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I believe there may be a roller that I'm missing on the spring loaded piece that holds the cable against the spool, so when the line is slack, it does not unwind. I had the few SS pieces to plumb it to trial fit the hydraulic lines.

I'm going to update this thread. A lot has happened. The winch is back together, but taken a back burner to the other 22 "projects". A SS member made me an offer to sell an entire 4 section Grove crane at a great price , but I just couldn't do it. My project is an M35A3 4x4, so a smaller...

GROVE crane winch I've reassembled each section about 3 times now. Since it's apart, it gets new o-rings for the piston and the case. Cost of 6 o-rings $8 and a few days. They are (2) 6" OD x 5 3/4" x 1/8", (2) 6 1/4 OD x 6" ID x 1/8" and (2) 3/32" x 6 3/4" OD, all are 70 duro. There was...

The gearbox is inside the winch body. Here is about the position of the motor and the input gear shaft which is the brake shaft..

Can you send that UPS?

For hydraulic actuation of this brake, or rather the release of it, there are ports that allow flow to the piston that you can see in the last photo. Actually there are 2 sets of three ports and some are plugged. One set puts flow into the back of the piston on the spring side. That would...

Here is the disassembled brake. The shaft goes through and is keyed to the one way clutch that is splined to the friction portion of the clutch. The steels are splined to the outer housing. When compressed by the spring, they stop the shafts rotation, in one direction. The springs are in the...

The winch is entirely apart. It has a one way clutch that is splined with the steels of a hydraulic clutch. It is hydraulic, not air. There is one piston with springs behind it that force the clutch plates to engage and stop rotation of the sprag part, which is splined to the clutch steels...

Actually Gunzy, I made a mistake that seems to be working out okay. Buying from a picture they look a lot alike. But it's clear now that it is the crane winch. Along the way in planning this project I started thinking that I had an FMTV winch coming...the first mistake. Then I was going to...

Moderator, please change the title to "Grove Crane Winch". I still have to determine how it operates. If anyone has pictures or a diagram of the connections to the brake part, please post them.

I wish I had the rest of it (the entire crane)....but it might be a bit big on a mid mounted 4x4 deuce.

Okay, I'm convinced not FMTV. It's too small, but probably fine for a small crane. It's not as large as I thought.

My mistake then. The ad did not exactly say it was from an LMTV. I guess now I get to tear the brake apart and see how it works and what I need for control. While I think it's air, it may be hydraulic that operates the outer unit (brake).

The unit that I called a gearbox with the long shaft allows the shaft to turn one direction and like a sprag clutch, locks in the other direction. The outer large gear is fixed, does not turn. Thus all the gearing must be inside the winch drum and this unit has brakes or one way clutch's, not...

When it arrived, it had all bolts missing on the gearbox side. Here is apart.

I purchased an LMTV hydraulic winch on line (edit...it's a Grove Crane winch). It appears to have places where air lines may have been removed that go into what I thought was a gear box. Now I think that part is a brake or some type of clutch. It's physical size is smaller than I expected...