D1146/D1146TI/DE08TIS MAINTENANCE MANUAL 2.1.5. Fuel filter z Drain water in cartridge with loosening the cock under filter manually (6) from time to time. G1019 2.1.6. Air cleaner. z In case that elements are deformed, damaged or if the air cleaner has a crack, replace it. z By the definite interval, the elements must be cleaned and replaced. 2.1.7. Intercooler The intercooler is air to air type and has a large cooling fan capacity. The intercooler life and performance depends on the intake air condition greatly. Fouled air pollutes and clogs the air fins of intercooler. As a result of this, the engine output is decreased and engine malfunction is occurred.
So you always check whether the intake air systems like air filter element are worn or polluted. 16 Printed in Jan. 2001 PS-MMA0415-E1A