#how does lap breaking work?

48 messages · Page 1 of 1 (latest)

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how does lap breaking work on the F40PH?

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brakes on the F40PH are known as "manual lap brakes" basically you control the brakes manually

by putting the brakes in lap, it holds the brake at whatever the EQ is currently at
by putting it in service it reduces the EQ pressure
and finally in release you put the EQ at the running pressure (passenger trains are 110PSI)
You also have a hold position which recharges the brakes but doesn't release the brake cylinder

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EQ is the target pressure for your brakes, the BP is the actual brake pressure

random knot
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ah

random knot
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cuz i just see them as both funciton holding the break pressure

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hold will set the EQ to the running pressure but will not release the brakes on the cars

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lap will hold the EQ at whatever it currently is

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so hold will just

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apply breaks on the carriages

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but not the loco

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no

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it holds whatever brake set you have on the cars and engine, while releasing the brake pipe (BP)

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or
While running -> service breaking -> lap breaking?

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basically, yeah

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otherwise you use release

random knot
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ah....

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for some reason breaks are off max throttle and i have stalled why

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did you cut the brakes in and set the MU-2A valve?

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that

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cuz i have no idea

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i never driven a US loco before

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oh wait i found the MU-2A valve thingy

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its set a dead or lead

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ok the cut in valve is under the brake handle

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it's a gold lever

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i was driving at like 110mph before i came to a stop and stall and cant start again
No matter do i set it as in or out, train still aint moving

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okay i dont know what i did

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i set the cut in valve to out

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restarted the entire loco

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and then it moves again

sinful vapor
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Your locomotive is probably off

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A common mistake is moving the throttle to STOP instead of IDLE

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Which is very easy to do if you yank the throttle lever all the way forward or if you hold down the throttle down key.

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I think that's what happened given that there's no smoke coming out of the exhaust in your screenshot

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sinful vapor
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(Simulated)