3304 AND 3306 MARINE ENGINES Caterpillar

Every 50 Service Hours or Weekly, Whichever Occurs First

Usage:

Zinc Rods

Check Rods - Replace if Deteriorated

1. Remove all the zinc plugs. They are painted red for easy identification.

2. Tap the zinc rods lightly with a hammer. If the rod has deteriorated, or flakes when tapped, install a new zinc rod.

Installing New Zinc Rods

1. Unscrew or drill the existing rod from the plug base.

2. Install a new rod in the plug base.

3. Install the plug.

NOTE: Do not use thread sealant on zinc plugs.

Caterpillar Information System:

3304 AND 3306 MARINE ENGINES Daily

3304 AND 3306 MARINE ENGINES When Required

3304 AND 3306 MARINE ENGINES Lubrication and Maintenance Chart

3304 AND 3306 MARINE ENGINES Recommended Lubricant Viscosities

3304 AND 3306 MARINE ENGINES Engine Specifications

3304 AND 3306 MARINE ENGINES Refill Capacities - (Approximate)

3304 AND 3306 MARINE ENGINES Coolant, Fuel and Lubricant Specifications

3304 AND 3306 MARINE ENGINES Coolant, Fuel and Lubricant Specifications

3304 AND 3306 MARINE ENGINES Maintenance Recommendations

3304 AND 3306 MARINE ENGINES Marine Transmission Storage

3304 AND 3306 MARINE ENGINES Engine Storage

3304 AND 3306 MARINE ENGINES Towing

3304 AND 3306 MARINE ENGINES First Oil Change Interval Only - New, Rebuilt or Remanufactured Engines

3304 AND 3306 MARINE ENGINES Oil and Filter Change Interval - Every 250 Service Hours or Monthly, Whichever Occurs First

3304 AND 3306 MARINE ENGINES Oil and Filter Change Interval - Every 500 Service Hours or Three Months, Whichever Occurs First

3304 AND 3306 MARINE ENGINES Initial 1000 Service Hours or Six Months, Whichever Occurs First

3304 AND 3306 MARINE ENGINES Every 1000 Service Hours or Six Months, Whichever Occurs First

3304 AND 3306 MARINE ENGINES Every 2000 Service Hours or One Year Whichever Occurs First

3304 AND 3306 MARINE ENGINES Troubleshooting

3304 AND 3306 MARINE ENGINES Important Reference Numbers

G342C NATURAL GAS ENGINE Foreword

G342C NATURAL GAS ENGINE General

G342C NATURAL GAS ENGINE Safety Precautions

G342C NATURAL GAS ENGINE Periods Of Limited Use