Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
npalen

PTO driveshaft rattle

Recommended Posts

npalen
ALLIS 720/PowerMax I'm getting an "on-and-off-again" rattle that I'm guessing is coming from the PTO driveshaft between the engine and the PTO clutch. Haven't had time to investigate yet but wondering if anyone's experienced this and a possible solution. Seems like something might be out of balance. Thanks Nelson

Share this post


Link to post
Share on other sites
npalen
The rattle stops when the clutch is depressed so I'm now thinking it's a bad bearing or sheave driving the hydro. I don't normally use the clutch (belt tightener) and didn't realize the noise stopped when doing so. What else might be bad in the drive ahead of the hydro? Comments?

Share this post


Link to post
Share on other sites
npalen
Would anyone have the part nos. for the pivot bushings for the tightener and the fiber disc as well as a source? I assume the ball bearings can be purchased locally. Haven't opened it up yet but would like to have the parts on hand when I do. Thanks Nelson

Share this post


Link to post
Share on other sites
UCD
Rick on your file name delete the name off from the end and if the second number past tp is a 3 digit number 390 insert a 0 zero making it a 4 digit number 0390 IE the edited link in your above post

Share this post


Link to post
Share on other sites
UCD
They are the same tractors. There is a few differences between the model numbers 990705 Simplicity 4040 = 2020185 Allis Chalmers 616 16hp. Onan 990953 Simplicity 4041 = 2020303 Allis Chalmers 620 20hp. Onan 990954 Simplicity 4041 = 2020304 Allis Chalmers 620 20hp. Onan 1690072 Simplicity 9020 = 1690073 Allis Chalmers 720 20hp. Onan 1690230 Simplicity 9020 = 1690231 Allis Chalmers 720 20hp. Onan 1690283 Simplicity 9020 = 1690288 Allis Chalmers 720 20hp. Onan The best way to find the differences in parts would be to download the parts manuals and check for differences in part numbers.

Share this post


Link to post
Share on other sites
UCD
You can download manuals on the main page by typing the MFG# into the Search for Manuals at Simplicity Mfg. Box in the upper right corner or at this site. http://www.simplicitytechpubs.com/techpubsearch.php#start

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  

  • Who's Online (See full list)

    • Bird76Mojo
  • Today's Birthdays

    1. Mike_H
      Mike_H
      (43 years old)
  • Recent Status Updates

    • Paul M.Murphy

      Paul M.Murphy

      Hello glad I got on this site. I hope to upload a couple of photos of my Simplicity Broadmoor 
      Model 707 Tractor. I have replaced all the belts on it and installed a new ignition switch.
      Have a mower deck which was in poor shape , repaced a couple of bushings and welded the
      deck where there was some holes. The tractor and mower deck came from a friend and the 
      mower deck metal was getting pretty thin. Some new metal was put in it and we also undercoated the underside of the deck. This was done by my friend Greg Toulman.
      I have not put the mower deck on the tractor yet, waiting for Greg to come home and give me a hand. Can you please tell me if there is a manual for the mower deck and where I could get one.
      I would also like to get some moon wheel discs as well.
      I will try and down load some photos of the tractor when my wife shows me how to. 
      I really love driving this tractor and also how well it is made compare today's tractors, especially the flexible rear end and the rollers.
      Tell the next time 
      Paul
       
      · 8 replies
    • jbrooks

      jbrooks  »  Talntedmrgreen

      Josh
       
      folowing  this from a link at the downloads.  I just rescued an AC 920 with the lambodini diesel. I can' t download  yet .  Where did you find the PDF copy you posted. . I would like to figure out how to adjust the injection pump. 
      I assume it's a bosche, correct
      · 0 replies
  • Adverts

×