Engine Warm-Up

Avoid full throttle operation when the engine is cold. When starting a cold engine, bring the engine up to operating speed slowly to allow the oil pressure to stabilize as the engine warms up.

If temperatures are below 0°C [32°F], operate the engine at moderate speeds for 5 minutes before full loads are applied.

HAND THROTTLE
To operate the engine at a moderate speed, the manual transmission trucks have been equipped with a hand throttle. With the engine running, depress the throttle foot pedal to approximately 1/4 throttle. Turn the hand throttle handle counter clockwise to unlock.

Slowly pull the handle out until you feel resistance. Hold the handle while lifting your foot from the throttle pedal. If the engine speed stays constant, turn the handle clockwise to lock the throttle at this warm-up speed.

CAUTION: Do not operate the truck with the hand throttle activated.