Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  

hydraulic fluid change 9020 powr max

Recommended Posts


i am trying to change hydraulic fluid and filter on a 9020 simplicity and cannot find a drain plug..looked under the rear axel housing...it has a rear pto and can i loosen other hose fittings to get as much of the old stuff out,,,poor thing is needin love...

Share this post

Link to post
Share on other sites

Need to remove bottom frame cover plate exposing hydro unit. Then on forward bottom of rear differential casting there should be temp sensor that you remove. It doubles as drain plug. Some times the temp sensor has been replaced with standard plug.

Good luck Mike

Share this post

Link to post
Share on other sites

well it was tough to get the sensor off after king kong tightened it last.....had to put a breaker bar on it...it dont have to be that tight i hope.....the rear cylinder still leaks down but no were near as fast....i think it may be a bad seal unless you have any other ideas....and thanks again for the help...

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Who's Online (See full list)

    • Chad Graska
    • macallis180
    • AC710
    • Hick
    • GregB
    • abu507
    • BruceH
    • tamurmueen
    • dynodave
    • TomSchmit
  • Today's Birthdays

    1. Trevor Hostetter
      Trevor Hostetter
  • Recent Status Updates

    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁

      · 1 reply
    • thedaddycat

      thedaddycat  »  SmilinSam

      It's in pretty sad shape, but yes I have a yellow plastic cap that I'm fairly certain is what you need. PM me your details and I'll get it out to you.
      · 0 replies
  • Adverts