pto runs counter clockwise

[Frank2131]

I realize that this is an old thread but there are 1:1 ratio Parallel Shaft drives made by Hub City. They are used by several manufacturers as their OEM supplier.

 

[My Hoe]

Rats, I checked out the rotation of my PTO, It's CW, I've been under the hood fixing engines so long that I think of them as turning CW, not CCW as vied from the back witch makes my PTO the reverse rotation of the engine CW.

Okay, I'm confused. If I'm standing behind the tractor, which way should a NORMAL PTO shaft turn? CCW or CW?

And is this generally with, or against, the direction of the engine's rotation--again, while viewed from the REAR, for consistency.

Thanks much.

 

[Ilikeurtractor]

Standing behind the tractor looking at the PTO a "standard" PTO turns clockwise which means "standard" attachments take a counter-clockwise input (looking at the input shaft going into the implement which is opposite looking at the rear of the tractor of course). I'm not sure if there is a "standard" engine rotation, but all of my tractor engines rotate counter-clockwise as viewed from the rear of the tractor. Which then means if I walk around to the front of my tractor and look at the front PTO directly coming off the engine, it rotates clockwise.