MAINTENANCE - What is Preventative Maintenance? What is Preventative Maintenance? WARNING WARNING If the engine must be operating to in- spect, be alert and cautious around the engine at all times. Failure to com- ply may result in death, personal in- jury, equipment or property damage. Always support the vehicle with appro- priate safety stands if it is necessary to work underneath the vehicle. A jack is not adequate for this purpose. Failure to comply may result in death, person- al injury, equipment or property dam- age. Preventive maintenance begins with the daily checks. Routine vehicle checks can help avoid many large, expensive, and time consuming repairs.
The vehicle will operate better, be safer, and last longer. Neglect of recommended maintenance can void your vehicle’s warranty. Some maintenance operations demand skills and equipment you may not have. For such situations, please take your vehicle to a PACCAR Powertrain distributor. WARNING 5 If work has to be done with the engine running, always (1) set the parking brake, (2) block the wheels, and (3) ensure that the shift lever or selector is in Neutral. Failure to comply may re- sult in death, personal injury, equip- ment or property damage.
WARNING When working underneath the vehicle without appropriate safety stands but with the wheels on the ground (not supported), make sure that (1) the ve- hicle is on hard level ground, (2) the parking brake is applied, (3) all wheels are blocked (front and rear) and (4) re- move the ignition key so that the en- gine cannot be started. Failure to com- ply may result in death, personal in- jury, equipment or property damage. WARNING Before attempting any procedures in the engine compartment, stop the en- gine and let it cool down. Hot compo- nents can burn skin on contact. Failure to comply may result in death, person- al injury, equipment or property dam- age.
WARNING Exercise extreme caution to prevent neckties, jewelry, long hair or loose clothing from getting caught in the fan blades or another moving engine parts. Failure to comply may result in death, personal injury, equipment or property damage. 30 Y53-1331 (6/21)