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AAR Circular Letter C-7569 |
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AAR Circular Letter C-7569 |
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October 31, 1990
Subject: Implementation of Modifications to Office Manual Rule 88
TO THE MEMBERS AND PRIVATE CAR OWNERS
AC-1661
(C-7569)
Gentlemen:
Following examination of comments in response to the Circular Letter solicitation of July 20, 1990, the Mechanical Division General Committee approved adoption of proposed revisions to Rule 88. (see Attachment A)
Mandated implementation is scheduled in two phases as follows:
| Effective Date Rule | Rule Coverage |
| November 1, 1990
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All portions of revised Rule 88 except the newly enacted changes to the Mechanical requirements of Section C.3. All portions, including Mechanical Requirements (Section C.3), except that those newly introduced enactments applying to rebuilt units which require submittal of stress analysis in applications for approval by the Car Construction Committee, (Section C.2.c (1) will be waived until January 1, 1992. Note that other existing requirements of Rule 88 which were not affected by this revision remain in force. Submission of stress analysis for modified units is still required under Section C.2.d. (1) and requirements of Section C.3.b. also remain in force. |
Minimum Mechanical Requirements
| Category | Specifications | Rebuilt | New |
| (10) Painting and Stenciling (continued) |
(c)---Superstructure owner. -------Superstructure number. -------Original date built (month and year). -------Rebuilt (month and year). |
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| (11) Roller Bearings | (a) Units must be equipped with journal roller bearings of AAR approved designs. |
R |
N |
| (12) Roof Coating | (a) Box cars must not have underside of roof coated with an asphalt base material. |
X |
X |
| (13) Sealing Devices | (a) Covered hopper cars to be equipped with sealing devices on outlet in accordance with Manual of Standards and Recommended Practices, S-233. |
X |
X |
| (14) Sills |
(a) Body center plates must meet the design and application requirements of paragraph 4.4.14 in the Specifications for Design, Fabrication and Construction of Freight Cars. |
N |
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| (b) Flanged type body center plates must be attached in accordance with the requirements of S-204 of the Manual of Standards and Recommended Practices. |
X |
X |
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| (c) Body center plates consisting of cylindrical bowls welded to backing plate or car body without an AAR approved interlocking feature are prohibited, unless the design is approved by AAR. |
X |
X |
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| (d) Center sills must conform to Specification M-1001, Design, Fabrication and Construction of Freight Cars, Section 3.1.2.6.1 (b) and (c) does not apply to rebuilt units. |
X |
X |
Circular No. D.V. 2174
Association of American Railroads
Operations and Maintenance Department
Mechanical Division
_____________________________________
Result of Letter Ballot Circular
Office of the Secretary
50 F Street, N.W.
Washington, D.C. 20001
____________________________________
November 9, 1990
TO THE MEMBERS:
At the Annual Business Meeting of the Mechanical Division, held on June 21, 1990, recommendations from the committees of the Division were ordered submitted to letter ballot vote of the member roads. These recommendations, identified as Proposals, were presented in Circular No. D.V. 2172, dated July 31, 1990, and this document contains the results of the letter ballot vote. However, only summary descriptions of proposals are provided herein. For complete information defining each proposal, refer to the descriptions and references contained in Circular No. D.V. 2172.
Votes on letter ballots are proportionate to the ownership of equipment as per Section 3 of Article IV of the Articles of Organization of the Mechanical Division, as documented in Circular No. D.V. 2077, dated April 30, 1986.
The affirmative vote of members owning or controlling 438,199 revenue freight cars is necessary for approval of matters affecting freight equipment, the total revenue freight cars represented in the Division being 876,397.
Proposal Nos. 1, 2, 8 and 9 received unanimous approval of member roads. Proposal Nos. 3, 4 and 5 were also approved. After thorough consideration of reasons both pro and con for adoption, Proposal No. 7 received approval with stipulations. Proposal No. 6 was returned to the Car Construction Committee for further review pending report from the Research Committee.
Respectfully,
Betty J. Payne
Secretary
Recommendation From the Brake Equipment Committee
Proposal 1
The proposal recommending the adoption of proposed Standard
S-4003, covering trainline arrangements on cars with end-of-car
cushioning, was unanimously approved to become effective
January 1, 1991.
| CARS | |
| In Favor | 876,397 |
| Against | 0 |
Recommendation From The Coupler and Draft Gear Committee
Proposal 2
The proposal recommending the acceptance of revisions to Field
Manual Interchange Rule 21, to prohibit application of listed Groups
A, B and C draft gears after January 1, 1994, was unanimously
approved.
| CARS | |
| In Favor | 876,397 |
| Against | 0 |
Recommendations From the Wheels, Axles, Bearings and Lubrication Committee
Proposal 3
The proposal recommending the adoption of a narrow flange version
of the AAR-1B design received 121,565 negative votes. The new
reprofiling requirements were approved by the majority vote of
member roads to become effective January 1, 1992.
| CARS | |
| In Favor | 754,832 |
| Against | 121,565 |
Proposal 4
The proposal recommending the revision of Office Manual Rule 88.B.
to require that new cars be equipped with new journal roller bearings
and rebuilt cars be equipped with new or reconditioned journal roller
bearings, received 151,333 negative votes. It was approved by the majority
vote of member roads and is effective January 1, 1991.
| CARS | |
| In Favor | 725,064 |
| Against | 151,333 |