CORE AS 4903767 - Caterpillar

Do not fill the fuel filter with fuel before installing it. Contaminated fuel will cause accelerated wear to the fuel system parts.Drain the water and sediment from the fuel tank at the start of a shift or after the fuel tank has been filled and allowed to stand for 5 to 10 minutes.Drain water and sediment from any fuel storage tank weekly, and before the tank is refilled. This will help prevent water or sediment from being pumped from the storage tank into the machine fuel tank.Use only fuel as recommended in the "Coolant, Fuel and Lubricant Specifications" section of this guide.Hydraulic System
Make-up oil added to the hydraulic tank must mix with the oil already in the system. Use only petroleum products unless the system is equipped for use with special products.Water or air can cause pump failure. If the hydraulic oil becomes cloudy, water or air is entering the system. Drain the fluid, retighten hydraulic suction line clamps, and purge and refill the system. Consult your Caterpillar dealer for purging instructions.
Air Intake System
Check the precleaner screen for accumulation of dust, dirt or debris. Remove if an accumulation is found. When the colored band in the indicator locks in the full red visible position, service the air cleaner.If the colored band in the indicator locks in the red visible position shortly after installing a cleaned primary element after engine start-up, install another clean element, or a new element.The primary element can be cleaned up to six times before replacement is necessary.When cleaned, the primary element should be thoroughly checked. Discard any element that has rips and tears in the filter material. Replace the primary element yearly, even though it has not been cleaned six times.If the colored band in the indicator locks in the full red visible position after installation of a new primary element after engine start-up, install a new secondary element.At the time the primary element is serviced for the third time, the secondary element must be replaced.
Do not try to reuse a secondary element by cleaning it. Always use a new element.
Electrical System
When boost starting the machine, follow the instructions in the operation section to properly start the machine.This machine has a 24 volt starting system. Use only equal voltage for boost starting. Use of a welder or higher voltage will damage the electrical system.
Engines installed without engine-to-frame ground straps can be damaged by electrical discharge.To prevent electrical discharge damage, check to make sure the machine's electrical system has an engine-to-frame ground strap. For machines which have the alternator connected to an engine component, the ground strap must connect that component to the frame.Some machines have starter-to-frame ground straps. But, many of these starters are not electrically grounded to the engine. They have electrical insulation systems. For this reason, the starter-to-frame ground strap may not be an acceptable ground.Scheduled Oil Sampling (S O S)
Use Scheduled Oil Sampling (S O S) to monitor the condition and maintenance requirements of your equipment. Each oil sample should