Kohler RD 441

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Workshop Manual KD 441_cod. 1.5302.865_2
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Electrical system
Testing voltage regulator for proper operation
Check that connections correspond to the schematic.
Disconnect the terminal from the battery positive pole.
Connect a d.c. voltmeter between the battery poles.
Fit an ammeter between the positive pole and the B+ on voltage regu-
lator.
Start and stop the engine a several times until battery voltage drops
below 13V.
When battery voltage reaches 14.5V the ammeter current should sud-
denly drop down to almost zero.
Replace regulator if recharge current is zero with voltage below 12.5V.