Chapter IV Disassembly & Repair
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Check of bearing
Clean and dry the bearing.
Rotate the bearing with hands and check the backlash. Replace
it in case of abnormal noise or movement.
Oil-level sensor
Measure the conductivity of senor with ohmmeter.
When the engine oil in tank is insufficient or empty, the
black wire of sensor is conductive with the earth wire;
otherwise the black wire of sensor is not conductive with
the ground, which means the sensor is under normal status.