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SA1A problem

I have recently acquired 2 A1A locos both new and when I went to run them there is a shorting problem at the bogie at the front of direction travel. Have stripped down to see what problem is and cant see anything wrong but as soon as I run in either direction there is sparks coming from area between bogie and body and smell of burning and directional lights go out. Have tested with a meter no fault found and the area above the bogie is not a conductor any one else had a problem like this

walkingthedog

17375 posts

Are they DC  or DCC?

WTD ........... Nurse, the screens.

Caiptean

2557 posts

Welcome to the forum!

 

I'd just try looking to see if there is a track pin or staple (etc) caught up in the mechanism first.....  Wink

I enjoy life - it gives me something to do! - especially modelling BR's Southern Region 1955-61.

walkingthedog

17375 posts

Bit unlucky if both have picked something up. I was thinking of DC running on a DCC layout. Probably not.

WTD ........... Nurse, the screens.

Caiptean

2557 posts

WTD

It would be unless both had run over a section of track where a number of track pins had been dropped (given the sparking) - my thoughts were it is simple to look (carefully as they can be hard to find) before moving onto more serious fault finding......

 

I wouldn't discount your theory just yet though!  Smile

I enjoy life - it gives me something to do! - especially modelling BR's Southern Region 1955-61.

RDS

3758 posts


Community Moderator

If they were bought new, take them back to the supplier if that is possible, otherwise you risk invalidating the warranty.

00 Gauge. DCC. Elite (v1.43) with Select (v1.0) as Walkabout. RailMaster Pro running on a Windows 10 Laptop. 18 Loco's. 2nd copy of RailMaster (Not Pro) running on Windows 10 Desktop and Networked to the Laptop. Handheld RM running on Android Phone. 3rd copy of RailMaster, still unopened!

StuBaggyBoy

26 posts

This sounds like the start of the dreadeded Mazak rot problem where the chassis starts to expand causing the wheels to come into contact and causing a short circuit. I know this as I had the same problem on a class 31. Have any of the body corners starting to split?

walkingthedog

17375 posts

Bit unlucky for both locos. I’ve only ever had it affect one loco out of about 150. 

WTD ........... Nurse, the screens.

jane2

88 posts

some pictures inside the loco may help , to help with wtd's theory if dcc does the loco "sing " when you place it on the track, 

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