Deere L 118 slows down after hours of use


Old 09-14-07, 02:37 AM
Thread Starter
Join Date: Sep 2007
Location: usa
Posts: 17
Deere L 118 slows down after hours of use

I recently bought a John Deere L-118 automatic lawn mower that was run hard but well maintained. After a few hours of use it doesn't move as fast as when it is cold. The motor stays the same RPM but the mower drive speed slows down. It has a new drive belt and pulley so it isn't slipping. Could there be a problem in the trans? Do they have a filter that can be changed like a car trans? I am not familiar with these machines but have fixed many riding mowers over the years. This is the first automatic I have dealt with. Any sugestions? Thanks.
Sponsored Links
Old 09-14-07, 12:22 PM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
I believe that the hydro tranny will be a Tuff Torq brand. I don't have enough experience with them to advise you well so stay tuned for Cheese, the other moderator, and others who may. I'd suggest for any possible service info on their site, in the mean time.
Old 09-14-07, 07:49 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,814
Look at the top of the tranny, and I'll bet there is a lot of debris and clippings piled on it. This tranny has cooling fins like an engine, and a fan on the input shaft to blow through these fins. If these fins are covered with clippings, the tranny runs hot and the oil characteristics change, and the pump can cavitate. Usually cleaning it fixes the problem. Check the plastic fan for broken fins. If they are missing, replace it.
Old 09-16-07, 06:41 AM
Thread Starter
Join Date: Sep 2007
Location: usa
Posts: 17
Thanks, I will check into this.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes