Electrical Equipment; Electric Starting With Motor And Alternator For Battery Re-Charging; Circuit Checking - Kohler KD 477-2 Workshop Manual

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Owner's manual (120 pages)

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Table of Contents

KD 477-2 Workshop Manual_cod. ED0053029370_1° ed_ rev. 00

Electric starting with motor and alternator for battery re-charging

Characteristics

Starter motor: anticlockwise rotation.

12V - 1.5 HP (1.1 kW)

Flywheel alternator:

For re-charging 12V/280W batteries giving 17A charge at 3000 RPM.

Regulator:

Electronic with controlled diodes and preset for battery re-charging pi-

lot light connection.

12V-24A

Optional external alternator with belt control:

For re-charging 12V/200W batteries giving 15.5A charge at 6000

RPM with 12V/26A voltage adjustor.

Battery:

12V; 80 to 90 Ah

To check starting system circuit see figures 47.

Circuit checking

1. Make sure the connections between regulator and alternator are

correct and in good condition.

2. Detach from the terminal on the starter motor, the red wire co-

ming from the alternator, and insert a direct current ammeter with

a 20 Amp range between said free terminal and the detached

wire.

3. Connect a direct current voltmeter with a minimum range of 15

Volts (fig. 44), to the battery terminals.

4. Insert starter key and start up a few times at no load or insert a

lamp load of 80 to 100 W at the ends of the battery to keep the

battery voltage under 13 Volts.

5. Run the engine up to the maximum of 3000 RPM. The charging

current reading on the ammeter should be about:

17A with 12V/280W alternator

For intermediate values see fig. 46.

6. Disconnect lamp load and keep engine running at A/m revs. for

some time.

The battery voltage will increase progressively until it reaches the

setting limit of the regulator which is about 14.5 V.

Simultaneously, the charging current will drop to about 2A. This

will occur very quickly if the battery is charged and slowly if it is

discharged.

7. If the charging current cuts out or is lower than the values given

above, replace governor. If the performance does not improve af-

ter this replacement, the trouble must be locked for in the alterna-

tor.