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N GMD-1 Product Support Page (2019 Release)


Important DC Advisory

Do NOT use MRC 1300-series DC controllers with any of Rapido's locomotives. The RailPower 1300 is notorious for voltage spikes and it WILL destroy your locomotive. There is no “if” about it. We will try to help you if we have the parts, but we are not responsible for locomotive damage due to voltage spikes in your power supply. As well, we will not repair any locomotive damaged by an MRC 1300-series controller (or any other "train set" DC controller) unless you have retired the controller. Otherwise the damage will soon reoccur. “Train set” DC controllers should not be used with any modern model locomotives.

General Problems and Inquiries

If your model arrives with damage or there is any other issue, the best thing to do is to call our support team. They take care of all of our warranty repairs and they are all swell guys. The toll-free number is 1-855-LRC-6917 (1-855-572-6917) (outside North America, +1 905-474-3314 or 905-474-3324).

Function Issues on Digitrax Systems

If you operate with a Digitrax DCC system and your DCC loco does not seem to be responding  as it should, please try the fix described below before contacting us. It may save you some time and aggravation!

Apparently, some Digitrax systems store the address of every single loco that they've ever used on them, and regardless of whether the loco was dispatched or not. Once this memory fills up, any new locos that attempt to be used by that system exhibit very unusual behavior including non-working functions and odd responses.

The solution to this is easy. All you need to do is clear the memory in your system. This is done by clearing slot #36, see the instructions below. Once you've done this, you'll likely find that your loco operates exactly as you expected it should.

General Instructions for Closing Command Station Option Switches (for specific instructions for your command station and throttle, see the instruction manual for your equipment):

    1. On the command station, set the MODE toggle switch to the OP (center) position.
    2. Using your throttle go into Switch Mode
    3. Enter the Option Switch number you wish to change ( in this case 36)
    4. Press the "c" key on the throttle.
    5. You will hear a beep.
    6. On the command station move the MODE toggle down to SLEEP then back up to RUN. 
    7. Using your throttle, turn Track Status back on.

For more information, see this page from Didigtrax's web site.

Shell Removal

Removing the shell of your GMD-1 is quite easy. There are no screws to undo, no hidden buttons to press, no secret lampholders to pull. Start at the long-hood end, and press in on the radiator screen on the end while pulling up. The locking tab at the end will come free, and the shell will start to come off. With a jewellers slot screwdriver, carefully wedge the shell upwards along the length of shell towards the short-hood end on both sides of the unit. As a last step, you'll have to pull the handrail pins out of the cab, but that's it! Your shell is free!