Posted 5/25/2009 13:27 (#722459) Subject: 4640 differential lock - does not stay engaged
The differential lock on my 1981 John Deere 4640 does not stay engaged. As long as the pedal is pushed down the lock works, as soon as I take my foot off, the lock releases. No leaks, hyd. fluid level full, everything else working. Ideas?
4640 differential lock - does not stay engaged
