I bought an 8A Gearmatic Winch a few years back and have yet to try to mount it to my crawler. I have a ’59 JD crawler. Looks like it should. I Have a gearmatic 8A and the parts book and operating manual. The manual also covers the 8G. I have been able to get parts from a local JD. wanted parts manual or copy,info for winch gearmatic 8a on my jd crawler where i can find parts for restore thanks.

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All the steel work i know of is out of china. Christmas from me, But is at the moment on a pallet in my garage now thanks to a couple of friends. Thickness seemed to be perfect, with right amount of contact on the ggearmatic, but not too tight. Super simple bearings to replace and they were cheap! I was surprised to find that the last person had switched the brake side for the clutch side. Any thoughts on what I should do to replace the missing felt in the spider assembly? It’s handy having part numbers, approximate prices and your thoughts.

Good luck and keep us posted. gearmatif

The X controller uses two different cylinders for the clutch and the brake. The brake holds well and releases for a reasonably easy “free spool”. From what I’ve read and from various comments, I need to remove the drum which gwarmatic be a challenge. The brake cylinder does not. The replacement bushing may not gearmatci a tight fit if the casting hole is worn. Didn’t know it had to come out from the spool side.

The clutch cylinder has a small hole in it that allows fluid to get behind the plunger. Put the cover back on and pull on the controller lever in one direction and hold it to keep pressure on the system for a few minutes.

Slow wins the race.

I’ll do some homework. Easy on the flame wrench. I repacked it with grease, and it seems fine.


Gearmatic 8a Winch – JDcrawlers Messageboard

BTW, found our emails from when you rebuilt your winch. Going to try posting first to test for debug error. They are annoying and problematic. If replacing the wire rope, the drum is an over-wound, right to left set up, so use left lay wire rope if you can. No registered users and 14 guests. Remove the three brake band retainers Round plates with two screws each looks like this may be a challenge – on mine I had to grind one broken screw off and drill and re-tap; not much meat to work with.

I don’t want to have any more brake fluid weaps.

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There is a drift dowel that holds the brake band while it expands and contracts that is exposed near the winch drum and drives out from the cable side towards the cover side – you can see it in your ugh picture. If not i may be able to stitch and lock the broken one back gearatic but thats gonna be a lot of work. Once the cable was off the drum, I started geamatic on the drum with a ballpeen hammer to loosen things up, and the next thing I know, the drum was sliding off the inner bearing and off the main shaft.

I do gearmatix remember that the bearing only had to move like a inch, then the shaft was thinner so the bearing slid pretty easy until the end where a bearing puller was used.

Thanks I got the actuator off today and It is possible to bend one of the legs which will make adjustment of the clutch bands at reassembly difficult. Thanks too for the felting ideas. The fiber washers fail after they have been tightened a couple of times and will gearmatkc you off. These winches are very susceptible to moisture, that combined with years of leaking brake fluid can result in a rusted corroded mess.

Leaking brake fluid contaminates the clutch and brake banding, and finds its way into bearings dissolving the grease which then leaches into places it shouldn’t be. I’m hoping that a gap of. I’ve ordered gewrmatic bearings – two: Paul, unfortunately 60 years of knowledge on these winches is slowly being lost, like a lot of similar older equipment. I am glad that I could help you with with your rebuild, now get some logging chains and put some hooks on those log sliders and get it to work!!!


In the meantime, I’m researching gearmatci availability gearmqtic the oil seal – federal Mogul Waiting gear,atic re assemble when bearings arrive. Once you get these parts loosened or apart, the brake band should move more freely around the drum. A rose bud and even heat is the way to gearmqtic when trying to remove parts like gearmstic clutch lever or the clutch spider. I guess that destroying the bearing is an option since I have a replacement, so levering against the case would work, but I’m open to other ideas.

They are probably rusted together, heat and vibration work the best. Will the drum slide off the crown gear side bearing, or will the drum and bearing usually gewrmatic as a unit? I did have to look thru some of my old photobucket pictures to jog my memory Still not quite there, but at least the winch doesn’t spool in when the clutch is disengaged as it did randomly in the past this was of major concern- I like my hands and fingers.

You can find it at hardware stores. Bought a Timkin, it’s on its way. Enjoy the fruits of your efforts. Who is online Users browsing this forum: I honed the bores with a brake cylinder hone and used brake fluid as a lubricant.

Don’t remember how much it was, but not expensive.