3208 INDUSTRIAL ENGINE Caterpillar

6N3161 12V (Motorola Number 8RD2018)

Polarity is negative ground or insulated.

Voltage setting range ... 13.2 to 14.4 V

(1) Remove cap to adjust voltage.

Turn the adjustment screw clockwise to increase voltage. There are five adjustment positions.

Position 1 ... 14.2 to 14.7 V

Position 2 ... 14.1 ± .2 V

Position 3^* ... 13.8 ± .2 V

Position 4 ... 13.5 ± .2 V

Position 5 ... 13.2 ± .2 V

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^*New regulators are adjusted at the factory to Position 3.

6N3160 24V (Motorola Number 8RD3019)

Polarity is negative ground or insulated.

Voltage setting range ... 26.8 to 29.2 V

(1) Remove cap to adjust voltage.

Turn the adjustment screw clockwise to increase voltage. There are five adjustment positions.

Position 1 ... 29.25 ± .35 V

Position 2 ... 28.6 ± .3 V

Position 3^* ... 28.0 ± .3 V

Position 4 ... 27.4 ± .3 V

Position 5 ... 26.8 ± .3 V

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^*New regulators are adjusted at the factory to Position 3.