Doosan DX60R Shop Manual page 435

Testing of Dynamo
Use a circuit tester or multimeter to perform the following tests.
Testing Stator Coil Continuity
1. Disconnect the dynamo output wire connector.
2. Connect one meter lead to each of the stator wire
terminals and read the meter.
NOTE: The meter reading should indicate continuity. If
continuity is not indicated, the windings are open and
the stator must be replaced.
Testing Stator Coil Short-to-Ground
1. Disconnect the dynamo output wire connector.
2. Test continuity between each stator wire terminal and
engine ground.
NOTE: The meter reading should infinity. If the meter reading
indicates continuity, the windings are shorted to
ground and the stator must be replaced.
Testing Dynamo Regulated Output
1. Test and record the battery voltage with the engine not
running.
2. Start the engine and operate it at normal operating rpm.
3. Again, check the battery voltage with the engine running.
NOTE: The meter reading with the engine running must be
higher than with the engine not running.
• If results are not correct, test the stator for continuity
and shorts to the ground.
• Check the charging system wiring.
• If no problems are found in previous checks, replace
the IC regulator.
Engine SP001693
Page 255