International Railway Journal - July 2008 - (Page 53) Train maintenance Grinding out a result Recent developments in wheel lathe technology mean mobile lathes can now be a viable alternative to fixed installations. Andrew Roden talks to London Underground PPP contractor Tube Lines about its experiences. G RINDING wheels on London Underground’s Jubilee Line fleet at Stratford depot, East London, has long been a challenge. The conventional solution of an underfloor wheel lathe has never been an option because of significant archaeological remains on the depot site, meaning that trains had to be taken out of service at weekends and taken to another depot off-site for wheel reprofiling. It was expensive, time-consuming, and engineers have long sought a better way of reprofiling wheels, preferably at the depot. The contract engineer for Tube Lines, the company responsible for maintaining the Jubilee Line, is Mr Nick Clyne, and he is candid about the limitations of this policy: “Because of the equipment mounted on the trains, you can’t simply take the wheels off and send them for reprofiling, and we had to do without two trains for a whole week, putting the fleet under pressure at peak times. “I was really stumped about finding a solution until I discovered the idea of using a mobile wheel lathe. You jack the train up, and the wheel lathe drives underneath the vehicles and reprofiles the wheels.” After investigation, Clyne believed a mobile wheel lathe would allow two trains - one three-car and one four-car set usually coupled together - to be reprofiled at a weekend, and still be available for traffic at busy times from Mondays to Fridays. “It gave us an extra two trains a week, compared with the previous method,” confirms Clyne. Clyne was quickly in touch with German manufacturer Hegenscheidt, which makes the Mobiturn range of wheel lathes. These are mounted above ground, and are particularly suitable IRJ July 2008 53
Table of Contents Feed for the Digital Edition of International Railway Journal - July 2008 International Railway Journal - July 2008 Contents This Month News Transit News Market News/Technology News News Analysis Conference Report Korean Railways Face a Bright Future Korean Exports Surge Ahead Ready to Roll in China Velaro Shows Eastern Promise Are You Sitting Comfortably? Compin Meets New Challenges The Fabric of Society Grinding Out a Result Rendezvous Full Contact List The Last Word International Railway Journal - July 2008 International Railway Journal - July 2008 - International Railway Journal - July 2008 (Page Cover1) International Railway Journal - July 2008 - International Railway Journal - July 2008 (Page Cover2) International Railway Journal - July 2008 - Contents (Page 1) International Railway Journal - July 2008 - This Month (Page 2) International Railway Journal - July 2008 - This Month (Page 3) International Railway Journal - July 2008 - News (Page 4) International Railway Journal - July 2008 - News (Page 5) International Railway Journal - July 2008 - News (Page 6) International Railway Journal - July 2008 - News (Page 7) International Railway Journal - July 2008 - News (Page 8) International Railway Journal - July 2008 - News (Page 9) International Railway Journal - July 2008 - News (Page 10) International Railway Journal - July 2008 - News (Page 11) International Railway Journal - July 2008 - Transit News (Page 12) International Railway Journal - July 2008 - Transit News (Page 13) International Railway Journal - July 2008 - Transit News (Page 14) International Railway Journal - July 2008 - Transit News (Page 15) International Railway Journal - July 2008 - Market News/Technology News (Page 16) International Railway Journal - July 2008 - Market News/Technology News (Page 17) International Railway Journal - July 2008 - News Analysis (Page 18) International Railway Journal - July 2008 - News Analysis (Page 19) International Railway Journal - July 2008 - Conference Report (Page 20) International Railway Journal - July 2008 - Conference Report (Page 21) International Railway Journal - July 2008 - Conference Report (Page 22) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 23) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 24) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 25) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 26) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 27) International Railway Journal - July 2008 - Korean Railways Face a Bright Future (Page 28) International Railway Journal - July 2008 - Korean Exports Surge Ahead (Page 29) International Railway Journal - July 2008 - Korean Exports Surge Ahead (Page 30) International Railway Journal - July 2008 - Korean Exports Surge Ahead (Page 31) International Railway Journal - July 2008 - Korean Exports Surge Ahead (Page 32) International Railway Journal - July 2008 - Ready to Roll in China (Page 33) International Railway Journal - July 2008 - Ready to Roll in China (Page 34) International Railway Journal - July 2008 - Ready to Roll in China (Page 35) International Railway Journal - July 2008 - Ready to Roll in China (Page 36) International Railway Journal - July 2008 - Ready to Roll in China (Page 37) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 38) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 39) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 40) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 41) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 42) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 43) International Railway Journal - July 2008 - Velaro Shows Eastern Promise (Page 44) International Railway Journal - July 2008 - Are You Sitting Comfortably? (Page 45) International Railway Journal - July 2008 - Are You Sitting Comfortably? (Page 46) International Railway Journal - July 2008 - Are You Sitting Comfortably? (Page 47) International Railway Journal - July 2008 - Compin Meets New Challenges (Page 48) International Railway Journal - July 2008 - Compin Meets New Challenges (Page 49) International Railway Journal - July 2008 - The Fabric of Society (Page 50) International Railway Journal - July 2008 - The Fabric of Society (Page 51) International Railway Journal - July 2008 - The Fabric of Society (Page 52) International Railway Journal - July 2008 - Grinding Out a Result (Page 53) International Railway Journal - July 2008 - Grinding Out a Result (Page 54) International Railway Journal - July 2008 - Grinding Out a Result (Page 55) International Railway Journal - July 2008 - Grinding Out a Result (Page 56) International Railway Journal - July 2008 - Grinding Out a Result (Page 57) International Railway Journal - July 2008 - Rendezvous (Page 58) International Railway Journal - July 2008 - Full Contact List (Page 59) International Railway Journal - July 2008 - The Last Word (Page 60) International Railway Journal - July 2008 - The Last Word (Page Cover3) International Railway Journal - July 2008 - The Last Word (Page Cover4)
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