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Subject: 
Re: Problem with 7898 locomotive, turning off automatically
Newsgroups: 
lugnet.trains
Date: 
Sat, 29 Oct 2011 13:16:00 GMT
Viewed: 
26931 times
  
On 29/10/2011 17:39, Frances Schroeter wrote:
I was exhibiting lego trains at a recent model train exhibition.
A member of public came up to me with his 7898 locomotive.
The problem is that the locomotive keeps on turning off automatically when it
gets under load, such as going round corners, and when you press the remote
control more than the 7 times to get the seven speeds.
I have checked the motor and it works fine without any problems when I use it
with my 7898 locomotive, same goes for the wiring and for the remote control.
The problem seems to be in the battery box part, where there must also be the
receiver for the remote.
Hope this all makes sense.
My question is, does anyone have any ideas if this is fixable, and how?

Could it be a power source problem?  Rechargeable batteries verses
throw-away one?

Wonder if there is a resetable fuse in the power box for when the motor
draws more current than the circuit can handle.  On a straight level
track, the motor can draw up to 100ma but that rises when the motor has
to more work such as rounding bends.



Message has 1 Reply:
  Re: Problem with 7898 locomotive, turning off automatically
 
(...) ... (...) That would be my guess, all of the recent IR stuff seems to have these (e.g., the PF receiver, even the (URL) NXT motors> and PF motors). Further, it sounds like the fuse has gone bad if he can't run it and the motor runs fine on (...) (13 years ago, 3-Nov-11, to lugnet.trains, FTX)

Message is in Reply To:
  Problem with 7898 locomotive, turning off automatically
 
I was exhibiting lego trains at a recent model train exhibition. A member of public came up to me with his 7898 locomotive. The problem is that the locomotive keeps on turning off automatically when it gets under load, such as going round corners, (...) (13 years ago, 29-Oct-11, to lugnet.trains)

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