Caterpillar Excavator 345D

Cooling System Coolant Level - Check WARNING:

Personal injury can result from hot coolant, steam and alkali.

At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.

Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.

Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.

Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.

1. Open the access doors on the left side of the machine

2. Maintain the coolant level between the marks on the coolant reservoir.

Note: Refer to Operation and Maintenance Manual, “General Hazard Information” for information that pertains to containing fluid spillage.

Note: This engine is equipped with a belt tightener that automatically adjusts the belt to the correct tension.

1. Unlatch the engine hood and raise the engine hood.

2. Inspect the belt for wear and for cracking.

3. If the belt requires replacement, perform Step 3a through Step 3c.

a. Turn the belt tensioner in order to release the tension from the belt.

Air Conditioner/Cab Heater Filter (Recirculation) - Inspect/Replace

An air recirculation filter element plugged with dust will result in decreased performance and service life to the air conditioner or cab heater.

To prevent decreased performance, clean the filter element, as required.

The air conditioner filter is located on the lower left side of the cab behind the seat.

1. Slide the operator seat forward.

2. Slide the filter element upward.

3. Tap the air filter against the palm of one’s hand in order to remove the dirt. Do not use compressed air to clean the filter.

4. After you clean the filter element, inspect the filter element. If the filter element is damaged or badly contaminated, use a new filter element. Make sure that the filter element is dry.

Engine Valve Lash and Fuel Injector Timing - Check

Engine Valve Rotators - Inspect

Engine started and run at low idle?

Each valve rotator turned slightly whenever the cylinder valve closes?

Final drive positioned so that oil drain plug is at the bottom?

Drain plug and level plug removed and oil drained into a suitable container?

Hydraulic System Oil (If Equipped with Fine Filtration Filter) - Change

A 5000 hour maintenance interval for hydraulic oil (change) is available. The extended interval requires S·O·S monitoring of the hydraulic oil. The interval for S·O·S monitoring is every 500 hours. The maintenance interval for the hydraulic oil filter is not changed. If S·O·S monitoring is not performed, the 2000 hour maintenance interval must be used.

Machines with hammers are not included in the 5000 hour maintenance interval. Machines with hammers must use the intervals that are listed in the Maintenance Interval Schedule. Machines that are used in severe conditions are not included in the 5000 hour maintenance interval. Machines that are used in severe conditions must use the interval in the Maintenance Interval Schedule.

Refer to Operation and Maintenance Manual, “Hydraulic System Oil - Change” for the procedure to change the hydraulic oil.

Enter the current machine hours

Was the S·O·S monitoring performed every 500 hours?

Is the machine equipped with a hammer?