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. 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. Continuous operation with engine coolant temperature above or below the engine coolant temperature specifications listed in Engine Coolant Specifications on page 50 ” can damage the engine.
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. 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- Y53-1185-1E1 (04/16/18) 25