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#1
05-21-2015, 01:40 PM
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Belt slippage
Pardon me if this has been
 Running the 147 w/ 48" mowing deck yesterday and the mower kept slowing down in the thick stuff. No heavy change in engine speed. The PTO has been rebuilt 3 years ago. (still using the OEM mechanical one) I suspect the drive belt from engine to mower is slipping. It has a cheap green belt on it that was on it when I bought it. Do these tend to slip more from the drive belt or from the mower/spindle belt? Thanks
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Daniel G.  . (May 1970) 147 w/an IH spring assist, 48" deck, 42" blade, 1969 73, #2 trailer, 10" Brinly plow and (on loan) Dad's #2 tiller. 
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#2
05-21-2015, 02:11 PM
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Did you double check to see the 'V' was notched in the pulleys all the way thru? that got me the other day and I had similar symptoms. I had a slight twist in the belt.
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- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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#4
05-21-2015, 04:21 PM
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Is your mule drive set to apply enough tension?
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-Ryan
 
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#5
05-21-2015, 05:24 PM
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I just took care of this issue on my dads 147. If your belt is the right length ( not rubbing the PTO rockshaft etc. and its putting tension on the spring) take it to NAPA and ask for a deep V belt that length, it should cure any slipping and it will keep the belt from rolling over in the pulleys.
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149 with kwik-way loader,1772,two 1782 super smokers, 982 SGT w 54" haban blade,60" haban deck, 50in deck cat 0 3 point, brinly cat 0: blade, plow(3), disc.123,hydro lift. 61"O" Brinly single row planter,brinly cultivator,#2 trailer,brinly 10 inch plow,3 42 inch blades,Model #1 Tiller with extenstions,haban sickle mo. 106w/ags and hydro lift. 
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#6
05-23-2015, 08:58 AM
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My mule drive is stupid. It doesn't have a spring. It has both pulleys welded and wing nut adjusters on the front. I'm thinking I have a POS belt that is too long and too narrow.
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Daniel G. . (May 1970) 147 w/an IH spring assist, 48" deck, 42" blade, 1969 73, #2 trailer, 10" Brinly plow and (on loan) Dad's #2 tiller.
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#7
05-23-2015, 11:20 AM
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The belt chart on this site says to use a 3/8 belt for this application, but last time I went to Napa they didn't have what length I needed in 3/8 but they did in 1/2. I bought the 1/2, and it actually seems to work better than what I had before.
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Ian Mine: 72 w/ k301, 3 125's, 1 w/ hydro lift, 38,42, & 2 48 decks, 2 42 front blades, QA-36a & QA-42a thrower, tiller, lo-boy 154. Also, LOTS of parts. family's:2 105's, 2 106's, 149, 2 lo-boy 154s, Farmall Cub. Non-IH: 1940 JD Model A, 1954 JD 40 U, 1955 JD 40 Crawler, 2 1956 JD 420 U's, both w/ Henry Loader and Backhoe. JD 110. Wheel Horse (model unknown.) Power King 1614. We love our tractors! 
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#8
05-29-2015, 02:21 PM
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I have the CC 760 & I need to have the blades going then go in slow to attack the grass. If I run the blades then go right in, the blades slow down alot but not as bad as when I run it & go into the grass slow. It's as if the belt is slipping.
I just ordered a new drive belt. It calls for a 72 1/2 inch v notch belt, I just ordered a 72 inch. Let's see if that fixes the problem. Anyone else have any issues or fixes for the CC 760?
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