CARE
The armature and distributor shafts run on ball bearings, and these require the application of a few drops of oil twice a month. The interruptor is designed to operate without oil, and there is therefore little danger of oil working its way into the winding.
The carbon brushes must be wiped off with a little gasoline occasionally, and these are arranged in such a manner that they are easy of access.
The platinum contacts of the interruptor must be kept free from dirt and oil, and when, after long use, they become worn and uneven, they must be faced off by the use of a dead smooth file. The distance between them when separated by the action of the fiber rollers must not be more than one sixty-fourth of an inch, and this may be adjusted by means of the nuts. Accompanying each magneto is a small open end wrench for this purpose, to which is pivoted a leaf of steel that is to be used as a gauge for this distance.
This same measurement applies to the spark plugs, the points of which must provide a gap of not more than one sixty-fourth of an inch.