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Old 08-14-2016, 07:59 PM
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datkins78 datkins78 is offline
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Default 123 hydrostatic help
Hey guys I've been a member here for a couple years but haven't been very active but now I need some help

I came home with a 123 hydro the other day that's been treated pretty rough in some ways but isn't to bad in others the main mechanical problems it has is that when you turn the key it engages the generator fine and turns the pulley on the front of the crank shaft fine but it's like it's not actually turning the crank because it's not moving the piston(s) nor is it moving the shaft that come out the rear of the motor but if I roll the key and bump the rear shaft counter clockwise it will engage and turn the motor over just fine. Since I've only had this mower a couple days that's about all i know on the specifics of it. Thanks a lot in advance
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Old 08-14-2016, 08:11 PM
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Jeff in Pa Jeff in Pa is offline
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I guess since this is your first post, welcome

From what you described, it seems like the PTO pulley key is either sheared or missing. Are you familiar with the mechanical PTO removal?

Jeff
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Old 08-14-2016, 09:11 PM
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datkins78 datkins78 is offline
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No I've never had to mess with that on any of the other cubs I've got but im usually pretty mechanically inclined
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Old 08-14-2016, 09:42 PM
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Originally Posted by datkins78 View Post
No I've never had to mess with that on any of the other cubs I've got but im usually pretty mechanically inclined
Ok, remove the grill, loosen (separate ) the PTO linkage so the arm moves as far forward as possible. There are a total of 6 six set screw in the PTO. TWO in each hole. Use a high quality 1/8" allen / hex wrench to remove both out of each hole. Use a piece of wood to tap on the PTO itself in the belt groove to remove it.

Then you need to remove the bearing. Remove the set screw and tap the eccentric collar so it moves easily ( the eccentric is on the back )

Pull the bearing and then you're at the PTO pulley.

Jeff
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Old 08-14-2016, 10:21 PM
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Alright sounds easy enough. thanks alot I'll try to get that done here in the next couple days and go from there, thanks again for the advice
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