Mansfield AD60 Class Garrett – Two TCS M1’s

Josh Beveridge 30/8/2005

The AD60 is misleading. It looks like there would be lots of room inside the front tank and rear bunker. However the space is used for lead weights with just enough room for the motor/gearboxes in each of them!

Once again a small decoder goes along way, enter the M1.

Step One: Unscrew the tank/bunker from the chassis of both drive units. Unsolder the wires off the motor terminals, but keep them grouped as you unsolder them.

Step Two: The rear unit (Coal Bunker end). The decoder will sit on top of the motor. Simply solder the Orange and Grey decoder wires to the motor terminals. Then solder the Red and Black decoder wires to the wires that were unsoldered from the motor terminals at the start. Make sure to insulate all soldered joints with heatsink tubing. Test fit the body of the rear unit to make sure it goes on easily without squashing the decoder or it’s wiring.. Program the rear unit and test run.

Step Three: The front unit (Water tank). This end is different, when finished the decoder will be wedged between the weight and the inner surface of the tank roof, towards the back of the water tank. Allow enough length in the wiring to let the decoder reach to the back of the tank. Solder the decoder wires to the motor as described in Step Two. Program the front unit and check that it runs the same way as the rear unit! If it doesn’t, reverse the red and black wires on one of them.

When programming the decoders individually, give both of them the same address (obviously!). No two motors will run the same, so additionally you may need to ‘fine tune’ the units so they run at the same pace thru all speed levels.