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Lapel, In | Place the selector lever in "D". Raise the rockshaft all the way up. Then lift (by hand) one of the arms to see it it is fully raised. If not,adjust the cable or rod so it is. Step #2. With the lever all the way forward,slowly move it rearward, stopping when the real edge of the lever is on "4". The rocxkshaft should start to raise at "4". If it doesn't, remove the bung at the rear of the transmission case. Firmly tape to a long extension bar or better yet, weld a 9/16 socket to a long rod about 15 inches long.Step #3. Inside that hole is a castle nut locked on to a roll pin. Place the socket on to the nut and push in which will unlock the roll pin holding the castle nut in place. Then slowly turn the socket counterclockwise until the arms just begin to raise.Step #4. Carefully remove the socket from the transmission case, being very careful to not drop it (just in case you didn't follow my explicit directions) If the socket comes lose------BIG JOB--Rockshaft has to come off and the socket fished out. Step #4. Fully raise the rockshaft by moving the lever all the way to the rear. Let it set there for a few seconds and very slowly move the lever forward until the rocksahaft just begins to drop. The rear edge of the lever should be on "1". So it should just begin to raise on "4" and just begin to drop on "1". To really fine tune the adjustment if different than 4 & 1, split the difference between the two numbers. Have had only a VERY few that were different that the 1 &4 over the years. The rockshaft should then raise all, the way up when set in L&D too.
The same proceedure works on the 10 and early 20 series tractors except you naturally push the lever forward.
CAUTION: Don't try this unless there is nothing mounted to the 3 point arms
Edited by msb 5/16/2009 22:34
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4320 woun't lift cultivator all the way
