Revision History
ii SM 6495, Rev. 7, December 2008
Revision History
Rev. Date Nature of Revision
Original September 1996 Original Issue
1 March 1999
2 March 2003 Added new cam clamp in the parts list and updated the parts lists and
figures in general. Added Pedestrian Gate Arm Shield information.
Incorporated terminal block changes. Modified the Test Check List (Table
2-4). Miscellaneous format and editorial changes.
3 September 2003 Incorporated ECO EM-2035. Incorporated information on the redesigned
Power Down Module into the manual and added a new section on its
installation.
Incorporated ECO EM-2006. Added information on the torque readings for
the counterweight installation to include readings with the new torque
wrench being supplied as part of the Torque Wrench Kit (PN 467000-03).
Miscellaneous format and editorial changes.
4 March 2005 Incorporated ECO EM-2177 – Corrected part numbers. Corrected the
motor part number in the parts list. Removed the lists of X-bills from
manual and put the individual parts in the parts lists.
Incorporated ECO EM-2178 – Revised Figures A-4, A-5, A-6, and A-7 to
include the new snub diode. Added specific part numbers to the parts lists.
Items 300, 305, 310, 315 and 320 were added to the parts list for
N46782101 and N46782001.
Incorporated ECO EM-2215A – Removed the stiffener from the parts list
and revised Figures A-4, A-5, A-6, and A-7 to reflect the absence of the
stiffener.
In addition, modified the Warning at the beginning of Section 3 to account
for other mechanisms at a crossing.
Included maintenance switch installation in the manual.
Incorporated ECO EM-2221 – Changed part number X46703701 to
X46703702.
Incorporated ECO EM-2232 - Modified wiring diagrams.
Incorporated CRS-01341 – Added Safety Consideration in Section 3.1 to
prevent backfeed of other gate mechanisms at a crossing when performing
maintenance on one gate mechanism.
Miscellaneous format and editorial changes.
5 July 2005 Incorporated ECO EM-2283 - Added new version of Figure 2- 5.
Corrected identification of Item 320 in Tables 5-2, 5-3, and 5–4.
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