D330, D333, D334, D336 INDUSTRIAL & MARINE ENGINE Caterpillar

When a generator is stored for any length of time moisture condenses in the windings. Minimize the condensation by providing a dry storage space.

To remove moisture caused by high humidity or dampness, dry the generator by one of the following methods:

1. Place the generator in an oven and bake at a temperature not above 185°F (85°C) for four hours.

2. Enclose the generator and heating lamps in canvas to raise the temperature. Leave an opening in the top for the moisture to escape.

3. Pass a low voltage current through the windings to raise the temperature of the windings to 185°F (85°C).

If there is a possibility the insulation resistance has deteriorated to a dangerously low level, contact your Caterpillar Dealer.

If a brush type generator (SRCR) is to be stored for a prolonged time, lift the brushes off the slip ring to prevent chemical action from damaging the slip ring.