[PRCo] Re: OT Boston

[Russell E Jackson]

On what?  On CTA 6000s, at least 500,000 miles.  (they pay no attention to
flats)

Russ



                                                                           
             "Boris Cefer"                                                 
             <westinghouse at iol                                             
             .cz>                                                       To 
                                       <pittsburgh-railways at dementia.org>, 
             04/27/2007 12:30          "Russell E Jackson"                 
             PM                        <russell.jackson at stvinc.com>        
                                                                        cc 
                                                                           
                                                                   Subject 
                                       [PRCo] Re: OT Boston                
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




Is there any approximate estimate of a wheel (tire member) life?

B

----- Original Message -----
From: "Russell E Jackson" <russell.jackson at stvinc.com>
To: "Fred Schneider" <fwschneider at comcast.net>; <boriscefer at yahoo.com>
Cc: <pittsburgh-railways at dementia.org>
Sent: Friday, April 27, 2007 5:57 PM
Subject: [PRCo] Re: OT Boston


> Boris - Fred is basically correct as to the legal issues, although you
> will
> find opening windows on a number of other cars, particularly in San
> Francisco.  We know that FWS is always on a soap box.  But I think it is
> still sensible to air condition the cars.  You cannot have them be the
> only
> not air conditioned part of the fleet.  It is not a museum.  As for the
> wheels, I seem to remember that the issue was bad ground shunts, with the
> possibility of not shunting the signal circuits.  (Another badly managed
> outfit in Philly had many cars operating with broken shunts.)   It is
said
> that there were several instances of this, which brought the Public
> Utilities Commission into the picture.  In a typical Boston stupid
> decision, they got rid of the resilient wheels.  They disappeared on the
> CTA because they were using only the D-1 wheel, and cracks were occurring
> in the welded back plates, and the manufacturer had left the business and
> had no interest in improving the design.  I cannot say I know why a
> different wheel design such as the SAB was not considered, except that
> back
> then they were not in the US market at all.  So it was easy (and cheaper)
> to change to the solid wheels.  The wheel life in those light cars was so
> long that they lasted from one truck overhaul to the next, so there was
no
> great change in maintenance costs.   Kashin says that one Brooklyn car
was
> tested with the SAB wheels, but there is no picture or document proof
that
> I know of.  Possibly at SAB in the archives.  Or in a Kashin box
> somewhere.
>
> Russ Jackson




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