AAR Circular Letter C-9174

June 28, 2000

(c-9174)

Subject: Revision and Clarification of MSRP, Section G, Part II, Wheel and Axle Manual, Rule 1K21

TO THE MEMBERS AND PRIVATE CAR OWNERS

In Circular Letter c-9080, dated December 15, 1999, comments were solicited concerning proposed revisions to MSRP Section G Part II Rules II Rules 1K21 and 1K21 Paragraph 2.  No comments have been received and Circular Letter c-9100, dated February 8, 2000, implemented the revisions effective March 1, 2000.  The AAR Wheels, Axles, Bearings and Lubrication Committee has, once again, reviewed this rule and issues the following editorial revision to clarify the applicability of the requirements.  This editorial revision is effective July 1, 2000.

PRESENT RULE 1K21

RULE 1K21  Shops that desire to remove and re-apply roller bearing end caps for any reason, but are not currently certifed as an AAR approved roller bearing mounting facility, must request and receive specific AAR approval under 9A status.  To request such approval, an application must be made to the AAR c/o Chief, Technical Standards, Transportation Technology Center, Inc., P.O. Box 11130, Pueblo, CO  81001.  The following information must be provided:

REVISED RULE 1K21

RULE 1K21  Shops that desire to remove and re-apply roller bearing end caps for any reason, but are not currently certified as an AAR approved roller bearing mounting facility, must request and receive specific AAR approval under 9A status.  These requirements do not apply to wheel truing operations for passenger cars (Amtrak, transit or private business cars) or motive power.  To request such approval, an application must be made to the AAR c/o Chief, Technical Standards, Transportation Technology Center, Inc., P.O. Box 11130, Pueblo, CO  81001.  The following information must be provided:

This is your authority to update Section G Part II Rules 1K21 and be governed accordingly.  These revisions will be included in the next publication of Section G Part II of the Manual of Standards and Recommended Practices.

Sincerely,

Thomas J. Stahura