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8162CF0C-5D5B-4905-B4B1-7372D3BE23A9651905AD-E040-4481-B3D7-C77C8672FB0881967F3D-62B3-4D90-BCFA-C449341C3434297CC605-55F0-41DC-808A-111E1DEDE6970CF980A9-7EC7-453D-AD46-F44B11FF3BE4E393FE56-3CBF-4C02-ACDC-A9C46979B17EC35531FD-D274-4368-8244-9D99329383DCTime for a few new ones!

Second from top you have to zoom in on the left side car and then look at the message scrawled on the lower window!

A fun idea for those that want to model protoytpically is in the last photo where you see two piles of sand inside CUS where the engineer needed a little extra traction for some reason! 😜 I think someone hit the wrong button or got a little excited!!

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651905AD-E040-4481-B3D7-C77C8672FB08Time for a few new ones!

Second from top you have to zoom in on the left side car and then look at the message scrawled on the lower window!

How about a little help? Remember that photos here are low-res (under 1,000 pixels on the long side), no matter how big they are when you post. I can't make out what's there. If you crop in on the original, to maybe just the car on the left, and post, might be able to read what's on the window.

David

Last edited by NKP Muncie
@NKP Muncie posted:

How about a little help? Remember that photos here are low-res (under 1,000 pixels on the long side), no matter how big they are when you post. I can't make out what's there. If you crop in on the original, to maybe just the car on the left, and post, might be able to read what's on the window.

David

”Choo Choo”   The cars were very dusty and people had written on the windows kinda like a “clean me” tag kids do to their parent's cars. I already deleted the pic from my phone so I can’t repost with a zoomed in shot.

A fun idea for those that want to model protoytpically is in the last photo where you see two piles of sand inside CUS where the engineer needed a little extra traction for some reason! 😜 I think someone hit the wrong button or got a little excited!!

This is not an uncommon sight in locomotive servicing areas and in terminating passenger station tracks.  I will try to explain it in a way that satisfies the curiosity without being so technical that it causes the reader to give up.

What happened is that an Emergency air brake application occurred, causing the PC Switch* on the locomotive to open, thus activating the relay which operates the sanders, and then continues depositing sand until someone has gone up into the locomotive cab or the control car cab, depending on which end is the controlling end of the train, and has physically moved the automatic brake valve to Emergency position, waited the prescribed period, and then moved the brake valve to Release position**.  That will reset the PC Switch and  stop the sanders.  After recovering brake pipe pressure, that employee would be required to make a 15 psi brake pipe reduction to apply the train and engine brakes if the passenger equipment was to be left standing.  

So, why did the brakes go to emergency?  It could have been intentional or in reaction to another condition.  Possible causes include:

  • Switchmen separating the train and leaving the angle cock open on the cars (and locomotive) which were cut away from.
  • PTC problems putting the brakes into emergency.
  • Switchmen adding cars to the train and not opening the angle cock slowly enough.
  • Engineer changing ends on the train and neglecting to cut out the brake valves on the end being abandoned before cutting in the brake valves on the new controlling end.
  • Actual emergency brake application by the Engineer, possibly to avoid striking a person or other equipment,  or because something else happened ahead of the train.

Regardless of what caused the Emergency brake application, the primary cause of the accumulated sand pile is failure of the responsible employee to promptly go into the cab and reset the PC switch by manipulating the automatic brake valve as described above.  Since nothing is known about the actual circumstance of these particular sand deposits, we will charitably refrain from using the word "lazy", though suspicions remain.

*  PC Switch (Pneumatic Control Switch): a relay device which senses rapid depletion of brake pipe pressure, and, when that condition occurs, kills traction power, deposits sand on the rail, and reduces the engine RPM to Idle.  There are some variations that can be specified by individual railroads, but the three I mentioned are the standard ones.

** . . . or to Handle Off position if the intention is to allow the brake pipe to remain depleted at zero PSI.

Last edited by Number 90

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