Skip to main content

Good afternoon,

I'm having an issue with an MTH Imperial Allegheny PS 3.0 (item no 30-1615-1).  If I place the engine and tender on the track with 18VAC and the draw-bar "unplugged", I have no issues.  But as soon as I plug the draw-bar from the locomotive into the tender, this causes a short. 

Realizing the issue seems to lie within the draw-bar, I checked continuity between each of the pins.  I measured continuity between the two pins shown in the picture below.

20190814_191535

Assuming I should not receive continuity between these two points,  I unplugged the draw-bar JST connector that mounts to the locomotive frame.   After doing that, I no longer measured continuity across those draw-bar pins.   My guess is the issue lies some where in the locomotive.

20190814_191843

Any ideas what might be going on?

 

Attachments

Images (2)
  • 20190814_191535
  • 20190814_191843
Last edited by Lionel16
Original Post

Replies sorted oldest to newest

Not necessarily true.   Looks like that engine has a jumper for the drawbar connection.  Removing that removed AC power going to tender board.  Remove 8 pin on the engine board, leave that connector in, and apply power.  If still shorted you have a bad tender board.  But you can also have damage to the boiler board.

Best as Alan stated to let a tech test both boards on the bench tester with golden boards.  PS-3 steam is unique in both board communicate and need to be tested separately.  G

Add Reply

Post
The DCS Forum is sponsored by

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×