Caterpillar Diesel Marine Engine 3512

- Perform every 1000 hours or 133,500 liter (35,000 U.S. gallon) of Fuel Rated Up to 1300 rpm, 164,000 liter (43,200 U.S. gallon) of Fuel Rated 1301 to 1600 rpm, 194,000 liter (51,200 U.S. gallon) of Fuel Rated 1601 to 1800 rpm

- Change Auxiliary Final Fuel Filters

MAIN FINAL FUEL FILTERS NOT IN USE:

If the main final fuel filters have been used and there are no replacement filters, the auxiliary final fuel filters may be used for a maximum of 1000 service hours engine operation or until the fuel filter differential gauge registers 105 kPa (15 psi)

NOTE: The engine must be shut down to change the auxiliary final fuel filters when the main final fuel filters have been used and there are no main final fuel replacement filters. Use the following procedure

1. Leave the control valve in the AUXiliary RUN position. Open the fill valve for a minimum of five minutes. Close the fill valve and rotate the control valve to the MAIN RUN position

2. Attach one end of drain hose to drain valve. Put the other end of the hose in a container to catch the fuel. Open drain valve stem. Remove vent plug and drain the fuel filter housing

3. Remove cover from the end of the filter housing

Remove the two used fuel filter elements from inside the fuel filter housing

Perform every 1000 hours or 133,500 liter (35,000 U.S. gallon) of Fuel Rated Up to 1300 rpm, 164,000 liter (43,200 U.S. gallon) of Fuel Rated 1301 to 1600 rpm, 194,000 liter (51,200 U.S. gallon) of Fuel Rated 1601 to 1800 rpm

Loosen hose clamps on breathers and slide the fumes disposal tube from the breather assemblies

Loosen breather retaining clamp on each of the two breathers. Remove breather and the seal

Wash breather in clean, nonflammable solvent and allow to dry before installation

NOTE: Put clean engine oil or petroleum jelly on the rubber parts to make installation easier

Install new seals and breather in the same position and in reverse order of removal. Tighten bolt clamp

Tighten all clamps to 4.5 $ 0.6 Nom (40 $ 5 lb in)

Warning: Use caution when draining oil or changing filters. Hot oil or components can cause burns if they contact skin.

Drain the crankcase with the oil warm and the engine stopped to allow for the draining of waste particles that are suspended in the oil.

Oil drained with engine warm and stopped?

As the oil cools, suspended waste particles will settle on the bottom of the crankcase and will not be removed with the draining oil.

Oil drained before it cooled down?

Failure to follow this recommended procedure would result in these waste particles being recirculated through your engine lubrication system with the new oil.

Crankcase drain plug removed or hand operated sump pump used to drain the oil?

When using the drain stream to obtain the oil sample, do not sample from the first or final draining since the oil at the beginning or end of the drain stream is not mixed well enough to be representative of the oil in the crankcase.

Oil sample obtained from the middle of the drain stream?

Perform every 1000 hours or 133,500 liter (35,000 U.S. gallon) of Fuel Rated Up to 1300 rpm, 164,000 liter (43,200 U.S. gallon) of Fuel Rated 1301 to 1600 rpm, 194,000 liter (51,200 U.S. gallon) of Fuel Rated 1601 to 1800 rpm

Inspect/Check Engine Protective Devices

The engine protective shutoff controls inspected and checked for proper operation

Have the inspection and checks made by a qualified mechanic. Consult your authorized Caterpillar engine dealer, or refer to the Service Manual for your engine

The Hydramechanical Shutoff inspected and tested for proper operation and protection to the engine

Air inlet valve checked to make sure it closes during testing

Sign off on the engine protective devices inspection

- Perform every 1000 hours or 133,500 liter (35,000 U.S. gallon) of Fuel Rated Up to 1300 rpm, 164,000 liter (43,200 U.S. gallon) of Fuel Rated 1301 to 1600 rpm, 194,000 liter (51,200 U.S. gallon) of Fuel Rated 1601 to 1800 rpm

1. Close the fuel supply line valve

2. Attach one end of the drain hose to drain valve

Put the other end of the hose in a container to catch the fuel

3. Open drain valve. Remove vent plug and drain the fuel filter housing

4. Remove cover from service end of the filter housing

5. Remove the five used filter elements from inside the filter housing. Wipe all sediment from inside the filter housing