bobromanko 0 #1 Posted February 28, 2025 I'm a relatively new owner of a 1968 Electro 12. Unfortunately, the previous owner removed the hydraulics. It was great the first few days I ran it, then it started leaking transmission fluid. I suspected pressure in the case, so I checked to see if he removed the bypass valve. There was just a bolt and a spring, but no apparent valve. Looking in the manual, I don't see a good pic. Would someone please share a pic of the part(s) to be removed when the hydraulics aren't on the unit? Thanks... Share this post Link to post Share on other sites
Ed Kennell 44,158 #2 Posted February 28, 2025 to theBob. One of our Sundstrand experts should be here soon to help. @daveoman1966 @gwest_ca @pfrederi Share this post Link to post Share on other sites
gt14rider 1,029 #3 Posted February 28, 2025 (edited) Wrong pics Edited February 28, 2025 by gt14rider Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,932 #5 Posted February 28, 2025 Can you reverse engineer it? More https://www.wheelhorseforum.com/search/?q=8-4111&quick=1&type=downloads_file Share this post Link to post Share on other sites
gt14rider 1,029 #6 Posted February 28, 2025 Sorry post above is a piston to piston sundstrand, you have a Hydrogear . I'll see if I can get a better picture. 1 Share this post Link to post Share on other sites
gt14rider 1,029 #7 Posted February 28, 2025 Bob need a little bit more information, were is it leaking? did it stop running suddenly? Share this post Link to post Share on other sites
daveoman1966 3,881 #8 Posted February 28, 2025 4 hours ago, gt14rider said: This photo is NOT what is in the Charger 12. You need to look at schematics of Sundstrand Hydrogear model 90-2046. hyd 90-2046 CHG 12.xlsx Share this post Link to post Share on other sites
TonyToro Jr. 2,235 #9 Posted February 28, 2025 to !! Also of your Horse! Share this post Link to post Share on other sites
bobromanko 0 #10 Posted March 1, 2025 The transmission still works, but it is leaking in multiple areas. That's what makes me believe it may be pressurizing. It was bone dry. I'll give everything a complete cleaning and see where I can isolate the origin(s). In the exploded parts list from @gt14rider, is what I should have removed part #16? All I found in there was a spring that I removed. Share this post Link to post Share on other sites
