PTO Keeps popping out once engaged

[Lance K 0]

I'm having problems with my 416-8. I have a loader attachment which has been working fine for 20+ years. In the last 6 months it has been popping out once engaged. So I need to hold the lever down (engaged) to lift the bucket or any operation involved, then drive it to where I need to dump only to have to hold lever down again. For 20+ years it never worked like that. Just put it down and good to go. I figured I might as well change the PTO clutch which was needed  and lube the bearings while apart. No problem! I was hoping that would stop the problem. Unfortunately not! I am open to any suggestions or comments! Even the Toro guy was scratching his head. I am going to replace the Nyliner Bushings and nylon shims to make operation smoother through the metal housing. I did see somewhere someone commenting about the PTO Clutch rod but cannot find the page anywhere.

[Ed Kennell 43,311]

to the  Try shortening the rod by turning the trunnion to the rear one turn at a time.

[Lance K 0]

Thanks Ed,

   I've tried up and down the threaded PTO rod with no success. I'll be checking the PTO switch tomorrow. I figure eventually I'll find it.??!!

   Thanks though.

[gwest_ca-(File Mod) 11,775]

The trunnion is installed from the bottom of the swinging bracket with the keeper pin on top?

[peter lena 9,492]

@Lance K  your unit with 20+ years  is probably  long over due  for some collective help , meaning  this is not a one and done , regularly refer to  that area , as a gold mine of opportunity,  went thru the entire set ups on mine , some related areas , in the site sent . bet  there are a number of  hang ups,  I also did over related bearings , with a clean out and lucas green chassis grease . my pto mule drive belt , spins the related bearings with  ease . note ist photo , firming up the pto lever shaft  , changed out the sloppy trundle , for a  RETHREADED  3/8 x16  to 3/8x24 , die nut ,heim joint , once you fix them , they are  very smooth / easy  , pete  

 

[peter lena 9,492]

@steelman  , original  assembly line build up  was the issue , no time alloted for  actual  detailing  .  regularly  find adding washers and lubricant , makes it better . another  thing that  really  helps  for ANGULAR  MOVEMENT  , IS HEIM JOINTS ,  they instantly react to NEXT STAGE OF  CONTINUED FORCE . they are also  usually fine thread , I  use a DIE NUT , to thread right over the original  coarse / thread, EX  3/8 x 16 vs 3/8 x 24 , dramatic smooth easy  action . my local H/W  store has bins of no thread , SHOULDER BOLTS ? those let you  build in a swing point  to a lever , washered on each side , hold a perfect lubricated setting , with a finish, elastic lock nut , dial it in . have it on pto  lever  end , also on my  plow  rod  ends , steering  rod ends . pete    

[Ed Kennell 43,311]

15 hours ago, Lance K said:

Thanks Ed,

   I've tried up and down the threaded PTO rod with no success. I'll be checking the PTO switch tomorrow. I figure eventually I'll find it.??!!

   Thanks though.

Check the spring that locks the cam at the bottom of the cam on the PTO engagement lever.    It could be weak or disconnected.    I actually added a spring on my 312 to keep more tension on the rod.  It helps to keep the PTO cam locked in the  on and off positions and stops the rattling noise.

 

[parsonsponyz 259]

[peter lena 9,492]

@Ed Kennell   ED, nothing sarcastic , hitch pin clip , right under that on frame ? turn the outer  pto cone , swing clip around , use a lighter spring , same type , and connect the two ,  as stated , that area is a , gold mine for  ENHANCEMENTS . removed my  cone brake years back , lucas green , very lightly on / in needle bearing ,  also did the , lever  improvement  , sloppy start  spot . pete