Franklin 2007 Manuel D’Utilisation

1.  Open master breaker and disconnect all leads from control 
      box or pressure switch (QD type control, remove lid) to 
      avoid electric shock hazard and damage to the meter.

 2.  Use a megohmmeter or set the scale lever to R X 100K
      on an Ohmmeter. Zero the meter.

 3.  Connect one meter lead to any one of the motor leads
      and the other lead to the metal drop pipe. If the drop pipe is
      plastic, connect the meter lead to ground.

 1.  If the ohms value is normal (table 45), the motor is 
      not grounded and the cable insulation is not damaged.

 2.  If the ohms value is below normal, either the windings
      are grounded or the cable insulation is damaged.
      Check the cable at the well seal as the insulation is 
      sometimes damaged by being pinched.

 1.  Open master breaker and disconnect all leads from control 
      box or pressure switch (QD type control, remove lid) to 
      avoid electric shock hazard and damage to the meter.

 2.  Set the scale lever to R X 1 for values under 10 ohms.
      For values over 10 ohms, set the scale lever to R X 10.
      “Zero” the Ohmmeter.

 3.  On 3-wire motors measure the resistance of yellow to black
      (Main winding) and yellow to red (Start winding).

      On 2-wire motors: measure the resistance from line-to-line.

      Three-phase motors: measure the resistance line-to-line
      for all three combinations.

 1.  If all ohms values are normal (tables 13, 22, 24 & 26), the 
      motor windings are neither shorted nor open, and the
      cable colors are correct

 2.  If any one value is less than normal, the motor
      is shorted.

 3.  If any one ohm value is greater than normal, the 
      winding or the cable is open, or there is a poor cable 
      joint or connection.

 4.  If some ohms values are greater than normal and some
      less on single-phase motors, the leads are mixed. See
      page 46 to verify cable colors.

44