LINE AS-FUEL INJECTION 1379880 - Caterpillar

CARE OF THE FUEL SUPPLY: Too much emphasis cannot be placed on the importance of using only clean diesel fuel. It is important to buy clean fuel and keep it clean. The best fuel can be rendered unsatisfactory by inadequate storage facilities or careless handling.Effort should be constantly expended to prevent contamination of the fuel. An important step is to reduce the number of times the fuel must be handled. When the fuel can be delivered by the distributor to storage tanks and then pumped from the storage tank to the diesel fuel tank, the handling is reduced to a minimum. ADJUSTMENT: Check new belts for adjustments after the first 500 miles (750 km) and every 10,000 miles (16 000 km) thereafter. To check belts - apply 25 lbs. (11,5 kg) force midway between pulleys. Correctly adjusted belts will deflect 1/2 inch (12,5 mm) 3/4 inch (19 mm) for the first check. Maintain later adjustments at 7/8 inch (23 mm). TO ADJUST: Loosen the lockbolts on the fan pulley adjusting bracket and adjust fan pulley with the adjusting bolt. After belt tension is correct, tighten lockbolts.Readjust alternator belt tension and tighten adjusting nuts. CARE OF THE DIESEL FUEL TANK: Fill the fuel tank at the end of the day, because the incoming fuel will drive out the moistureladen air and prevent condensation. DRAINING FUEL TANK SEDIMENT ACCUMULATION: Open the drain cock and drain off any sediment or water which may accumulate in the fuel tank before starting the engine. In temperatures below freezing, drain shortly after the truck has stopped to prevent water freezing in the bottom of the tank and other low points in the system. FUEL FILTERING SYSTEM: As either the primary fuel filter element or the final fuel filter element gradually become clogged with foreign material, lack of horsepower will be noticed and the position of the fuel gauge indicator will work back from the original position in the NORMAL, green or approximately 30 psi (205 kPa) range, to the OUT, red or approximately 23 psi (160 kPa) range.Every 10,000 miles (16 000 km) or when the indicator shows in the OUT (red) range, the metallic primary fuel filter element (if equipped) should be removed and washed. If the indicator still shows in the OUT (red) range, the final filter element should be replaced with a Caterpillar filter element.Other make fuel filters may not meet filtering or capacity requirements. See the topics, PRIMARY FUEL FILTER and FINAL FUEL FILTER. PRIMARY FUEL FILTER: To remove the filter element, stop the engine and shut off the diesel fuel tank valve. Loosen the nut on the filter cover and lower the filter case. Remove the element and wash in clean solvent or diesel fuel. Reinstall the element.
PRIMARY FUEL FILTER FINAL FUEL FILTERS: The filter elements collect and hold contaminants and cannot be washed or otherwise restored.To remove the used filters, proceed as follows:1. Stop the engine and close the diesel fuel line valve (if equipped).2. Unscrew and