In order to have room for the speaker, height needs to be
removed from the weight. The loco in [3] had the weight
removed and milled down until the motor almost protruded
above the weight. In my column “17 DCC Tips” from June 2013
I showed how to use a belt sander for
this task. So no special tools are necessary for this installation.
Figure 4 shows a similar shell where there are more grille
openings. You can see the speaker held in with clear caulk.
Check out the small plastic nubs protruding near the grille.
Similar ones above the speaker are what you need the cone
to clear. To finish this installation, I put a piece of black plastic
over the open grille to seal it. I held it in place with a bead of
caulk. The rear LED will rest on top of the weight and needs to
be adjusted so it shines on the flat portion of the lens assem-
bly in the shell.
4. Proto 2000 loco with several open grilles.
4