pfrederi 17,645 #1 Posted September 2, 2009 Got my rear mount mower hooked on the D200 today and gave her her first good work out...up and down hills in very heavy grass. Mower deck worked well but I was concerned the hydro temp gage showed she got hot. Up till now I have only used her with the FEL and not worked her very hard...also just now got a temp gage that seems to work (it may be a bit pessimistic as it showed about 20degrees cooler a few seconds after I shut it off). My D is a 1974 so there is no auxillary fan. I know it was added later in the series. From Toro parts it looks like a simple 12 fan used on trucks and buses to keep windshield clear. I searched the forum and haven't found anything on where exactly it mounts (A picture is worth 10,000 words in this case. Please... I won't bother with the thermostat just a switch I can hit when the temp goes up Share this post Link to post Share on other sites
canam1991 2 #2 Posted September 2, 2009 i will get one later unless someone beats me to it :scratchead: Share this post Link to post Share on other sites
pfrederi 17,645 #4 Posted September 2, 2009 Thank you kind sir!!!! Share this post Link to post Share on other sites
canam1991 2 #5 Posted September 2, 2009 no problem there is a bracket with four bolts that holds it to the casting i don't no if the 74 had them predrilled? also you could just wire it to the key so the fan is on when the key is on that way you don't have to drill a hole for a switch!!! Share this post Link to post Share on other sites
defed 0 #6 Posted September 6, 2009 canam, is your fan an 'aftermarket' install? i presume so, originally they were activated via a thermostat on the hydro line. i haven't gotten mine hot enough to actually make the fan come on...altho the thermostat could be faulty too. temp gauge was just over 100 and the hydro lines were just a bit hot to the touch, so probably not hot enough. anyone know what temp they should turn on at? Share this post Link to post Share on other sites
canam1991 2 #7 Posted September 6, 2009 :scratchead: no mine has a thermo switch in the 3rd picture at the bottom of the manifold... its white with yellow wires mine turn on at like 140-150 and stays under 150 Share this post Link to post Share on other sites
defed 0 #8 Posted September 6, 2009 ok, i thought that was just a wire splice and not the sensor! i have a D-160 w/ and one w/o the fan. just got the one w/ the fan going (hopefully the snowblower this year), so haven't run it to 150 degrees yet. i did test the fan tho, it works. i guess i could probably test the sensor too if i had a heat source to trip it with. Share this post Link to post Share on other sites
pfrederi 17,645 #9 Posted September 7, 2009 After I looked at pictures I realized something wasn't right. There was apparently a major change in the seat suspension later in the series. In my 1974 there is a large support column sitting on top of the transaxle that will preclude mounting the fan the way it shows in the picture. Now I am thinking about a pancake style fan used for cooling car stereo amplifiers or computers.... Has anyone installed any supplemental cooling on an older D series with the long arm seat suspension???? Share this post Link to post Share on other sites
defed 0 #10 Posted February 28, 2010 my hydro temp gauge hasn't even moved all winter (snowblowing), but i was out working some really heavy, wet snow yesterday and after an hour, i happened to look and it was up to 150F. flipped the seat up and the fan was on. after a couple of minutes, and just under 150F, it was off again. guess i was doing as much plowing as blowing w/ the snow that heavy and got the tranny all warmed up. at least i know it works now. Share this post Link to post Share on other sites
Rideawaysenior 25 #11 Posted March 1, 2010 You can get a false reading too if the wiring is a bit dodgy. I've got a D160 that as soon as you fire it up the needle moves over to the red and the is no joke after 1 second of running. I re-wired it this past week and found some real bad connections. Fixed everything and works great. I've never gotten over 200 degrees and I don't have a cooling fan and I work that tractor like a rented mule. Share this post Link to post Share on other sites
defed 0 #12 Posted March 1, 2010 i believe that my gauge is working properly. i didn't use the tractor much in the summer, and only got the temp to about 100F. all winter, i have been blowing light snow, which isn't much work for the tranny...and being 0F outside probably helps keep it cool. saturday, it was over 30F and i was working it hard pushing the heavy snow and the temp rose up as expected. guess i'll really find out how accurate/well it works if i ever get the loader on and run it harder in the summer. Share this post Link to post Share on other sites
