This Supplementary Code relates to B3.1.1.01- Mechanical Code of Practice, Section 3.4.1 – Axleboxes and Roller Bearings. It contains NZ Railways Mechanical Branch Code No 37, Issue 4 of 11/02/1960; and NZ Railways Mechanical Branch Code No 37, Issue 5 of 1/12/1970, which contains information relevant to the maintenance of axle boxes on locomotives and rolling stock.

Code number B3.4.2.09

Version 1

Effective date 12 December 2006