problem is I had to use a 34" belt instead of the stock 33", and I'm about out of adjustment. If the belt stretches any more I'll have to figure out a plan B. Oh I got pretty good at pulling the motor with a come along and two tie down straps since I had to do it three times...
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#13
08-24-2011, 09:52 PM
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I just found this thread.....wish I had earlier. I have a rockshaft set up for an electric lift in my 123 with a hydraulic lift on it. I did not have to cut mine at all, I just used 1 1/2" spacers instead of the 3/4" ones, which tightened up my pulley belt (which I believe may have been the incorrect belt) and works just fine. I do not like to cut into original parts, unless it is absolutely necessary, so I was able to work something out to solve the problem.
Well, its a moot point because you have yours installed and operational now. Your tractor looks very nice and your installation looks well done!! Cub Cadet 123
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Still don't know what I'm doing in OHIO?.....If you find me, then please point me back toward INDIANA. 
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#14
08-26-2011, 11:49 AM
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My rockshaft was a little different than yours - I have read elsewhere that there were at least five different versions of these things, with the dimension shown in my first post being the difference between them.
For mine, I would have needed 2-1/4" spacers to make it work, and that would have been a real ankle smasher, so I chose to make it "correct" by modifying the tab on the rockshaft to be the correct width. I don't like cutting into parts like frames, fenders, hoods, etc., but I have no problem modifying a rockshaft. I may actually change to 1" spacers instead of the 3/4" ones to gain a little bit of belt tension adjustment with the 34" belt.
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#15
09-06-2011, 06:00 PM
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Well I finally had a chance to really put the new lift to the test... After about 1.5 hours of mowing, the belt had stretched a LOT and even twisted around a bunch, plus the input shaft seal started leaking...
Back to the drawing board, but at least it looks nice. 
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#17
09-07-2011, 08:35 AM
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Do you still have the orginal pulley? If that was actually under 7 inches it was for an original tractor. I was told the the orignals used a smaller pulley then the later pumps. Rare pulley!!
By the way nice looking tractor!!!!
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#18
09-07-2011, 11:04 AM
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Yeah, I think the pulley definitely has a lot to do with the belt problem - I'm looking at getting a 6.5" browing pulley and a 1/2" split taper bushing.
The pulley it came with was pretty much exactly 6.5" on the OD. I tossed it - it was bent such that it would wobble when spun, but the biggest problem was that one edge was smashed in pretty bad such that it would squish the belt. I tried to fix it but just made it worse... How big is the pulley supposed to be for a NF? The 7" one on there now barely fits - any bigger and it would rub the PTO release rod.
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#19
09-07-2011, 11:50 AM
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Can a pulley that wobbles be fixed? I ask this is because the pulley on my Hydro lift has a wobble in it as well.
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Dale 147-Restored___________________882 Diesel Hydro lift (not installed)___________44" Deck 48" Deck_______________________QA-42a/b Snowthrower Rear lift ________________________XMW cat-0 rear lift Model 2 tiller____________________12" cat-0 Brinly plow
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.
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