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80 PTO Clutch Adjustment-How?

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Brandon

01-04-2003 19:49:14




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I'll start off by saying that I have the Service Manual, Operators Manual, and the parts book, yet they don't help much! While browsing through the Operator's manual AND Service manual, I noticed some contradictory instructions. The text says turning the adjusting cam counter clockwise (view from rear) will tighten the clutch. However, the accompanying illustration shows that to tighten, you have to turn it clockwise! And there is the fact that the description says that "tightening" will INCREASE the clearance, and "loosening" will decrease the clearance! This makes absolutely no sense at all! You can see the instructions at:

Link

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Clooney

01-05-2003 04:51:40




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 Re: 80 PTO Clutch Adjustment-How? in reply to Brandon, 01-04-2003 19:49:14  
Brandon, your text matches mine but the direction of adjusting cam rotation doesn't. I have the same drawing but the tighten direction is shown as down on mine. You basically turn the cam notches down on the 80 to tighten the clutch [you need to increase the thickness {length} of the cam & hub assembly to tighten the clutch]
~I think what they are talking about on the "increase the clearance" is the brake clearance. It increases with clutch tightness.

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cole in mo.

01-05-2003 00:42:00




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 Re: 80 PTO Clutch Adjustment-How? in reply to Brandon, 01-04-2003 19:49:14  
brandon, turning the adj. cam COUNTER clock wise is the way to go, like the book says, adjust one notch at a time untill you have 090 gap. that part about tighting will increase the clearnce, and loosening will decrease the clearence just means that if you have less than 090 gap, tighten the cam. if more that 090 loosen the cam. the 090 gap gives the correct pressure on the plates when ingaged,and proper clearence when disingaged. it is important not to over tighten the cam, too much pressure can push the snap ring off the end of the shaft or ruin the shaft. also be sure to adjust the pto stop. its pretty straight forward once you have done it. hope this helps ya some.

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Steve - IN

01-04-2003 22:27:18




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 Re: 80 PTO Clutch Adjustment-How? in reply to Brandon, 01-04-2003 19:49:14  
Brandon,

Was impressed with your 80 mpeg. Very good!

I'd guess that CCW vs. CW is a matter of perspective or whose ashes are getting hauled. I'd go with the up/down direction shown in the drawing and figure the text is a matter of perspective.

Steve



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