rodcap
Active Member
The spool-to-valve section is a machine fit with no o-rings. However, there are seals(o-rings) between the valve sections. Also, if the drain-back hole(I mentioned earlier) is restricted, back-pressure will build and cause leaking.The control valve that leaks, doesn't leak when you are using that function, it leaks when your using other functions. There has to be some kind of seal that is keeping the pressure or return flow from the boot area on that section? I could see the boot holding some seepage, but this is flow. There's no way those little boots with the spring clamps are going to hold the amount of oil I'm seeing.
The valve that is leaking is leaking from the boot area, but it isn't leaking when running that function. The valve that is leaking is for the left rear outrigger, and it leaks the worst when rpms are up and cabling down. Its worse with multiple functions. I'm guessing its spiking the pressure to overcome the winch brake, and that spool's seal is bad.
I hope it isn't coming from between sections on the valve stack. Its wet on the boot, but I haven't actually stuck my flashlight under there and looked. I'm just trying to get done with that job with it before I tear into it.
I have a Galion Manual around here somewhere. I'll post the control valve breakdown.
Like I said, that particular crane came from the Geismar, La. location(which is 7 miles from my place), so I wouldn't know the condition of it.As far as the galion, I bought it from ritchie bros. Aside from the spring reel for the boom hoses being broken, it seems like a good little rig. . Those spring reels are spendy though. Its got some rust on the door bottoms, but it looks like they all rust there, the rest of it seems pretty solid. It has all new push pull control cables , and someone's been into the swing brake. I had to free up the winch brake, and I'm not really impressed with how the winch brake was designed, but it seems to work like it's supposed to now. Jib is a pain to install, I can see why most of them get taken off.
Yes, the spring reel is pricey. I carried a new reel on my service truck before I retired and don't know what happened to it.
All of the Galions in our fleet were sold because the have no Safety Shutdown Systems. Exxonmobil would not allow them after a certain date. We replaced them with Broderson RT300 and Manitex M150.
There is a guy who designed and patented a upgrade winch brake for the Galions. It's a direct fit and works well. I can send info on it if you need.
As for the jib, when not needed, we stored them on a rack. It was faster and safer installing and removing than to swing it from it's storage position. Also, removing it from the crane gave the operator a bit more lifting capacity.