Motor
NOTE: Motors used on wood working tools are particularly susceptible to the accumulation 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 service techni- |
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| cian. Repair service is available at your nearest |
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| Authorized Service Center. |
| 2. | Pulley set screw is loose. | 2. | Tighten set screw. |
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Motor fails to develop full | 1. | Circuit overloaded with | 1. | Do not use other appliances or motors on same cir- |
power. NOTE: Low volt- |
| lights, appliances and other |
| cuit when using the jointer. |
age (Power output of |
| motors. |
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motor decreases rapidly | 2. | Undersize wires or circuit | 2. Increase wire sizes, or reduce length of wiring. See | |
with decreases in voltage |
| too long. |
| “Motor Specifications and Electrical Requirements” |
at motor terminals. For |
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| section. |
example, a reduction of | 3. | General overloading of | 3. | Request a voltage check from the power company. |
10% in voltage causes a |
| power company facilities. |
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reduction of 19% in maxi- |
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mum power output of |
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which the motor is capa- |
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ble, and a reduction of |
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20% in voltage causes a |
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reduction of 36% in maxi- |
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mum power output.) |
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Motor starts slowly or fails | 1. | Windings burned out or | 1. | Have motor repaired or replaced |
to come to full speed |
| open. |
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| 2. | Drive belt tension too high. | 2. | Adjust belt tension |
| 3. | Defective start capacitor | 3. | Have start capacitor replaced |
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Motor overheats | 1. | Motor overloaded | 1. | Feed work slower into blade. |
| 2. Improper cooling. (Air circu- | 2. | Clean out sawdust to provide normal air circulation | |
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| lation restricted through |
| through motor. See “Maintenance and Lubrication” |
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| motor due to sawdust |
| section. |
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| accumulating inside of |
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| motor.) |
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Motor stalls (resulting in | 1. | Voltage too low to permit | 1. | Request voltage check from the power company |
blown fuses or tripped cir- |
| motor to reach operating |
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cuit breakers.) |
| speed. |
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| 2. Fuses or circuit breakers do | 2. | Install proper size fuses or circuit breakers. See | |
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| not have sufficient capacity. |
| “Electrical Connection” section |
| 3. | Circuit overloaded with |
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| lights, appliances and other | 3. | Do not use other appliances or motors on same cir- |
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| motors. |
| cuit when using the jointer. |
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Frequent opening of | 1. | Motor overloaded | 1. | Feed work slower |
fuses or circuit breakers | 2. Fuses or circuit breakers do | 2. | Install proper size fuses or circuit breakers. See | |
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| not have sufficient capacity. |
| “Electrical Connection” section |
| 3. | Circuit overloaded with |
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| lights, appliances and other | 3. | Do not use other appliances or motors on same cir- |
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| motors. |
| cuit when using the jointer. |
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