PART 7: STARTING & OPERATING THE VEHICLE
PB1319 (CAT. NO. 5296 ) —87— 22-01691 (R02/02)
tons, cylinder liners, turbocharger, and bearings. This way you can
prevent serious engine damage that may result from uneven cooling.
Turbochargers
This cooling-down practice is especially important on a turbocharged
engine. The turbocharger contains bearings and seals that are sub-
jected to hot exhaust gases. While the engine is operating, heat is
carried away by circulating oil. If you stop the engine suddenly after a
hard run, the temperature of the turbocharger could rise as much as
100°F (55°C) above the temperature reached during operation. A
sudden rise in temperature like this could cause the bearings to seize
or the oil seals to loosen.
Refuel Before the Final Stop
Air space in your fuel tanks allows water to condense there. To pre-
vent this condensation while you are stopped, fill your tanks to 95% of
capacity.
Final Stop
To make sure your vehicle is ready to go after a long stop (such as
over night), please follow the suggestions below. Your vehicle will be
easier to get going when you are ready, and it will be safer for anyone
who might be around it.
Please remember, too, that in some states it is illegal to leave the
engine running and the vehicle unattended.
Final Stopping Procedures
1. Set the parking brake before leaving the driver’s seat.
To hold your vehicle while it is parked, don’t rely on
•Air Brakes
•Hand Control Valve for Trailer Brakes
•Engine Compression
WARNING! Using the trailer hand brake or air brakes to
hold a parked vehicle is dangerous. Because they work
with air pressure, these brakes could come loose. Your
vehicle could roll, causing a serious accident. Someone
could be hurt or killed. Always set the parking brakes.
Never rely on the trailer hand brake or truck air brakes
to hold a parked vehicle.
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