Supplement No. 1  To  Service Instruction No. 1535 

Counterweight and Roller Removal, Inspection, and Installation 

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DATE: December 13, 2011

Reason for Revision

This Supplement No. 1 is being issued to inform owners and operators of the following corrected metric values for Figure 2 Circlip Identification and Table 4 Gage Dimensions (Figure 4.)

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