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The K 27 looks like being a pretty straightforward battery R/C install using RCS.
The TRACK - BATTERY switch on the K 27 Super Socket is not wired the same as the AristoCraft socket. Unlike the AristoCraft switch, the Bachmann TRACK - BATTERY switch completely isolates the on board BATTERY terminals from the track in TRACK position. This is an effective battery supply ON - OFF switch.
We used an RCS # ILC-2.
These provide enough parts for four locos. The cost is about US$ 4 per loco plus the trail car and battery R/C. Many operators will already have their trail cars set up so installation will be a snip!!!
Anyway, simply feed an RCS ILC-2 connector lead through the rear of the tender and connect it to the BATTERY terminals on the socket pcb. Set the switch to BATTERY and you are all set to go. If the loco runs backwards simply reverse the two wires at the BATTERY terminal on the socket pcb. Or you can simply flip the NMRA - LARGE SCALE switch.
We found 14.4 volts gives an ideal top speed. If you want to go faster use more volts.

The TRACK - BATTERY switch on the K 27 Super Socket is not wired the same as the AristoCraft socket. Unlike the AristoCraft switch, the Bachmann TRACK - BATTERY switch completely isolates the on board BATTERY terminals from the track in TRACK position. This is an effective battery supply ON - OFF switch.
We used an RCS # ILC-2.

These provide enough parts for four locos. The cost is about US$ 4 per loco plus the trail car and battery R/C. Many operators will already have their trail cars set up so installation will be a snip!!!
Anyway, simply feed an RCS ILC-2 connector lead through the rear of the tender and connect it to the BATTERY terminals on the socket pcb. Set the switch to BATTERY and you are all set to go. If the loco runs backwards simply reverse the two wires at the BATTERY terminal on the socket pcb. Or you can simply flip the NMRA - LARGE SCALE switch.
We found 14.4 volts gives an ideal top speed. If you want to go faster use more volts.