Detroit Deisel

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chris kennedy

chris kennedy

Senior Member
Location
Miami Fla.
Occupation
60 yr old tool twisting electrician
I want to answer a couple questions from this thread without hijacking it.

CRMGenerator013.jpg


CRMGenerator021.jpg


COFFEE TIME said:
whats the hp of that baby
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Around 2300

mark32 said:
Anyway, how does that fan blade move any air, it appears to be flat.
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The fan is inside the large black enclosure along with the radiator.

It moves so much air I strongly recommend safety glasses along with ear plugs when you fire these up.

Also make sure the generator enclosure itself is spotless and everything is secure. Anything loose can be blown into the radiator.

Here are the specs.
 
I was working in a sewage lift station that had one of these installed. Entire room was nothing but walls of louvers. When it fired up, it moved so much air that it was impossible to stand upright without grabbing something solid to hang on to. More like a wind tunnel than anything.
 
I am not a professional rigger but to my eyes they are misusing those straps and should be using the provided lifting points. I would also be telling the guy to get a ladder.
 
iwire said:
I am not a professional rigger but to my eyes they are misusing those straps and should be using the provided lifting points. I would also be telling the guy to get a ladder.
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Good eye Bob. The mechanical contractor did the rigging. Those straps are 9000lb rated each. We were very nervous about that lift. This genny was 30,000lbs, 29,000lbs in the crane cab. We had a 36,000 pounder drop a couple inches back onto the flatbed a couple years ago when the straps snapped.
 
iwire said:
I am not a professional rigger but to my eyes they are misusing those straps and should be using the provided lifting points. I would also be telling the guy to get a ladder.
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I agree Iwire. We have to use spreaders and slings in the factory holes. We have a very good crane company that sends out good riggers on every large lift I do. They do a better job than my guys because they know exactly what slings, chokers or chains to use.
 
chris kennedy said:
Good eye Bob. The mechanical contractor did the rigging. Those straps are 9000lb rated each.
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My main issue was that the straps are wrapping around hard corners, I do see they have some protection on the edges but I would have wanted to see steel bars run through the holes in the frame and the straps run to those bars.


We had a 36,000 pounder drop a couple inches back onto the flatbed a couple years ago when the straps snapped.
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That will leave a mark. :D
 
I work on quite few of them and that is pretty nice size unit there and Yes Chris is correct with the fan itself it will really move the air.

One call I did get when the generator can not get up to full power due the louvers some are stuck.

Yeah it did bent the door by vaccum from the fan.

That unit do have pretty good fuel rate it will burn at 98 gallons fuel per hour at full power rating at stand by mode that come down to 1.6 gallons per miniute.

I was not too thrilled how the riggers used that strap like that it can really destory the generator like that they should used the factory hole and spreader bar.

I work on larger unit 2.5 megawatts that did burn fuel far more than ya can imaged and it do burn 180 gallons fuel per hour and the fan that is huge { it will need about 150 ~180 HP just to run the fan alone }

Yeah they are pretty loud for sure.

Merci,Marc
 
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iwire said:
I am not a professional rigger but to my eyes they are misusing those straps and should be using the provided lifting points. I would also be telling the guy to get a ladder.
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I would also tell the rigger not to stand on my genny. But after I wire her up, my footprints will be all over her.:D

My one-year old son titled and entered this post while I was in the other room.
 
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I have a job in progress with (3) new 1000 kw's, relocating (1) 2000, removing one 1250, (all of which are 277/480V) and (1) new 2250 kw 4160V which is barely big enough to start it's intended load.

We lifted the 1250 two weeks ago and set it on a low boy for a temporary EM source until the 1000's are online, spreader bars and the factory lifting holes were used after pumping most of the fuel from the 2000 gallon day tank to get the weight down to around 53,000 lbs from 64,000 lbs.

The crane was a 100 ton.

Roger
 
roger said:
I have a job in progress with (3) new 1000 kw's, relocating (1) 2000, removing one 1250, (all of which are 277/480V) and (1) new 2250 kw 4160V which is barely big enough to start it's intended load.
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What type of facility is this?
 
iwire said:
Roger's summer residence. :cool:
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Whoa, it's not that big, although at times I could use these sources to power some irrigation pumps for the garden . :wink: :smile:


Roger
 
Had a 400KW one time that was supposed to be set up for a push thru fan. The radiator was ducted thru an outside wall with gravity louvers. CAT startup man started the unit for the first time. It didn't take us long to figure out the fan was pulling instead of blowing, I'll never forget that sound.
 
I got in trouble from one client even while using lifting bars and straps. they made it clear that they wanted us to use lifting eyes only from the factory lifting points.
 
I had one that was for a cellular switching station, the engineer for the job called for motorized shutters at the end of the genset. I was called in when the generator vendor said the shutters were not wired correctly and were not working, when I got to the job and seen where they were located, I knew it was not an electrical issue, the generator started much faster than the butterfly shutters could open, causing them to be blown out of the frame. gravity shutters should have been specified, as the owner would not allow a time delay to allow the shutters to open fully before the generator started. They went back to another site that this engineer had designed and found the same problem.
 
hillbilly1 said:
I had one that was for a cellular switching station, the engineer for the job called for motorized shutters at the end of the genset. I was called in when the generator vendor said the shutters were not wired correctly and were not working, when I got to the job and seen where they were located, I knew it was not an electrical issue, the generator started much faster than the butterfly shutters could open, causing them to be blown out of the frame. gravity shutters should have been specified, as the owner would not allow a time delay to allow the shutters to open fully before the generator started. They went back to another site that this engineer had designed and found the same problem.
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thats funny - blame the electrician:D
 
I agree there is no protection on the corners of the skid were the strap goes around and i see from the pic the one strap has damage to it. I do not know if the red string is showing but looking at how much its frayed i bet it is. You don't need a spreader on that load and the strap angles look very good.
 
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