NSWGR 36 class by Austrains
- Mike Walters
- May 9
- 2 min read
Items used: ESU 58823 LokSound 5 DCC Micro decoder. (Alternatively a 58420 Sound 5 DCC decoder)
ESU 54671 Powerpack Mini DCCSound premium speaker for Austrains 36 class
Heatshrink (1.5 mm)

The tender is disassembled via three screws:
The front tender bogie pivot,
Two screws located under the tender floor towards the back of the tender.
The tender top is then removed from the chassis.
In this example, as the decoder will be hardwired, the factory wiring loomed is removed from the tender.
The wired speaker is placed in the coal bunker area, with two wires passing through the floor which are then wired to the two brown speaker wires from the decoder. A small 1mm hole is drilled in the coal bunker floor to enable the two wires to pass through.
A small amount of glue fixes the speaker in place. The faux coal load molding is then placed over the speaker.

The two brown wires from the decoder are soldered to the speaker wires and joints protected with heatshrink.
The ESU Powerpack mini is wired to the decoder, as shown below and both fixed in place with double sides tape.
Decoder wires are then soldered to the small circuit board:
Top to bottom as pictured:
Back wire (left rail pickup)
Grey wire (motor -ve)
White wire (headlight -ve)
Blue wire (headlight +ve)
Orange wire (motor +ve)
Red wire (right rail pickup)
Note: From the factory, the engine's headlight (LED) is not protected by a resistor, so it is advised (to prevent damage to the LED) to fit a 470 - 1000 ohm resistor either in the tender or in the engine. In this example one was fitted in the engine.
The tender is then reassembled and the model tested.

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