two horser 11 #1 Posted November 7, 2015 II HAVE A 520 THAT WON'T STAY IN FORWARD POSITION DRIFTS OUT ALSO VERY SLOPPY ALOT OF PLAYCAN ANYONE GIVE A SUGGESTIO AS TO WHAT TO LOK AT 1 Share this post Link to post Share on other sites
DougC 2,641 #2 Posted November 7, 2015 When you say "drifts out" does that mean when you release the motion control it slows down? If thats the case the friction nut on the top of the hydro can be adjusted tighter so it will maintain a constant forward speed. That would also make the motion control ( lever or stick ) seem tighter or less sloppy. If you have to constantly hold the control with forward pressure and everything runs properly that is the problem. Tilt the seat forward and the linkage is visible. Share this post Link to post Share on other sites
Ed Kennell 38,887 #3 Posted November 7, 2015 I think you will have to remove the cover plate on the console in front of the seat to access the friction adjusting nut that Doug is referring to. 1 Share this post Link to post Share on other sites
Tuggster 2 #4 Posted January 31, 2016 New 520H owner here. Love this site. Anyhow, I have the same issue with the motion lever drifting back to the neutral position. I have an exploded view and parts list of the motion control linkage but I'm not sure which nut is the friction nut you are referring to. Is it the nut that secures the rod assembly to the arm control? Your help is appreciated. I've been having a blast with this tractor. Got it with a front end loader, plow and 42 inch belly mower. Share this post Link to post Share on other sites
Kurt-NEPA 755 #5 Posted January 31, 2016 To access the friction nut to stop the hydro from slowing down. 1. Lift the seat to access the linkage 2. Adjust the friction by tightening the nut with the big washer under it (in the picture above). Small adjustments can make a huge difference. 3. Test and repeat as needed. BTW, the big nut on top with the bolt in it is a cam that changes the neutral position of the speed lever. Kurt 2 Share this post Link to post Share on other sites
squonk 41,493 #6 Posted January 31, 2016 Those cams wear out also creating lots o slop. That funny lookin plate wears a groove in the cam. look there first! Share this post Link to post Share on other sites
WNYPCRepair 1,923 #7 Posted January 31, 2016 On mine, the washer was broken in half, and it wouldn't stay in position, kept slowly going back to neutral Share this post Link to post Share on other sites
Kurt-NEPA 755 #8 Posted January 31, 2016 The cam plate in the picture I posted above was badly worn, as was the cam. One of the Friction washers was missing too. Needless to say, the motion lever had a multitude of problems. I replaced the cam, cam plate, and friction washers. Adjusted according to the manual and everything worked as it should. Kurt 2 Share this post Link to post Share on other sites
