Looking for an iPhone and found a crane.

[Ghillie]

couple of you guys sound like maybe some unsafe practices going on...If any movement is not functioning properly it is time for a fix. Somebody could get hurt out there. As for what to do while tipping over...don't let yourself get so marginal as to have to come to that point.

While chatting about crane repairs a public thanx goes out to Tom, dbl12. Turned off my crane by the console switch with someone blabbing out of hearing range a couple of days ago. Would not restart and suspected the kill switch locked blocking the start as it cranked just fine. Tom gave me advice on the fix and more information than I could find in my NewYorkCity telephone book size manual on the functioning of this part. We are all back together and operational yesterday. I am sure he is a highly proficient crane mechanic.

Good man to know.

I want to wire up a console kill/start switch for mine.

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[Ghillie]

think I had it made about 17' lattice . I can find out more if you want. Hate to see it not being used and so does my welder guy prob.

How would I figure a new load chart? One for jib installed.

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[Ghillie]

Ya that crane will move some good sized wood around even with the 8t cap. you will be surprised with the size of logs it will pick. once you use the same truck everyday you can really get a feel for its capacity and get the most out of it.

Not surprised, just very pleased

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[axetree]

if you dont mind me asking how much did you give for the crane how many hours?

 

[treevet]

How would I figure a new load chart? One for jib installed.

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That would be the challenge. We just operated it pretty much by feel and straight up most of the time (jib). Never an incident tho. Those small cranes are like using a small spinning rod for big bass...you can really "feel" them.

This was in the early 80's and I was the first one to use cranes for tree work including subbing crane companies around here and teaching or learning with them. I had done crane work on the east coast prior to that dating back to early 70's, then moved back to Ohio to marry a highschool sweetheart.

 

[treevet]

the same thing happens with our crane, if shut off by the console switch the engine cranks but doesn't restart..would like to know more about the fix tv

the wire goes to the fuel solenoid on the fuel injector pump and I could have gone there to get going but instead I just opened up the console and put together the two wires that interrupted the connection between the ignition and the fuel solenoid. Plan to replace both switches this week. But we are fully operational now.

 

[axetree]

haha small world Ghillie, i treated some ash trees on kauffman rd today two doors down and saw the crane sitting there after looking at your pictures realised that it must be yours, small world, hope you enjoy the crane! funny that i saw the crane and then get on here and see it again

 

[treevet]

haha small world Ghillie, i treated some ash trees on kauffman rd today two doors down and saw the crane sitting there after looking at your pictures realised that it must be yours, small world, hope you enjoy the crane! funny that i saw the crane and then get on here and see it again

he must be from the "United States" too.

 

[Ghillie]

if you dont mind me asking how much did you give for the crane how many hours?

They were asking $6825 for it. I didn't even ask about hours on a crane that's over 30 years old. I did talk to the crane shop that did A LOT of work on the crane in 2008.

 

[Ghillie]

haha small world Ghillie, i treated some ash trees on kauffman rd today two doors down and saw the crane sitting there after looking at your pictures realised that it must be yours, small world, hope you enjoy the crane! funny that i saw the crane and then get on here and see it again

To the North or South of me?

 

[Ghillie]

That would be the challenge. We just operated it pretty much by feel and straight up most of the time (jib). Never an incident tho. Those small cranes are like using a small spinning rod for big bass...you can really "feel" them.

This was in the early 80's and I was the first one to use cranes for tree work including subbing crane companies around here and teaching or learning with them. I had done crane work on the east coast prior to that dating back to early 70's, then moved back to Ohio to marry a highschool sweetheart.

As much as I would like to have a bit extra reach at times, I think I will stay with what I currently running. I can always have the climber rig the taller stuff down to where I can reach it. Even doing that, it will be a step up in productivity.

I see this crane as a "stepping stone" of sorts. It will more than pay for itself this year and next year I will look at something more in the 80' main boom height, somewhere around 17T. That will be about all I need for this territory.

I actually spoke with the company that bought out Pitman and they seemed to think that fabbing up a new 22' jib, which is on my chart and was an option, wouldn't be a big deal.

 

[pdqdl]

Ghillie:

In case you didn't know, cranes are generally rated in foot-pounds of torque. Pretty much all you need to do is know the weight of your boom and it's center of gravity at any given length. Then it's a snap to add load and calculate the torque applied perpendicular to gravity.

The only tricky part is knowing the center of mass of the boom that may be moving in or out. Add a jib and you significantly change the center of gravity. Naturally, this also extends your height.

I recently did a crane job with a 30 ton crane. The operator was at about his maximum reach of 75' off the end of the truck. I asked him if putting the jib on would help, and he told me that it actually reduced the lateral reach of the truck. It only added weight and height, which did nothing to improve the torque capacity of the crane or to lower the center of gravity of the boom.

He was pretty much telling me that adding a jib will only increase the height of your crane's reach, while it reduces the capacity.

 

[Ghillie]

Ghillie:

In case you didn't know, cranes are generally rated in foot-pounds of torque. Pretty much all you need to do is know the weight of your boom and it's center of gravity at any given length. Then it's a snap to add load and calculate the torque applied perpendicular to gravity.

The only tricky part is knowing the center of mass of the boom that may be moving in or out. Add a jib and you significantly change the center of gravity. Naturally, this also extends your height.

I recently did a crane job with a 30 ton crane. The operator was at about his maximum reach of 75' off the end of the truck. I asked him if putting the jib on would help, and he told me that it actually reduced the lateral reach of the truck. It only added weight and height, which did nothing to improve the torque capacity of the crane or to lower the center of gravity of the boom.

He was pretty much telling me that adding a jib will only increase the height of your crane's reach, while it reduces the capacity.

I know enough to know I want to learn a lot more.

 

[no tree to big]

You probably have some air in your cylinders, and your check valves are not allowing movement until the pressure equalizes. When was the last time you checked the hydraulic fluid level?

Try running the problem cylinder all the way out and all the way in several times (horizontally or downslope if possible). See if it gets better. If not, you still probably have a problem with the check valves. They can be serviced and made to release pressure better than they are.

Movement of any hydraulic cylinder should exactly match the control lever at the valve; there should be no delay. That sounds dangerous to me.

yea air somewhere is a possibility and the check valves are probably crap too its an oldie but I do not own the crane and the ones who do are cheap and will say its always been like that, so it will never get fixed. O hydro is good

couple of you guys sound like maybe some unsafe practices going on...If any movement is not functioning properly it is time for a fix. Somebody could get hurt out there.

if it was something other then booming in or out I would see it as a big safety thing but how often is booming in or out the thing that saves the day? hasn't bothered us yet so i'm not to worried.

As much as I would like to have a bit extra reach at times, I think I will stay with what I currently running. I can always have the climber rig the taller stuff down to where I can reach it. Even doing that, it will be a step up in productivity.

I see this crane as a "stepping stone" of sorts. It will more than pay for itself this year and next year I will look at something more in the 80' main boom height, somewhere around 17T. That will be about all I need for this territory.

I actually spoke with the company that bought out Pitman and they seemed to think that fabbing up a new 22' jib, which is on my chart and was an option, wouldn't be a big deal.

on an 8t crane a jib would be almost useless unless you were almost verticle the whole time. the one boom we run is a 14t with a 63' stick it has a two stage jib, if your using just one stage you could still make picks with it if they were tiny weight capacity is almost non existant if you pull the second stage out you only have like a 500lb capacity at a decent angle and it looks like you hooked onto the titanic with an ugly stick.

 

[mattfr12]

lol hooked on to the titanic with an ugly stick. k-booms look like that wether you lifting a package of hotdogs or a 10k piece. takes a while to get use to it.

 

[tree md]

I learned on a 23 ton with a jib. Hated having to set up that jib at times but we were always good for at least 500 with it. Sometimes it was the best option.

 

[pdqdl]

I know enough to know I want to learn a lot more.

That's the hallmark of an educated man. I was told once that a man is wise according to how well he knew the limits of his knowledge, rather than how much he knew.

Myself? I keep enthusiastically stuffing more information into my head, but it keeps falling out all the holes in my somewhat hard head. I don't seem to be able to learn everything I want to know.

 

[treevet]

I learned on a 23 ton with a jib. Hated having to set up that jib at times but we were always good for at least 500 with it. Sometimes it was the best option.

sometimes a 500 lb pick is hugely helpful in the top

 

[treevet]

That's the hallmark of an educated man. I was told once that a man is wise according to how well he knew the limits of his knowledge, rather than how much he knew.

.

This wise man?

[video=youtube_share;_VrFV5r8cs0]http://youtu.be/_VrFV5r8cs0[/video]

 

[pdqdl]

I don't think Dirty Harry was talking about mental limitations.