Lionel Trains 71-8340-250 - Manual (Page 10)

RailSounds sound system operations
Installing the battery
W hile the RailSounds sound system is powered through the track, we recommend that you
install a nine-volt alkaline battery in each locomotive to prevent the sound system from
shutting down during track power interruptions (for example, at a switch or a dirty section of
track). Follow these steps and refer to Figure 3 as you install the battery.
If the RailSounds sound system turns off during interruptions in track power, you
may need to replace the battery.
1. Carefully lift up and remove the roof-top hatch as illustrated in Figure 3.
2. Remove the protective cover from the battery harness.
3. Snap the battery harness onto the nine-volt alkaline battery’s terminals.
4. Slide the battery into the battery clip.
5. Replace the hatch.
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Note!
Figure 3. Battery installation (powered A-unit locomotive only)
Volume control knob
Battery
holder
Battery
harness