Motor
NOTE: Motors used on wood working tools are particularly susceptible to the accumu- lation of sawdust and wood chips and should be blown out or “Vacuumed” frequently to prevent interference with normal motor ventilation.
| Trouble | 
 | Probable Cause | 
 | Remedy | 
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| Excessive Noise | 1. | Motor | 1. | Have motor checked by qualified | 
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 | service technician. Repair ser- | 
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 | vice is available at your nearest | 
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 | Authorized Service Center. | 
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| Motor fails to | 1. | Circuit overloaded with lights, | 1. | Do not use other appliances or | 
| develop full | 
 | appliances and other motors. | 
 | motors on same circuit when | 
| power. NOTE: | 2. | Wiring circuit (extension cord) | 
 | using the saw. | 
| Low Voltage: | 
 | too long or undersize. | 2. | Increase wire sizes, or reduce | 
| (Power output of | 
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 | length of circuit. See “Motor | 
| motor decreases | 
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 | Specifications and electrical | 
| rapidly with | 3. | General overloading of power | 
 | Requirements” section. | 
| decrease in volt- | 
 | company facilities. (In some | 3. | Request a voltage check from | 
| age at motor ter- | 
 | sections of the country, | 
 | the power company. | 
| minals. | 
 | demand for electrical power | 
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 | may exceed the capacity of | 
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 | existing generating and distri- | 
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 | bution systems.) | 
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 | 4. | Incorrect fuses or circuit | 
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 | breakers in power line. | 4. | Install correct fuses or circuit | 
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 | breakers. | 
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| Motor starts | 1. | Low voltage. | 1. | Request voltage check from the | 
| slowly or fails to | 
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 | power company. | 
| come up to full | 2. | Windings burned out or open. | 2. | Have motor repaired or replaced. | 
| speed | 
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| Motor overheats | 1. | Motor overloaded | 1. | Feed work slower into blade. | 
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 | 2. | Improper cooling. (Air circula- | 2. | Clean out sawdust to provide | 
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 | tion restricted through motor | 
 | normal air circulation through | 
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 | due to sawdust, accumulating | 
 | motor. See “Maintenance” and | 
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 | inside of saw.) | 
 | “Lubrication” section. | 
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| Motor stalls | 1. | Voltage too low to permit | 1. | Request voltage check from the | 
| (resulting in | 
 | motor to reach operating | 
 | power company. | 
| blown fuses or | 
 | speed. | 
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| tripped circuit | 2. | Fuses or circuit breakers do | 2. | Install proper size fuses or circuit | 
| breakers) | 
 | not have sufficient capacity. | 
 | breakers. | 
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| Frequent open- | 1. | Motor overloaded | 1. | Feed work slower into blade. | 
| ing of fuses or | 2. | Fuses or circuit breakers do | 2. | Install proper size fuses or circuit | 
| circuit breakers | 
 | not have sufficient capacity. | 
 | breakers. | 
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| Motor runs inter- | 1. Worn or damaged brushes | 1. | Replace brushes. See “Mainte- | |
| mittently, sparks | 
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 | nance” section. | 
| excessively or | 
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| fails to start | 
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