[PRCo] Re: Boston Resilient Wheels

[Boris Cefer]

I think you are practically correct in all points. I do not know how many 
modifications of wheel shunts (bonds) MBTA used (I think that all SR wheels 
had them on the front side of wheel) but they are usually so hidden between 
the wheel parts that they are very difficult to damage. Only pretexts, no 
serious reason to get rid of resilient wheels. And if the track was bad, 
changing wheels is not a solution!

Boris

----- Original Message ----- 
From: "Phillip Clark Campbell" <pcc_sr at yahoo.com>
To: <pittsburgh-railways at dementia.org>
Sent: Tuesday, February 19, 2008 12:02 AM
Subject: [PRCo] Re: Boston Resilient Wheels


I have heard the same, Mr.Cefer.  Logic causes one to wonder why other 
systems didn't have similar problems with shunts but only Boston doesn't it. 
In some photos it appears that SR wheels have shunts 180 degrees apart on 
the front side plate so guard rails couldn't interfere here could they. 
Also from photos it appears that there could be shunts on the front plate of 
R wheels but can't really see them.  From what I can tell of shunts on the 
back side, the guard rails would have to be extremely high to hit the shunts 
wouldn't they and then these guards would probably interfere with the plate 
connecting the two track brakes on each truck and causing damage here.
Political interference is indicated in Mr.Schneider's comments isn't it 
while using safety as the concern.


Phil