SD40 Tour (50 Subscriber Special)

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Күн бұрын

Пікірлер: 36

@ut000bs 7 ай бұрын

This is what KZbin was made for. Five thumbs up. I caught your 25 subscriber video and had a craving flung on me for more. Watching that starter turn the flywheel and disengage was something perhaps only someone with their head stuck in there has ever seen before. A world-wide video first. I look up and see 432 subscribers and I'm afraid I'm going to have to make it 433. Sorry about that. lol

@CDROM-lq9iz 7 ай бұрын

Thanks lol. I'm honestly not sure you could even get your head in that spot to see that. I'm honestly pretty sure I found that spot by accident when trying to get a shot of the starters.

@KirkHermary 8 ай бұрын

I enjoyed this! Showing the startup was awesome.

@CDROM-lq9iz 8 ай бұрын

Thanks! I won't lie, I'm pretty proud of getting that shot.

@markypea8900 8 ай бұрын

This is cool! I picked this train up in Train Sim World 4 last week and have been playing it in VR, so it's great to see how the game compares to the real thing!

@CDROM-lq9iz 8 ай бұрын

Thanks for watching! I know as a technician, I've played a couple simulators and had both "I can't believe they got that right!" and "For the love of all that's good and holy how did you screw that up?!" Often in the same game lol.

@chuckh.2227 7 ай бұрын

Very cool Love the start ups

@CDROM-lq9iz 7 ай бұрын

Thanks!

@heavy-iron 7 ай бұрын

Had an interesting video idea if you have a slow day at the shop. Little-known lore about the older EMDs: If the unit goes into PCS due to penalty or emergency while the throttle is in position 5 or 6, the diesel engine will stop. This is due to the fact that only the 'A', 'B' and 'C' governor solenoids have an 'ER' contact in series. The 'D' solenoid (negative) does not. Throttle positions 5 and 6 are the only ones that utilize the 'D' solenoid. It's only other purpose is for stopping the engine in the case of moving the throttle to the 'STOP' position. (Which is incidentally a train-lined command via MU!) So if you get bored some time, it might be fun to see if that interesting little tidbit(s) still holds true on the newer dash-2 units. c:

@CDROM-lq9iz 7 ай бұрын

Thanks now I'm gonna have to dig a print out and check on my day off lol. This reminds me of an argument I've gotten into with guys before about the ground relay. Basically it boils down to "will a grounded dynamic grid cause the ground relay to trip during dynamics" and I would hold that it wouldn't, but guys would argue that it would. So one day I got a couple jumpers out and tested it for myself. Turns out, it won't. Also turns out, there was an option on some locomotives that made it so a grounded grid would trip the GR during dynamics.

@heavy-iron 7 ай бұрын

@@CDROM-lq9iz Huh, that's neat. Looking at the SD9 print I have here it looks like the same holds true. BKP1/2, BKB3/4 and SFT all act to set up three separate motor-resistor circuits, one of which is tapped off of to provide current to the isolated shunt field, brake warning relay and DB regulator in DB mode.

@CDROM-lq9iz 7 ай бұрын

@@heavy-iron I dug out a print and by the looks of the one I have; the engine should not shut down. All the governor solenoids are powered from the same wire that feeds the throttle switches. When the PCR drops out, all the solenoids should drop out. (That being said, I have another print for an engine with LOW IDLE and I think in that case the engine should go to LOW IDLE.) Can still try it though. Yeah, my confusion basically stemmed from "If the GR coil is between the neutrals of the main (AR10), how can current coming from the traction motors go through the GR and get back to the motors?" Turns out it can't, unless you modify the locomotive to mimic the add-on for dynamic grid grounds. Now, a grounded grid won't trip the GR during dynamics, but will trip it during a self-load test.

@heavy-iron 7 ай бұрын

@@CDROM-lq9iz Do those governors have a separate solenoid for engine shutdown then? Reason being if they rely on the 'D' solenoid for shutdown, none of the E-stops will work if the unit opens up that circuit during PCS. Obviously it will starve for fuel eventually without the fuel pump running but that could be five minutes or five hours.

@CDROM-lq9iz 7 ай бұрын

@@heavy-iron That's a good question. I know there's no separate shutdown solenoid, but without a print in front of me I can't say for sure how that circuit is set up. I'm pretty sure there's a separate feed that will energize the D solenoid when the FPCR drops out. That leg of the circuit bypasses the ER relay, throttle switches, IS, and everything. If I remember right, there's diodes that keep the signals from going back down a leg they shouldn't, but again, I'd have to get a print to say for sure.

@jeffstrains 8 ай бұрын

Cool video, I always like to see how this stuff works.

@CDROM-lq9iz 8 ай бұрын

Thanks! Some stuff is hard to explain with just pictures, hence why I use models in my other videos.

@ScottTaipaleRail 8 ай бұрын

Definitely would like to see a video on 2662 or whatever # it comes out of the shop as when it’s done.

@CDROM-lq9iz 8 ай бұрын

That could be arranged, although I'm willing to bet that locomotive will be hanging out in the shop for a hot minute lol.

@jeffstrains 8 ай бұрын

Good request, never thought of that.

@tlflapo 8 ай бұрын

I just started working at my local train depot (idk how you guys call it, since "depot" is the closet translation to the word we use here in Italy) and since I'm looking forward to move to the US in the next year, this type of vides are perfect to get used to the transaltions and terms used

@CDROM-lq9iz 8 ай бұрын

That's neat. Might I ask, what exactly do you do for the railroad?

@tlflapo 8 ай бұрын

@@CDROM-lq9iz maintenance for both the locomotives and carts; sometimes even basic "handiwork" on the station itself; my position is still unclear, but this is just how is Italy when it comes to young employees

@CDROM-lq9iz 8 ай бұрын

@@tlflapo gotcha. Sounds like you get some grunt work. Are you planning on staying in the industry in the US?

@tlflapo 8 ай бұрын

@@CDROM-lq9iz hopefully yes; I'm trying to find material regarding all the "electrical world", I know that even electrical schemes can change from county to county; when I worked in Portugal it took me a couple of months just to get used to their approach

@CDROM-lq9iz 8 ай бұрын

@tlflapo I see. I assume if you end up on a Class I (big railroad) you're hoping to end up as an electrician. I will say regarding schematics, at least where I work, we call them "prints" and the symbols used are a bit different from the ISO symbols used basically everywhere else. (Because why not right?)