Owner: Atchison Topeka & Santa Fe
Model:Rebuilt EMD SD26Built As:ATSF 968 (SD24)
Serial Number:25878Order No:5617
Frame Number:5617-24Built:6/1960
Notes:blt as SD24 968, to ST 640
Other locos with this serial:  ST 4668(SD26) ST 640(SD26) ATSF 4668(SD26)
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AT&SF SD26 4668
Title:  AT&SF SD26 4668
Description:  AT&SF SD26 4668 at Corwith Yard, Chicago, Illinois, September 1979, photo by Chuck Zeiler. Built in June 1960 as AT&SF SD24 968 (c/n 25878) on EMD Order 5617, it was renumbered to 4568, rebuilt to SD26 4668, retired by the AT&SF December 1986, sold to Springfield Terminal becoming ST 640. The Santa Fe SD24's were rebuilt at San Bernardino between January 1973-78, upgrading the locomotives to the then-current technologies. Included in the upgrade was replacement of the troublesome high voltage and transition circuitry with EMD's Dash 2 circuit cards, replacement of the 16-567D3 with a new 16-645D3 prime mover, which in turn boosted a unit's horsepower rating from 2,400 to 2,625, and installation of a central air intake and filtration system. The air intake modification created a hump on the roof behind the cab, forcing the air reservoir tanks (which had occupied that position) back along the roof. The as-built low short hood and one-piece windshield over the nose was retained, although in later years the one-piece windshield was changed to two-piece to have the same size and shape windshield glass across several classes of Santa Fe locomotives and simplify maintenance part stockpiles. The original SD24 blower bulge was replaced with a second generation blower housing. Some (but not all) received a cab roof air conditioner.
Photo Date:  9/1/1979  Upload Date: 8/27/2010 12:46:58 PM
Location:  Chicago, IL
Author:  Chuck Zeiler
Categories:  Roster
Locomotives:  ATSF 4668(SD26)
Views:  408   Comments: 1

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