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Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

Big Motor in a Bad Spot


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  #1  
Old 07-21-2018, 11:13:19 PM
AngrySailor AngrySailor is online now
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Default Big Motor in a Bad Spot

So this blew up today... itís one of the unloading conveyor motors. Itís as far down in the bowels of the ship as you can get, has to be lifted over the other motor, around the end of the port conveyor then up three decks. Best guess is it weighs at least 1500 lbs oh, all the nuts and bolts are rusted bad and we have a load of grain on so no hot work
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Old 07-22-2018, 06:39:33 AM
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Default Re: Big motor in a bad spot

Angry:

It's good you are a young guy. Us Old Farts would probably vapor lock doing that.

Have fun!
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Old 07-22-2018, 07:39:42 AM
Phil P Phil P is offline
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Default Re: Big motor in a bad spot

Hi

I disassembled a diesel on a DC generator to get it out of the ship.

Then rebuilt the diesel test ran it for a number of hours dissembled it again put it back in the ship and reassembled it.

Still running 30 years later. LOL

I would use an air hammer with brass tooling to disassemble that unit in to pieces light enough to be manageable.

Then do the same with the repaired or replacement unit.

Phil P
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Old 07-22-2018, 01:12:20 PM
Power Power is offline
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Default Re: Big motor in a bad spot

Looks like maintenance may have been a tad light. While you are at it, I would have someone pop the cover on the gear reduction unit, and see how it is doing. Clean and change oil at least. so you guys are not back in there for a while.
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Old 07-22-2018, 01:19:07 PM
Wayne 440 Wayne 440 is online now
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Default Re: Big Motor in a Bad Spot

"...vapor lock..."
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Old 07-22-2018, 02:03:53 PM
Vanman Vanman is offline
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Default Re: Big Motor in a Bad Spot

Too much moisture way down there ruin the windings? Do those motors have heaters to keep them warm when they're not running?
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Old 07-22-2018, 04:01:34 PM
Newoldstock Newoldstock is offline
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Default Re: Big motor in a bad spot

Quote:
Originally Posted by Power View Post
Looks like maintenance may have been a tad light. While you are at it, I would have someone pop the cover on the gear reduction unit, and see how it is doing. Clean and change oil at least. so you guys are not back in there for a while.
Dirt is a natural part of moving bulk products like this.
The slip rings tell me a different story.
Clean and shinny, someone has been doing PMs on it ( or it failed very early )

Where I work we get PMs then we are told we can not shut it down and we will not be allowed to stone rings or anything else.

They get dirty ugly messed up until they fail.
Angry Sailors workplace looks well cared for by my eye. ( notice all the lights work )
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Old 07-22-2018, 04:10:23 PM
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Default Re: Big Motor in a Bad Spot

Grain dust and any spark is a disastrous recipe! Friend of mine has an OLD feed and grain mill that his Dad built in the early 40's. I have seen some things in there that made me cringe from a maintenance standpoint like OPEN magnetic switches for motors.
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Last edited by Motorhead; 07-22-2018 at 06:14:36 PM.
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