ESR 0605
OVERHAUL OF ARC CHUTES
Version 1.0
Issued June 2010
Owner:
Approved
by:
Chief Engineer Rolling Stock
Stephen White,
Technical Specialist Rolling
Stock Performance Standards,
Rolling Stock Access Integrity
Authorised
by:
Michael Uhlig,
Manager,
Rolling Stock Access Integrity
Disclaimer
This document was prepared for use on the RailCorp Network only.
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sufficient to ensure safe systems or work or operation. It is the document user’s sole responsibility to ensure that the
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Copyright
The information in this document is protected by Copyright and no part of this document may be reproduced, altered,
stored or transmitted by any person without the prior consent of RailCorp.
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Page 1 of 4
Engineering Standard
Engineering Standard
Rolling Stock
RailCorp Engineering Standard — Rolling Stock
Overhaul of arc chutes
ESR 0605
Document control
Revision
Date
Summary of change
(RSS 0605) 1.0
August 2007
Based on TRS 1675
(ESR 0605) 1.0
June 2010
Reformatted and renumbered ESR 0605
Summary of changes from previous version
Summary of change
Section
NOTE – If the final document is small enough for the ‘Contents’ and ‘Document control’
to fit on one page remove the page break between the existing pages 2 and 3.
HOWEVER if the ‘Document control’ page carries over to a second page separate
pages must be used for ‘Contents’ and ‘Document control’
Contents
1 Scope..................................................................................................................................................3
2 General ...............................................................................................................................................3
3 Asbestos ............................................................................................................................................3
4 Description.........................................................................................................................................3
5 Overhaul of arc chute assemblies...................................................................................................4
6 Reference standards.........................................................................................................................4
6.1 RailCorp standards ...................................................................................................................4
6.2 Other standards ........................................................................................................................4
© Rail Corporation
Issued June 2010
UNCONTROLLED WHEN PRINTED
Page 2 of 4
Version 1.0
RailCorp Engineering Standard — Rolling Stock
Overhaul of arc chutes
1
ESR 0605
Scope
This standard sets out the minimum requirements, procedures and tests for the overhaul
of high and low tension arc chute and arc box assemblies used on 48 class locomotives.
2
General
This standard shall be used in conjunction with the Manufacturer's Maintenance
Instructions MI 123005. The specification provides clarification, amplification and
additional requirements as appropriate.
Overhauled arc chute and arc box assemblies shall be required to operate reliably for a
minimum period of six (6) years.
All documentation regarding the overhaul of the assemblies shall be completed with one
copy retained by the Repairer and one copy sent to the Purchaser's Representative.
3
Asbestos
Asbestos can be a health hazard, requirements of Occupational Health and Safety
Legislation must be followed. 'Asbestos: Code of Practice [NOHSC:2002 (1988)] and
Guidance Notes [NOHSC:3002 (1988)], [NOHSC:3003 (1988)]' issued by Worksafe
Australia may assist.
4
Description
Contactors are used in the control of various pieces of equipment in the high tension (650
volts) circuit and low tension (74 volts) circuits.
The arc chutes fitted to these contactors contain asbestos must be replaced with non
asbestos material as specified in ESR 0403 specification for material for use in
locomotive arc chutes and dynamic brake grids.
© Rail Corporation
Issued June 2010
UNCONTROLLED WHEN PRINTED
Page 3 of 4
Version 1.0
RailCorp Engineering Standard — Rolling Stock
Overhaul of arc chutes
5
ESR 0605
Overhaul of arc chute assemblies
• Remove arc chute or box from the metal frame, if fitted.
• Disassemble the arc chute or box.
• Remove all metal work from the assembly and renew all threaded barrels, spring
washers and screws.
• Clean all metal work to ensure all asbestos is removed.
• All metal work shall be inspected for damage, such as thread damage, burred slots
and burning, and replace as necessary.
• The ceramic components shall be cleaned such that all surface contamination and
defects are removed.
• Clean dirt and built up contamination off bakelite covers. Replace if damaged.
• Replacements for the discarded asbestos components shall be manufactured using a
non-asbestos material as specified in ESR 0403 Specification for material for use in
locomotive arc chutes and dynamic brake grids.
• Reassemble arc chute or box.
• Fill any gaps between ceramic and non asbestos material with a suitable non
asbestos, high temperature, ceramic filler.
• Reassemble arc chute or box into the metal frame where applicable.
Note: Asbestos can be a health hazard, requirements of Occupational Health and Safety
Legislation must be followed. 'Asbestos: Code of Practice [NOHSC:2002 (1988)] and
Guidance Notes [NOHSC:3002 (1988)], [NOHSC:3003 (1988)]' issued by Worksafe
Australia may assist.
6
Reference standards
6.1
RailCorp standards
ESR 0550 Overhaul of 48 class locomotive engine assembly
ESR 0403 Specification for material for use in locomotive arc chutes and dynamic brake
grids.
6.2
Other standards
NOHSC:2002
Asbestos: Code of Practice (1988) Worksafe Australia
NOHSC:3002
Asbestos: Guidance Notes (1988) Worksafe Australia
NOHSC:3003
Asbestos: Guidance Notes (1988) Worksafe Australia
MI 123005 AEI General maintenance (control equipment)
© Rail Corporation
Issued June 2010
UNCONTROLLED WHEN PRINTED
Page 4 of 4
Version 1.0