Posted by riverbend on April 08, 2012 at 18:21:21 from (74.46.187.87):
In Reply to: 350 T/A clutch update posted by riverbend on April 08, 2012 at 06:23:31:
I didn't know what else to do, so I took a few measurements today. Looking at the results, I am suspicious that the T/A clutch is slipping and getting hot. I didn't measure the temperature, but the T/A pressure plate didn't have as much clearance after using the tractor.
After sitting for a day: PP lift with T/A lever - 0.065" PP lift with main clutch pedal - 0.02" T/A lever moves the top of the T/A throwout bearing crossshaft arm - 7/16" Clutch pedal moves top of crossshaft arm - 1/4" T/A Clutch disk thickness - 0.323" Distance between pressure plate cover and PP friction surface boss - 0.01" Clutch pedal travel when pressing on throwout bearings 1 1/4" - 4 1/4" (measured at the deck) Clutch pedal linkage movement - 3/4"
Last night when the tractor had been warmed up: T/A PP lift with the T/A lever - 0.04" PP lift with clutch pedal - <0.0015"
Tonight I made a mark on the presure plate and the clutch disk so I can see if they are slipping in direct drive. If they are slipping I think the shims need to be thinner.
If anyone has a 300 or a 350 (I think the SHTAs are the same too...) with a working T/A it would be helpful to know if your measurements are in the same range.
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