|REMOVING MOTORS FROM AN SD-45|
|By Pete Eggink|
|In the picture above, one of Pete's SD-45's pulls a long coal train across a trestle on the Mason Dixon Modular Layout on 12/18/05. This locomotive has only 3 motors instead of 4 but still has plenty of pulling power. Why remove a motor from a perfectly good engine? To conserve battery charge when running a battery-powered engine that already has plenty of power. Current draw is reduced from 2.2 to 1.8 amps on level track.
Here are instructions on how to pull a motor, a process that takes about 45 minutes.
|First remove the motor block from the locomotive using the outermost 4 screws between the wheels. Then remove the cover using 8 screws, on the ends and between the motors. The truck does not pivot at the center, so I recommend you pull the motor that is furthest from the pivot for better pulling power.|
|Now invert the block and pull up the motor lead clips. Then flip the block over and remove the motor and outer wheelset.|
|Next the worm gear has to be removed so the axle will be free rolling. Remove the axle screws and lockwashers. Now place the assembly on a vise so that both sides of the wheel are supported but the gearbox is loose. Place the tip of a needlenose plier on the center and give the pliers a tap to remove the wheel from the tapered axle. Repeat for the other wheel.|
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