ENGINE MAINTENANCE - Maintenance Requirements Cleaning the Engine Engine cleaning precautions. Maintenance Requirements WARNING Never idle your vehicle for prolonged periods of time if you sense that ex- haust fumes are entering the cab. In- vestigate the cause of the fumes and correct it as soon as possible. If the vehicle must be driven under these conditions, drive only with the windows open. Failure to repair the source of the exhaust fumes may result in death, personal injury, equipment or property damage. When cleaning the engine, follow the instructions from the vehicle manufacturer operator's manual and observe all environmental protection regulations.
2 Engine Maintenance Introduction and important maintenance requirements. CAUTION PACCAR recommends that the engine be maintained according to the maintenance schedule in this section. If the engine is operating in ambient temperatures below 0°F (-18°C) or above 100°F (38°C), perform maintenance at shorter intervals. Shorter maintenance intervals are also required if the engine is operated in a dusty environment or if frequent stops are made. Some of these maintenance procedures require special tools or must be completed by qualified personnel. Contact your local PACCAR authorized repair location for detailed information.
If your engine is equipped with a component or accessory not manufactured by PACCAR Inc, refer to the component manufacturer's maintenance recommendations. Do not direct water onto electrical components, plug connectors, seals or flexible hoses on the engine. Water may enter the part causing electrical damage or contaminating the engine oil. To prevent damage to engine com- ponents, keep the water moving at all times while cleaning the engine. Fail- ure to comply may result in equipment damage. WARNING Exhaust fumes from the engine con- tain carbon monoxide, a colorless and odorless gas. Do not breathe the en- gine exhaust gas.
A poorly maintained, damaged or corroded exhaust system can allow carbon monoxide to enter the cab. Entry of carbon monoxide into the cab is also possible from other ve- hicles nearby. Failure to properly main- tain your vehicle could cause carbon monoxide to enter the cab, resulting in death or personal injury. Daily or Refueling Maintenance Checks Engine Fuel Filter / Water Separator Daily and refueling maintenance check for the engine fuel filter/water separator. Automatic water drain, no maintenance required. Y53-1166-1G1 (08/2018) 29