davidtmercer 58 #1 Posted December 23, 2017 I am having issues with a Sundstrand Hydro (90-1136) running in the opposite direction, when moving the lever forward it travels in reverse. When pulling the lever backward it travels forward. Any help would be appreciated. 1 Share this post Link to post Share on other sites
953 nut 55,860 #2 Posted December 23, 2017 It sounds like a linkage issue. Can you give us a little background on what it was like before this issue appeared. Is the direction lever moving smoothly? I don't remember seeing anything in the manual about this, but take a look, could be they will help. Sunstrand Hydro (part 1).pdf Sunstrand Hydro (part 2).pdf Sunstrand Hydro (part 3).pdf Sunstrand Hydro (part 4).pdf 1 Share this post Link to post Share on other sites
pfrederi 17,893 #3 Posted December 23, 2017 If it is a pistion to piston (not a hydro gear) if you put the hydro motor cover on upside down it will operate backwards. What tractor is this on??? 1 1 Share this post Link to post Share on other sites
mikeeyre74 289 #4 Posted December 23, 2017 Yeah, Pfred nailed it. if you took it apart at all and got this thing upsidedown, it'll do that to you. Four bolts, flip it around, and it'll work correctly again. 2 1 Share this post Link to post Share on other sites
davidtmercer 58 #5 Posted December 23, 2017 Thanks for the replies gentlemen,. I will try turning the motor. I received it from an individual who did not know the history. I had to re-install the pump and currently have it installed on a C-121 and was pleasantly surprised that it moved back and forth with authority but disappointed that it was the opposite of the lever movement (reversing the motor could be a good practical joke if there wasn't any risk of injury, property damage). Will keep you posted. 1 1 Share this post Link to post Share on other sites
JERSEYHAWG / Glenn 4,497 #6 Posted December 23, 2017 Dave, . Let us know. Glenn Share this post Link to post Share on other sites
pfrederi 17,893 #7 Posted December 23, 2017 The webbed side goes up like mikes picture. The smooth side down 1 1 Share this post Link to post Share on other sites
davidtmercer 58 #8 Posted December 23, 2017 Problem solved. Thanks again for your assistance. After picture shown below. 1 1 Share this post Link to post Share on other sites
Horse Newbie 7,124 #9 Posted December 27, 2017 My brother and I had an old boat when we were kids. We restored it. The steering wheel pulled on wires/cords which went through pulleys back to the outboard engine. Needless to say we got it wrong and right was left and left was right. Should have seen us trying to pull away from the dock on our inaugural launch.🤣 Share this post Link to post Share on other sites
