Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
bigdog46

7116H Sunstrand Transmission Power Loss

Recommended Posts

bigdog46

I have a Simplicity 7116H with hydro transmission and hydraulic lift. All of a sudden it does not move as fast as normal and it struggles to pull up a hill. Could it be a problem with the check valve or perhaps the charge pump relief valve? The fluid level is good, the filter is new and the belt is not slipping. I have never had this problem with any of my hydro tractors in the past. Maybe someone has had the similar problem and can help? Thanks.

Share this post


Link to post
Share on other sites
BLT

Also, worth looking at, is to see if item 32 is tight in the slot.

7100HydroLever.jpg

Over time I have seen a few where the nut holding the lever in place has loosened causing all sorts of strange operations to happen.;)

Share this post


Link to post
Share on other sites
Burntime

Bob helpted me diagnose #32 on my gthl when I had it. The slot had egged out from years of not being tight. Did you start with simple stuff like a fluid change? If moisture gets in the fluid it will get sluggish. I use semi sythetic mercron V. Less warm up time, stays cooler, and easier start ups in winter.

Share this post


Link to post
Share on other sites
bigdog46

Drained & replaced the fluid & changed the filter. I did notice some gel-like residue in the old filter. Also, I moved the idler pulley up one notch to tighten the drive belt as it seemed to be a little loose. Runs great now. Thanks for the replies.

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)

    • TommyK1
    • Paul M.Murphy
    • PhanDad
    • tripleguy
    • simplewrench
    • MercerRec
    • CarlH
    • BLT
    • ALLISSimplicity9020
  • Today's Birthdays

    1. Carchief
      Carchief
      (57 years old)
    2. Geoff
      Geoff
      (56 years old)
    3. mohrds
      mohrds
      (51 years old)
  • Recent Status Updates

    • SonOfCreepfeed

      SonOfCreepfeed

      Thinkin' about this old girl.

      · 2 replies
    • 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
  • Adverts

×