CORE AS-OCLR 0R3499 - Caterpillar

Note: Prior to starting the engine, ensure that the urea dosing system power is turned on.Perform the required daily maintenance and other periodic maintenance before starting the engine. This maintenance can prevent major repairs at a later date. See this Operation and Maintenance Manual, "Maintenance Interval Schedule" (Maintenance Section).Walk-Around Inspection
For any type of leak (coolant, lube, or fuel) clean up the fluid. If leaking is observed, find the source and correct the leak. If leaking is suspected, check the fluid levels more often than recommended until the leak is found or fixed, or until the suspicion of a leak is proved to be unwarranted.
To obtain maximum service life for your engine, make a thorough inspection before starting the engine. Make a walk-around inspection of the installation. Look for items such as oil or coolant leaks, loose bolts, and trash buildup. Remove any trash. Make repairs, if necessary.
The guards must be in the proper place. Repair damaged guards or replace missing guards.
Ensure that the areas around the rotating parts are clear.Air Inlet System
Ensure the following conditions:
The air inlet piping and the air filters are in place.
All clamps and connections are secure.Cooling System
Inspect the cooling system for leaks or loose connections. Inspect the condition of all the pipes for the cooling system. Ensure that the connections are properly clamped.
Inspect the water pumps for evidence of leaks.
Check the coolant level. Add coolant, if necessary. For information on the proper coolant to use, see this Operation and Maintenance Manual, "Refill Capacities and Recommendations" (Maintenance Section).Engine Protective System
Perform a lamp test for the alarm system.Reset all of the devices that may prevent the engine from starting:
Air shutoff
Control panel
Overspeed switchPumping air into the pneumatic linkage of the fuel rack shutoff may be necessary.Fuel System
All valves in the fuel return line must be open before and during engine operation to help prevent high fuel pressure. High fuel pressure may cause filter housing failure or other damage.
Open all fuel supply lines and fuel return lines.
Inspect the fuel lines for loose fittings and leaks. Ensure that the fuel lines are properly clamped.
Check the fuel supply. Keep fuel tanks nearly full. Partially filled tanks will collect moisture. Do not overfill the fuel tank. When fuel is warm, fuel expands and the fuel may overflow.
Drain water and sediment from the fuel tank.
Drain water and sediment from the primary filter/water separators.Lubrication System
Illustration 1 g00274899
Oil level gauge
(1) "ADD" mark
(2) (FULL) "mark"
Check the engine crankcase oil level. Maintain the oil level between the "ADD" and "FULL " marks on the "ENGINE STOPPED WITH OIL COLD" side of the oil level gauge. For information on the proper oil to use, see the Operation and Maintenance Manual, "Refill Capacities and Recommendations" (Maintenance Section).
Check for leaks at the following components: crankshaft seals, crankcase, oil filters, oil gallery plugs, sensors and valve covers.
Inspect the tubes, tee pieces, and clamps on the crankcase breathers.Starting System
Ensure that the engine control system allows the engine to be started from the local position.
Ensure that the engine will be started at low