Just some work pics

Back at the 10 story building this morning, had one I beam they left out by the stairway, we threaded it in by the mechanical room behind a parapet roof. Then we flew up some of the doors, no elevator installed yet, so they drug them in a window. I took the steel table down there to lay them on.

I also flew the tracked manlift back up so they could do some roofing on the penthouse. Left the crane there for the weekend, windows are supposed to be showing up and the lift will need to come back down.

6v92 in my 70 ton......

Crane operator we missed a shift and no video

I'm trying hank.....

crane operator said:

I'm trying hank.....

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Ahh. The music of my people.

Sounds good the super pipe good for 35 more HP?????

70 ton have upper and lower engines?

If your talking about the height of the pipe hank, it gets it above the boom when the boom is in the rest, so no black on the boom, and it does put the pipe a little higher above the driving cab, moving the noise up.

Daro- I'm just lower engine, has a driveshaft off the front crank, driving a gearbox with two, two stage pumps. Pumps disengage going down the road.

Ahh thanks.

Sorry about the second video, I moved the camera a little quick about 1/2 way through, and watching the video it looks like the crane is tipping over. It's not.

They are from a hvac unit I set this week with my tms 300.

I need a way to stick my camera to the back window or mount it somehow so I don't have to hold it. I can about run that old 35 with my eyes shut, but my 70 ton is a whole different beast.

Maiden trip for the new (to me) galion this week. Had to do a golf course irrigation pump. We've done it the last couple times with the 25 ton truck crane, but it rained through the night and that's just bare dirt, and downhill toward the pond. It wasn't soft down in, just all greasy on top, so I thought I'd try out the 4x4. It slid a little going in and back out, but I don't think I would have got the 25 in and out, without waiting for it to dry up.

Crane worked fine. But it sure doesn't run like a old grove. I'm not a fan of friction swing, but it works for these small rigs, when you're not level all the time and do on rubber picks, or even with outriggers up, but it sure is isn't easy to be smooth with. You can also tell it isn't multiple section pumps, its much harder to do multiple functions and be smooth.

Also played around at the shop and installed jib, its a underswing A-frame and its a pain in the a$%. I think I could put jib in the 70 ton faster.

I used to have a grove tm250 (like td25's), and it had a underswing a- frame, but it wasn't too bad to put in, this one is a pain.

I had thought we had a boom cylinder bypassing on the galion, we set it up in the back yard with some heavier steel pads as a test weight. It was creeping down, not fast, but little by little was moving. I could hear a little squeal sound, like oil coming through the holding valve, etc. so I ordered a kit for the cylinder.

Lucky we pulled out the 5 part block when installing jib, and went to a single line. When I went to lift up the jib with the winch, as soon as I'd let off the lever, it would walk right back down. Turns out the little squealing I was hearing was the winch brake, not oil. With the 5 part in, there wasn't enough weight to make it back drag, but on a single line, it was rolling right back.

Disassembled the winch brake, and one shoe and the pivots were all rusted up. Cleaned it all up and it works good now. I always like to test things out at the shop before I head to a job with a new rig.

70 ton, pulling down their lift (for the last time I hope).

I've got stinger pulled out and offset in here, they had some items to put back in behind the parapet after I had moved the crane, so I just put that in, rather than moving crane back to the other corner of the building. A little more boom would have been nice, but it worked.

That's 127' main, 60' jib at a 17 deg. offset. I'm around 90' of radius or so.

crane operator said:

That's 127' main, 60' jib at a 17 deg. offset. I'm around 90' of radius or so.

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What's the load chart limit with all that stick out and 90" radius? I'd be afraid a big old crow would land in the end and tip it over!

90' radius is 3700lbs, and it boom deflects alot with that kind of weight. Chart goes to 130' over the rear with 2200lbs, and it gets really light out there.

It would be a lot better rig at radius if they had put 15-20,000 lbs of removable ctw. on it, like they do with the newer link belt and terex's, but I don't have to have a support truck/trailer to haul it to me. My 70 ton has a self contained 8500lbs ctw. Which is basically the same size that my tms 300 grove has, and it only has 104' main and 32' of jib.

You can really tell the difference at 100' radius, each crane has the same amount of counterweight, but one crane has 188' of boom, the other only has 136'.

For comparison, I have run a grove gmk 4080 (85 ton) all terrain crane. That's got 125' main and 52' of jib, but the germans slap 30,000 lbs of counterweight on that rig. It really makes a big difference on how the machines feel at radius. At 100' of radius, 127' main boom only, my 70 ton is good for 2700lbs, a 85 ton gmk with 125' main, will handle 5400lbs. 20,000 more of counterweight, gets you 2700 lbs more capacity.

If you put jib on, and offset, my 70 ton is good for 3700 at 90', the gmk is only good for 4400. So adding 20,000lbs of counterweight only gets you a extra 800lbs of chart with the jib on (structural on the jib is the limiting factor, not counterweight).

I really like not having to mess with the counterweight and semi trucks, my 70 ton is about as big as you can get without having to deal with all that.

What is the purpose or advantage of offsetting the jib 17 degrees ?
It looks like the 17 degrees is to the side from the pic ?
If so, doesn't that create a side load or torque to the boom ?