Motor
NOTE: Motors used on wood working tools are particularly susceptible to the accumulation of sawdust and wood chips and shouId be blown out or "Vacuumed" frequently to prevent interference with normal motor ventilation
Trouble | Probable Cause |
FExcessive Noise | 1 Motor |
Remedy
1 Have motor checked by qualified service technician
Repair service is available at your nearest Sears store.
Motor fails to develop full power NOTE: Low Voltage:
(Power output of motor decreases rapidly with decrease in voltage at motor terminals For example, a reduction of
110% in voltage causes '.areduction of 19% in
maximum power output of which the motor is capable, and a reduc- tion of 20% in voltage causes a reduction of 36% in maximum power output.)
t Circuit overloaded with lights, appliances and other motors
2Undersize wires or circuit too long
3.General overloading of power company facilities r(in some sections of the country, demand for electrical power may exceed the capacity of existing generating and distribu-
tion systems )
4Incorrect fuses of circuit break- era in power line
1 Do not use other appliances or motors on same cir- cuit when using the saw
2. Increase wire sizes, or reduce length of wiring. See
"Motor Specifications and electrical Requirements" section
3 Request a voitage check from the power company
4. Install correct fuses or circuit breakers
Motor | starts slowly or | 1. | Low voltage |
| 1. | Request voltage check from the power company | ||
fails to come up to full | 2 | Windings | burned | out or open | 2 | Have motor repaired or replaced. | ||
speed |
| 3 | Starting | relay not operating | 3 | Have relay reptaced | ||
Motor | overheats | 1 | Motor overloaded |
| 1 | Feed work slower | into blade | |
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| 2 | Improper | cooling | (Air circulation | 2 | Clean out sawdust | to provide normal air circulation |
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| restricted through motor due to |
| through motor See "Maintenance" and "Lubrication" | |||
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| sawdust, | accumulating inside |
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| of saw ) |
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Relay will not operate
Motor stalls (resulting in blown fuses or tripped circuit breakers)
Frequent opening of fuses or circuit breakers
1. | Burned contacts (due to |
| 1, Have relay replaced and request | a voltage check | |||||
| extended |
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| from the power company |
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| caused by low line voltage, etc.,) |
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2. | Saw not in upright position | 2. | Place saw in upright position. |
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3. | Loose | or broken connectors. | 3 | Have wiring checked and repaired. | |||||
1. | Starting | relay not operating, | 1 | Have relay replaced |
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2 | Voltage | too low to permit | motor | 2. | Request voltage check from the power company | ||||
| to reach | operating speed |
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3 | Fuses | or circuit | breakers | do not | i3 | Install proper size | fuses or circuit | breakers. | |
| have | sufficient | capacity. |
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1. | Motol | overloaded |
| j l | Feed work slower | into blade |
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2Fuses or circuit breakers do not 2 Install proper size fuses or circuit breakers have sufficient capacity
3. Starting relay not operating | _3 Have relay replaced. |
(motor does not reach speed.) |
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