What holds the upper roller drive sprocket on NH488?

Jason S.

Well-known Member
The drive sprocket that runs the upper roller on my New Holland 488 came off yesterday. I"ve studied the parts book and can"t find anything. It"s #24 in the parts book. There is no set screws in the sprocket,just a key way and that"s it. I know the lower roller has a flange that the sprocket on it bolts too so you can change the timing but I see nothing for the top one. I thought about putting it back on and just tacking it in place.
 
Oh...thank you. Oddly it shows up in the parts list for a 488 but it does not show or have a number in the parts illustration. Now I have to figure out a way to fix it today so I can finish mowing. The closest NH dealer is about 30 miles from me. Once again thank you
 

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