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Hood hatch on SW1000

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  • Member since
    June 2021
  • 1 posts
Hood hatch on SW1000
Posted by t.mauery on Tuesday, June 29, 2021 6:50 PM

What is the purpose of the black hatch on top of the hood near the cab on this BN SW1000?

http://www.rrpicturearchives.net/showPicture.aspx?id=642694

  • Member since
    May 2004
  • 6,874 posts
Posted by 7j43k on Wednesday, June 30, 2021 9:47 AM

Looks like it's for accessing the "Engine Oil Bath Air Filters".

I went to the Fallen Flags website, where they have copies of various "shop manuals" for locomotives.  I found one for the SW1500.  On page 1-1, it has a drawing with reference numbers for various items.

 

Ed

 

I'm coming back to this topic a bit later.

First, the only online photo I could find that showed anything concerning that area:

 

 

 

You can see a grey box in that general area, though on the wrong side.  Maybe that's the filter in the drawing.

I do note that this special access hatch is extremely rare on these engines.  That gets me thinking that perhaps it's related to putting in a different kind of air filter, one that needed more/different access.  I wonder at a regular (non-oil bath) filter that might need replacement, on occasion.

A quick look at photos shows BN 380 also had a feature like this.  There may be others.  Maybe the new hatch is only "extremely rare" on non-BN switchers.

I looked at BN SW1500's, and didn't see any.  Maybe they're more "crowded" in that area.

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