| 1. An ohmmeter check up conductivity between socket contacts of the motor. In the OFF position, the conductivity should be between terminals 1 and 4, in the position of LOW - between terminals 1 and 3 and in position HIGH - between terminals 2 and 3. | 2. If conductivity is absent, replace the motor. | | 3. Check the engine speed when submitting additional wires to the battery voltage to the motor connector pins. Connect the battery negative terminal to pin 3 of the connector. When you connect the positive terminal of the battery to pin 1 of the engine to run at low speed, and when connected to terminal 2 of the motor must rotate at a high speed. |
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