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- Newsgroups: rec.railroad,aus.rail
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!batcomputer!munnari.oz.au!metro!basser.cs.su.oz.au!matthew
- From: matthew@cs.su.oz (Matthew Geier)
- Subject: Re: ICE trains withdrawn in October?
- Reply-To: matthew@cluster.cs.su.oz.au (Matthew Geier)
- Organization: Basser Dept of Computer Science, University of Sydney, Australia
- Date: Thu, 19 Nov 1992 22:19:03 GMT
- Message-ID: <1992Nov19.221903.5009@cs.su.oz.au>
- Summary: defective trains
- References: <1992Nov13.100136.3776@sq.sq.com> <TSOS.174.721926232@uni-duesseldorf.de>
- Sender: news@cs.su.oz.au (News)
- Lines: 40
-
- In article <TSOS.174.721926232@uni-duesseldorf.de> TSOS@uni-duesseldorf.de (Detlef Lannert) writes:
-
- >It's correct that they had problems with the rotor parts of the traction
- >motors. I don't know if any of them actually broke but cracks showed up
- >when the motors were inspected.
-
- A similar type of problem has showen up on Sydneys new 'Tangara' trains,
- a unit derailed in a yard because a bogie collapsed. It was then found that
- it an a number of other bogies in the set were cracked.
-
- >All motors had to be exchanged and the defective parts replaced. Luckily
- >enough (for DB), this was still covered by the manufacturer's warranty,
- >and Siemens had to pay for it (they indicated a cost of "not many" tens
- >of millions DM).
-
- They claim the same thing here as well, that replacing the defective bogies
- is being done as a warranty repair , only the cracks have been found in the
- older units, the oldest of which is well over 2 years old. I rather doubt that
- all are covered by warrenty.
-
- >The exchange and repair was done on the fly: The motors were replaced
- >during normal service periods, and there were enough spare trains so
- >that the normal schedule could continue. DB passengers shouldn't have
- >noticed anything (as long as they didn't read the papers ...).
-
- Thats what they are doing here, they cant pull the entire tangara fleet
- of the rails , the Suburban system cant run minus 70 train sets, so as
- part of their fortnightly inspections the bogies are being checked for
- cracks. At the last time the problem made the news , some 70 bogies had
- been replaced, which comes out at 9 sets withdrawn, although I doubt the
- 70 bogies neatly came 8 at a time off a given carrage set.
-
- (BTW these particular bogies were Japanese designed and have disk brakes
- instead of 'tread' ? brakes. When the trains switch from regenerative/dynamic
- braking to air as they slow down , the disk brakes emit a loud high pitched
- squeel, some times accompanied by strong low frequency vibration, no wonder
- they are cracking... )
-
- Matthew Geier,
- matthew@cs.su.oz.au
-