MULTI-UNIT O Gauge - 12 Volt - AC-DC Traction Units
These Motor Units may be mounted in the trucks by any of the following methods:
two in one truck outside hung, two in one truck inside hung or one in a truck, preferably
inside hung. For long wheel base trucks or in cars used to haul trailers, we recommend
using two motors in one truck.
The wheel axle fits into the journal of any wheel base truck and a coupling wire
is provided to keep the units from rotating and to provide flexibility. See diagrams below.
Note: If car runs in the wrong direction, reverse brush connections.
The above diagram shows connections using pole reverse. When using reverse lever, connect in the usual way.
IMPORTANT
These are precision built units and require proper care and lubricationto insure long life and good performance. Lubricate frequently with a good grade of light oil. Lift one of the dust covers and drop the oil onto the gears over the shaft centers as as to allow it to flow down to the bearings. Also oil bearings on opposite side. Remember a drop in the right place is as good as a gallon.
The overall length of the wheel axles are to NMRA standards. They may be too long should you wish to have your truck frames closer to the wheels. To overcome this, simply file off each end of the axle to the desired length.
Thanks is due to Roger Somers for providing this information.
It is with his permission that it is reprinted here.
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