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New Zealand Railways Mechanical Codes

These codes were printed, and amended over many years, to provide information to the mechanical staff of the New Zealand Government Railways, and its successor, New Zealand Railways. This page includes those Mechanical Codes which may be of interest to FRONZ members. Where more than one issue of a code is available both have been posted as earlier issues may contain information of interest which has been deleted from later versions. Notes and correspondence have been appended to the end of the codes to which they refer.

Format Of Codes - These codes were originally published in loose leaflet booklet form of 8.5" (W) x 5" (H) size. The electronic versions have been converted to A4 page size and some page references may no longer be valid. Apart from this the original format has been retained as much as possible (with the addition of a copyright notice). Apparent errors in the original text have not been corrected. Amendments are shown in [] brackets and, where known, the amendment reference is included. eg [C.M.E.'s 24/563 of 21/9/1984]. ? indicates that the original text is unclear. {} indicate editors notes. (Dates are in dd/mm/yy format)

Warning:- T heses documents include descriptions of standards and techniques which may no longer be relevant or may not comply with modern standards. In particular, rail operators using Tranz Rail Ltd's tracks are referred to that company's codes and interoperability agreements for current practice. As these codes were "in-house" documents reference may be made to specialised terms and practices which were/are peculiar to New Zealand Railways. Modern readers should not make assumptions as to the definitions of these terms.

Disclaimer:- While all care has been taken in the preparation and conversion to electronic format of the documents, the Federation of Rail Organisations of New Zealand, Inc nor Toll Rail NZ are not responsible for any errors or omissions nor, in any event, shall they be liable for any incidental or consequential damages resulting from use of the information provided.

Copyright:- All documents are copyright and are published for the use of members of the Federation of Rail Organisations of New Zealand, Inc (formerly the National Federation of Rail Societies, Inc). They may not be reproduced, sold or hired in part or whole for commercial or monetary gain.

Code	Issue No	Title	Issue Date (d/mm/yy)	File/Link	Size	Date Posted (dd/mm/yy)
3	3	Axles	1/05/47	code_03_3.pdf	109kB	11/11/01
"	4	Axles	1/08/73	code_03_4.pdf	117kB	11/11/01
4	3	Wheel Centres	1/05/47	code_04_3.pdf	78kB	11/11/01
8	3	Injectors	1/05/47	code_08_3.pdf	74kB	11/11/01
10	3	Crank Pins	31/04/67	code_10_3.pdf	62kB	11/11/01
13	3	Piston Rods	1/05/47	code_13_3.pdf	77kB	11/11/01
15	3	Wheels and Tyres	15/05/50	code_15_3.pdf	113kB	11/11/01
"	4	Wheels, Wheel Centres and Tyres	1/06/72	code_15_4.pdf	184kB	11/11/01
18	4	Fusible Plugs	31/03/67	code_18_4.pdf	61kB	11/11/01
23	4	Electric Headlights, Generators, and Equipment on Steam Locomotives	1/05/47	code_23_3.pdf	66kB	11/11/01
28	3	Westinghouse BrakeAir-Reservoirs	1/05/47	code_28_3.pdf	76kB	11/11/01
"	4	Westinghouse BrakeAir-Reservoirs	1/03/73	code_28_4.pdf	60kB	11/11/01
30	4	Equipment Carried In Guards’ Vans	1/09/73	code_30_4.pdf	80kB	11/11/01
32	2	Laminated Elliptical And Coil Springs	1/03/34	code_32_2.pdf	86kB	11/11/01
33	4	Pressure Gauges	1/12/62	code_32_4.pdf	87kB	11/11/01
34	3	Safety Valves	1/05/47	code_34_3.pdf	64kB	11/11/01
36	3	Weighing of Locomotives	1/05/47	code_36_3.pdf	64kB	11/11/01
"	4	Weighing of Locomotives	1/04/83	code_36_4.pdf	52kB	11/11/01
37	4	Axleboxes For Locomotives and Rolling Stock	11/2/60	code_37_4.pdf	123kB	11/11/01
"	5	Axleboxes For Locomotives etc, and Rolling Stock	1/12/70	code_37_5.pdf	91kB	11/11/01
38	1	Axlebox Bearings	10/04/78	code_38_1.pdf	90kB	11/11/01
39	2	Classification Of Locomotive Repairs Effected In Workshops	1/05/47	code_39_2.pdf	75kB	11/11/01
40	4	Shopping Of Steam Locomotives For Repairs	21/03/61	code_40_4.pdf	72kB	11/11/01
42	3	Inspection Of Steam Boilers	1/05/47	code_42_3.pdf	64kB	11/11/01
43	4	Boiler Tubes and Flues	31/03/67	code_43_4.pdf	63kB	11/11/01
45	3	Drawgear On Locomotives And Rolling Stock	7/03/60	code_45_3.pdf	104kB	11/11/01
"	5	Drawgear On Locomotives And Rolling Stock	1/12/81	code_45_5.pdf	104kB	11/11/01
47	2	Standard Clearances	30/07/36	code_47_2.pdf	70kB	11/11/01
"	5	Standard Clearances	1/10/85	code_47_5.pdf	69kB	11/11/01
48	2	Locomotive, Rolling-Stock, And Auxiliary Equipment Sections	20/11/35	code_48_2.pdf	101kB	24/11/01
"	3	Schedule Of Locomotive, Car And Wagon And Auxiliary Sections (Part only)	1/07/83	code_48_3.pdf	97kB	24/11/01
49	2	Hydrostatic And Mechanical Lubricators	30/07/36	code_49_2.pdf	84kB	24/11/01
52	3	Manufacture Of Bolts And Nuts	26/01/51	code_52_3.pdf	157kB	24/11/01
"	4	Manufacture Of Bolts, Nuts And Threaded Bars	1/02/83	code_52_4.pdf	68kB	24/11/01
53	3	Manufacture of Rivets	26/01/21	code_53_3.pdf	97kB	24/11/01
54	2	Side And Connecting Rods	23/10/35	code_54_2.pdf	107kB	24/11/01
55	3	Westinghouse Brake And Steam-Heating Hoses	1/07/37	code_55_3.pdf	75kB	24/11/01
56	3	Guide Bars	1/05/47	code_56_3.pdf	96kB	24/11/01
58	4	Car Gangways	15/07/77	code_58_4.pdf	79kB	24/11/01
60	5	Non-Ferrous Castings	1/07/72	code_60_5.pdf	71kB	24/11/01
64	6	Instructions For Electric Arc Welding	1/07/70	code_64_6.pdf	75kB	01/05/02
65	5	Practical Training And Testing Of Manual Electric Arc Welders	1/09/69	code_65_5.pdf	121kB	01/05/02
67	3	Drop-Pit Rams, Cylinders And Pumps	15/05/50	code_67_3.pdf	74kB	01/05/02
68	2	Brake-Gear On Locomotives And Rolling Stock	28/10/36	code_68_2.pdf	123kB	01/05/02
"	3/4/5	Brake Gear On Locomotives And Rolling Stock	1/8/73	code_68_3.pdf	85kB	01/05/02
70	2	Power Reversing Gear	30/12/36	code_70_2.pdf	64kB	01/05/02
72	2	Branding And Storing Manufacturing Steels	15/01/36	code_72_2.pdf	68kB	01/05/02
73	3	Boiler Operation And Maintenance	1/05/47	code_73_3.pdf	92kB	01/05/02
"	4/5	Boiler Operation And Maintenance	31/3/67	code_73_4.pdf	94kB	01/05/02
74	3	Boiler Cleaning	1/05/47	code_74_3.pdf	80kB	01/05/02
75	3	Boiler Testing	1/05/47	code_75_3.pdf	72kB	01/05/02
82	4	“Float” On Bogie Rolling Stock	14/11/59	code_82_4.pdf	98kB	01/05/02
85	2	Electrical Instrument And Speedometer Repairs	1/05/47	code_85_2.pdf	65kB	01/05/02
86	3	Checking Of Speedometers	1/07/74	code_86_3.pdf	82kB	01/05/02
91	2	Carbon Steel Castings	29/04/60	code_91_2.pdf	89kB	01/05/02
91B	1	High Tensile Steel Castings For Transition Heads Drawing No.28148	---	code_91b_1.pdf	65kB	01/05/02
92	1	Classification Of Electric Locomotive And Electric Coach Repairs In Workshops	20/06/60	code_92_1.pdf	70kB	01/05/02
97	1	Classification of Repairs to Diesel Electric, Diesel Mechanical Locomotives, and Rail Tractors over 100 h.p. in Depots and Workshops	4/02/59	code_97_1.pdf	89kB	01/05/02
98	1	Classification Of Railcar Repairs Effected In Workshops	5/12/58	code_98_1.pdf	68kB	01/05/02

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