Wednesday, August 10, 2016

NINTH MAINLINE OPERATING SESSION

My railroad is settling into a regular operating pattern—at least when my slot in the area operating layout rotation does not conflict with holiday weekends.  Nineteen folk showed up to operate my railroad this past weekend.  Even with that many operators, most road freights “made do” with single man crews.  We prefer two operators for train crews so that both ends of a train can be observed.  Dispatcher communications handled by a conductor is important with the verbal (over the radio) operating system employed.  With a single person “crew”, one has to handle both throttle and radio.  No one was complaining, though!

This session marked significant development of my “Santa Clara Tower” operator position.  This operator controls the traffic in and out of the Eugene Arrival/Departure Yard (lower level reverse loop staging).  The tower aspect of the job involves control of the many switches in this bottleneck area between the Eugene depot and classification yard and the arrival/departure (A/D) yard and engine facility.  The intent is that all road freights and Amtrak originate or arrive into the A/D yard.  This procedure is new to much of my operating crew, so it will take some time to fully accomplish.  Meanwhile, the “Santa Clara Tower” position worked well.


Vic N. surveys the Eugene Arrival/Departure Yard as part of his Santa Clara Tower duties.  Behind him, Rodger C. is getting ready for his train.

A note on the Santa Clara Tower:  I spent a great deal of time (off-hours) early in my working career in the San Francisco Bay Area photographing rail action “in the shadow of” the Southern Pacific’s Santa Clara, California, tower.  When friend Bruce Barney (ALW Lines: http://alwlines.com/ ) released a kit for this tower, I just “had” to get one.  I took note of the complex switch-work in the bottleneck area between the two major Eugene yard areas and realized I needed a tower operator here.  Though SP had few towers in Oregon, this location cried out for one.  As to name, the Santa Clara district of Eugene is on the north side of Eugene—very near to the SP yard.  Model RR Rule Number One applies here—It is MY railroad!  <wink>

The introduction of the computer-printed waybills (http://espeecascades.blogspot.com/2016/05/improved-car-movement-documents.html) has the impact of better car distribution.  Staging is beginning to fall into patterns I expected when designing the railroad.  A significant challenge involves staging the “XMUGs”—empty lumber cars returning to Eugene.  Several trains full of lumber box cars and flat cars need to return to Eugene from California marshalling points and the Ogden Gateway.  Conversely, the trains departing Eugene for those major reclassification points tend to be more mixed.  I was happy with the setup process for the trains at Eugene and for cars needed for the local freights, also from Eugene.  Staging for the ninth mainline operating session found a couple of XMUGs at Crescent Lake, so this session went well.  As I restage now after the session, I find I need to flesh out the car fleet a bit (cars are on-hand) to create the desired traffic.

My staging efforts for Eugene paid off, as the operating crew always had plenty to do AND we had lots of traffic on the mainline.  Indeed, this was the first mainline operating session that actually ran all of the trains on my standard line-up—over a dozen trains.  Usually, the crew tires out by the latter trains.

Here are more photos from this successful session.


As usual, the Eugene classification yard crew was busy throughout.  Mike B. ran the East Switcher.  Dave H, behind him, is working the Eugene City Switcher.  David B. (red shirt in distance) ran the West Switcher.  Beyond them on the other side of the aisle, Mike L. and Jim M. are working the first Springfield local.  This local switches the industries on the depot side of the mainline.


Bruce M. and Bob S. work the Oakridge Turn.


Dick K. gets clearance from the Dispatcher, while Steve C. awaits clearance to begin the trek RR-East downhill from Cascade Summit.


A helper is cut in at the RR-East end of Oakridge.  I need to work with crews to not do this, as the location of the end of the trains through a tunnel and over the bridge at Westfir.  Though compressed in distance on my model railroad, this would pose  a similar problem at the full-sized Oakridge.  Conductor Rick A. is getting asphyxiated in that to-be-built tunnel, while helper engineer Bob Y. breaths clear air out in the yard.  I need to add cross-overs in the Oakridge yard to assist this move without “endangering” the rear end crew! 


Bill M. watches the slack action closely as he helps a train uphill through Cruzatte.

My railroad has come to life sufficiently to simulate conditions on the real Cascade Line.  My operating crew faces problems similar to those encountered on the big railroad and they employ many of the same solutions.


Thursday, July 21, 2016

CABOOSE TRACK ACTIVATED

Preparing for the next operating session, I have been tackling a number of “little” tasks that were postponed for lack of time or higher priorities.  Such has been the fate of my caboose track in the Eugene Yard complex.  The caboose track is just off the RR-East switch lead, with switches close to the layout edge.  Therein lay the problem leading to delay.  These switches use Blue Point manual throw switch machines, just as many within the yard complex. 

The Blue Point throw arm is 7/8 inch below the underside of the subroadbed.  My standard throw rod mount through the fascia is 1-1/2 inch below the subroadbed to provide for an inset knob on the layout face.  This leads to a very difficult mechanical function unless the throw rod can be attached to a lower point on the switch machine.  My prior attempts at mounting close-to-layout switch machines involved a switch machine throw bar bracket that lowered the mounting point.  These have not been completely successful.


Former offset throw rod bracket on Blue Point switch machine mounted near layout edge.  Brass bracket mounts to Blue Point throw bar at top.  Throw rod through the fascia attaches at bottom of bracket.

My former offset mounting bracket was a case of me getting too complicated—because I could.  Sometimes it is a curse to have well-developed modeling and small parts fabrication skills.  This was one of those times.

After thinking about this for a long time, the idea light bulb finally lit!  All I needed was an offset of the entire switch machine further below the subroadbed.  My Intro to Mechanical Engineering professor’s words are now ringing in my ears:  “The SIMPLEST solution usually is the BEST solution!”  Color my face red and my forehead properly smacked by hand palm.  All I needed to do was mount a spacer block for the switch machine, dropping the throw bar to my standard layout fascia throw rod mount location.


New Blue Point mount with the machine moved further from the subroadbed with a spacer block.

With this roadblock cleared, I could mount switch machines for the switches at either end of the caboose track.  The track switches have been on the layout for most of a year.  Now they are ready for service.  While I was at it, I mounted the switch machines for the Oregon Electric Interchange track, further along the switch lead.  That also prompted wiring said O.E. Interchange track and the switches.  Now I just need to add some waybills for transfers to and from the Oregon Electric (BN).



SP 2732 switches the caboose track.

Saturday, July 9, 2016

THROTTLE MAINTENANCE

One issue that can develop with North Coast Engineering’s (NCE) engineer throttles with potentiometers (Cab04P and Cab06P) is that the potentiometer shank can develop a wobble.  The throttle knob is fairly large (a good thing!) so it is possible to put the wrong torque (not the potentiometer rotation—rather more of a side-to side forcing) on the shank.  Alas, one of my throttles developed this malady.  The solution is two-fold:  replace the damaged potentiometer and add support for the throttle knob.

The first step is to acquire a replacement potentiometer.  The NCE website lists replacement parts with this potentiometer listed: NCE Part 524-507  http://www.ncedcc.com/ - !online-store/c1n1m/!/Replacement-potentiometer-for-Engineer-Cabs-Cab04-5-6-limit-2/p/40150682
This is a “free” replacement (limit 2), but that is good really only if you have other work going on at NCE.  Another alternative is to go to the “Parts and Pieces Depot” on the NCE webpage and then look at the DigiKey parts list.  Listed there is:
potentiometer for engineer cabs  - cab04 /06   Digikey 987-1276-ND
manufacturer part number  P090S-04F20BR10K
I used this option and ordered several potentiometers, as I can see that over time I may need to replace more potentiometers.  The parts are fairly cheap so order a small batch!

With the replacement potentiometer in hand, I then opened up the throttle.  With this, I could de-solder the bad potentiometer and replace it.


 Throttle opened up for access to the potentiometer, sticking up from the printed circuit board.

Upon reassembly, the second task could be addressed—adding support for the throttle knob.  I cut a couple of thick felt circles wider than the knob.  I punched a hole in the center using a simple punch made from sharpened brass tubing.  The felt disks were then fit over the potentiometer shank, followed by NCE’s rubber disk that fits inside the knob.  The knob was attached with an Allen wrench.  A quick check showed the throttle was ready for service!


 Reassembled throttle awaiting felt disks for knob support.


 Knob attached, batteries installed, and throttle checked.  Good to go!