JLC TMCC Allegheny. Constantly un couple's the train no matter where at on the track running in command environment.Any input to this problem?
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You have to determine if the problem is mechanical or electrical. In other words, is the coupler opening from the strain of pulling the train, or is it being erroneously commanded to open.
Open the tender and disconnect the wiring to the coupler itself. See if the problem continues. If so, the problem is mechanical.
the fix might be to shoot some graphite into it, or take it apart and stretch the spring a bit.
If the coupler stops spurious opening when it is disconnected, then it is being commanded to open at the wrong time. With TMCC, a 1 microfarad non=polorized capacitor across the coupler leads is the fix.
thank you Roy.NickOriginally Posted by RoyBoy:
You have to determine if the problem is mechanical or electrical. In other words, is the coupler opening from the strain of pulling the train, or is it being erroneously commanded to open.
Open the tender and disconnect the wiring to the coupler itself. See if the problem continues. If so, the problem is mechanical.
the fix might be to shoot some graphite into it, or take it apart and stretch the spring a bit.
If the coupler stops spurious opening when it is disconnected, then it is being commanded to open at the wrong time. With TMCC, a 1 microfarad non=polorized capacitor across the coupler leads is the fix.
Did you get it fixed?
got this from mike reagan concerning a problem i was having with the tender coupler on my GS-64. it worked
You could install the 1.0uF 50V non polarized electrolytic cap between the two coupler leads, but the best fix is to ensure a solid ground between the coupler wire and ground. A poor ground is the culprit 90% of the time.
Hi Roy,I just got the capacitors in the mail.I ordered a bunch of them from the link you sent me, because I decided to do a few other steam engines that have the same occasional problem.I will install this weekend & let you know.Thanks SO much for all of your help.NickOriginally Posted by RoyBoy:
Did you get it fixed?
Thanks Forrest,I will check that out while I have the tender opened up.NickOriginally Posted by Forrest Jerome:
got this from mike reagan concerning a problem i was having with the tender coupler on my GS-64. it worked
You could install the 1.0uF 50V non polarized electrolytic cap between the two coupler leads, but the best fix is to ensure a solid ground between the coupler wire and ground. A poor ground is the culprit 90% of the time.
While I 100% subscribe to the caps for TMCC stuff, I start by disconnecting the coupler from the board and run it to see if it's mechanical or electrical. If it's mechanical, the capacitor obviously won't have any effect.
ROY I couldn't wait to get on here and tell you the capacitor fixed my problem.I ran the engine with 18 die cast coal hoppers for an hour and it did not un couple.The coupler fires open only when I command it to.Your the best thank you so much.Nick
