Last time I was at the PT factory, I took a good look at the current winch. As far as I can tell, it's nothing more than a White Hydraulics CE series motor (I think it's around 18 in3/rev) directly coupled to a very simple winch drum (pipe, plate, round stock and pillow block bearings, with no freewheeling clutch or other tomfoolery), along with a reversing valve and hoses.
If I didn't already have a salvaged industrial worm drive winch waiting for me to couple to a motor (I've got a whole sack of Round Tuit's here somewhere), I'd weld up a drum and bolt it up to my PHD/tree planter motor & valve. Last time I looked,
Surplus Center still had a bunch of used Hydrocomp motors for $59 each that would probably work just fine. Add an open center, 4 way, 3 position detented spool valve (motor spool if you want freewheeling in neutral, cylinder spool for loadholding) and I think you're good to go.
You can choose your motor size to optimize speed vs line pull for your intended application. Based on what I remember of
Surplus Center's winch drive info, I'd guess that for a PT 425, a range of about 14 to 24 inch motor displacement would work well with about a 2" drum size.
Surely one of us has the time, ability, and inclination to try it? /forums/images/graemlins/tongue.gif
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