rsmall5206 6 #1 Posted November 25, 2017 My c160 61-16sk03 atuo hydro will barely move. If I push it a little it will go. But it barely moves and will not go on it's own. Any suggestions??? Share this post Link to post Share on other sites
Sarge 3,463 #2 Posted November 25, 2017 If you have the manual or you can download it in our manual section get the one for your tractor as well as the Sundstrand or Eaton manual for that transmission - look at the section covering the tow valve and see if it's in the wrong position or opened . Also , check the drive belt - it could be shot or a sheared pulley key . The rear hubs might have sheared the key or gotten wallowed out from being ran loose - watch the axles and see if they are spinning in the hubs - that is a common problem some have had in the past . Sarge 1 1 Share this post Link to post Share on other sites
AMC RULES 37,134 #3 Posted November 25, 2017 1 minute ago, Sarge said: - look at the section covering the tow valve and see if it's in the wrong position or opened. Share this post Link to post Share on other sites
pfrederi 17,893 #4 Posted November 25, 2017 Based on your model number you have a sundstrand hydro. Make sure tow valve is closed tightly. is this a sudden onset problem or over the long term???? Share this post Link to post Share on other sites
rsmall5206 6 #5 Posted November 25, 2017 This tractor was wrecked about 3 years ago. I just now got a new frame and put it back together Share this post Link to post Share on other sites
pfrederi 17,893 #6 Posted November 25, 2017 If it worked before the accident then i would suspect a drive belt issue (as sarge said sheared keys) also is the idler pulley putting enough down pressure on the belt to ensure it isn't slipping and check the motion control linkage Is it moving the plastic plate through a full range of movement. 1 Share this post Link to post Share on other sites
squonk 41,397 #7 Posted November 25, 2017 Make sure the little set screw is tight on the little transmission motion arm. This arm has the little ball that slides in the plastic cam on the motion linkage. I had one loosen up once and when I was moving the motion control, this arm was not moving the shaft on the pump. 2 Share this post Link to post Share on other sites
953 nut 55,860 #8 Posted November 25, 2017 2 hours ago, rsmall5206 said: My c160 61-16sk03 atuo hydro will barely move. If I push it a little it will go. But it barely moves and will not go on it's own. Any suggestions??? Your transaxle is a Sundstrand 90-1140. Is this a problem that has been coming on slowly and has gotten worse or was it a sudden onset? The first thing I would look at is fluid level and then the drive belt. If you need a belt it is a 5L-850 or a B-82 (both are the same belt size. Share this post Link to post Share on other sites
daveoman1966 3,762 #9 Posted November 25, 2017 The charts tell me your Sundstrand power unit is model 90-1140. When you've exhausted all the above suggestions / guidance, it is likely that the Hydro pump and motor have worn out. I have a rebuilt one...PUMP AND MOTOR on the shelf and ready to send. my email is: daveoman@windstream.net 2 Share this post Link to post Share on other sites
rsmall5206 6 #10 Posted November 30, 2017 Guys I took my left side rear tire off and the key was gone. Replaced it with a nother key. While I had jacked up I tested it looks like it fixed but haven't done the official test drive waiting on some parts still. I will let you all know if it fixed it. Thank you to everyone Share this post Link to post Share on other sites
953 nut 55,860 #11 Posted November 30, 2017 6 hours ago, rsmall5206 said: While I had jacked up I tested it looks like it fixed Simple inexpensive repair, glad you got it fixed. Share this post Link to post Share on other sites
