Household Repairs Note. Oil motors only in accordance with manufacturer's instructions. If you don't have these but if motor has obvious oiling points, put in a few drops of SAE No. 10 oil every two or three months. If motor has no oiling points, leave it alone.

Doesn't run. Check whether fuse has blown on house circuit. Plug a light into outlet into which motor is plugged to see if outlet is defective. Disconnect motor and examine cord and plug for breaks. Make necessary repairs (see electric cord). If these measures don't produce results, call in an expert.

Hums but doesn't start. Disconnect and examine mechanism driven by motor to make sure it turns freely. Apply oil at oiling points in mechanism if it is stiff. Check whether belt driven by motor (if any) is too tight (see belt, machine). If trouble continues, call a serviceman.

Turns too slowly. Disconnect and check mechanism driven by motor as above. Make sure that motor is securely bolted or screwed into motor housing.

Overheats. Turn off at once and get a serviceman.

Sparks excessively, runs unevenly. If you have oiled an AC-DC motor frequently, it may be that commutator and brush ends are covered with oil. Shut off current. Remove housing and clean commutator with a toothbrush dipped in carbon tetrachloride. Do not use gasoline or benzine. Unscrew metal or plastic caps on brush holders and slide out little springs and brushes. Clean these, as well as holders, with carbon tetrachloride. Then replace in exactly the same position that you found them.




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May 23, 2012