ENGINE OPERATION - Operating Instructions Engine Operating Range 1 Information on operating the engine at proper rpm. que rpm for more than 30 seconds. Failure to comply may result in equip- ment or property damage. sion operating temperatures which could cause increased rates of wear. An idle shutdown feature (available on PACCAR engines) can be program- med to shut the engine down after a period of low idle operation with no driver activity. A flashing warning lamp will inform the driver of an impending shutdown. Failure to comply may re- sult in equipment or property damage.
Proper Engine Operating Range PACCAR engines are designed to operate at full throttle under momentary conditions down to peak torque engine speed. This is consistent with recommended operating practices. CAUTION CAUTION Operating the engine beyond the max- imum engine speed can cause severe engine damage. Use proper operating techniques for the vehicle to prevent engine overspeed. See Engine Speci- fications for maximum engine speed. Failure to comply may result in equip- ment or property damage.
If the truck is equipped with power take off (PTO) equipment, the engine shutdown system can be deactivated when the PTO is operational; however, engine idle periods should not exceed five minutes whenever possible. Fail- ure to comply may result in equipment or property damage. 1. Full Throttle rpm 2. Peak Torque CAUTION Operating the engine at full throttle be- low peak torque will shorten engine life to overhaul, can cause serious engine damage, and is considered engine abuse.
DO NOT operate the engine at full throttle operation below peak tor- Extended Idling Long periods of idle-time (3 hours or more) may accelerate the build up of soot in the diesel particulate filter (DPF), especially in cold weather. The system will illuminate the DPF warning light on the instrument cluster and a message on the Driver Information Display to indicate that the DPF requires CAUTION Prolonged periods of idling can result in lower than optimal engine/transmis- Y53-1183-1E1 (04/16/18) 25