Table of Contents
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Rev.
Date
*
September 1982
*
March, 2000
2
February 2005
3
April 2005
4
March 2019
* Revisions were identified by date only, no numbers were assigned to revisions.
Copyright 2019
Revision History
Original Issue
Revision
Incorporated ECO R-1150. Test and maintenance procedures
in the manual were updated. Reformatted manual.
Corrected resistor values in Figure 3-1; clarified contact block information in
Figure 4-1; and clarified contact assignments in Table 3-4.
Hitachi Rail STS Branding
SM 4574F, Rev. 4, March 2019
Nature of Revision
PV-250 Track Relay
ii
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Table of Contents
