Advanced Search

The Green Industry's Resource Center

Old 07-11-2015, 01:40 PM
ikemike.k ikemike.k is offline
LawnSite Member
Join Date: Jul 2015
Posts: 2
2008 Grandstand

I've got a 2008 Toro Grandstand with some hydraulic complexities.
On lawns that have a fairly decent sized hill, (so the machine is being pushed harder) the oil overheats and starts coming out of the reservoir. It also loses a lot of power and becomes very slow. Also, even when it is not overheated, it is missing some reverse power as it is hard to get it to back up a hill.
I've changed the filter and oil, contacted the Toro dealer and he said "It may be a pump." Wow.

Any other ideas?
Reply With Quote
Old 07-11-2015, 02:07 PM
BigFish's Avatar
BigFish BigFish is offline
LawnSite Silver Member
Join Date: Jul 2008
Location: chesapeake, va
Posts: 2,614
First off, are both bypass valves closed/seated? Are they in good shape? not scored etc?
It could be sucking air, or could be an internal check valve issue with the pumps.
Could be a restriction in the feed line, filter, etc.

You have the correct oil in it, right? Correct filter? Pump belt tight and not slipping, right?

You need to check the linkages for proper movement, etc.

I would find another dealer! Call around till you find one that can do a flow test on the pumps. That will tell ya just what's up.
Doesn't have to be a toro dealer, but since them GS units are a PIA to work on, it prolly aint gonna be cheap!
It ain't rocket science! far.

'Course if yer house has more wheels than yer truck...
" Old age ain't for sissies "
Reply With Quote
Old 07-11-2015, 03:29 PM
herler herler is offline
LawnSite Fanatic
Join Date: Apr 2012
Posts: 5,145
Perhaps a line on the suction side has developed an air leak?
The bubbles going into the oil would stay just long enough, especially those thicker oils like 20w-50...
It's not like water where air bubbles out almost instantly.
When air gets into some thicker oil it floats so slowly around the oil it can actually create "bloat," causing the reservoir to overfill.

Might be just a loose fitting as well.
I would check the hoses and fittings for leaks.

Maybe place some newspaper under the machine and let it sit for 48 hours.
Then see if you can find any drips.
Plain unmarked cardboard might work even better.
Reply With Quote
Old 07-11-2015, 03:43 PM
ikemike.k ikemike.k is offline
LawnSite Member
Join Date: Jul 2015
Posts: 2
Thanks guys! Will definitely check these out.
Reply With Quote

Thread Tools
Display Modes

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

Forum Jump

Layout Style:

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Grand View Media
All times are GMT -4. The time now is 05:10 AM.

Page generated in 0.05506 seconds with 10 queries