Ford F series Owner's Manual page 257

vibration, or other indication that your vehicle
may need service. If you do notice something
unusual, see that your vehicle is serviced
promptly.
Precautions When Servicing Your
Vehicle
Be especially careful when inspecting or
servicing your vehicle. Here are some general
precautions for your safety:
If you must work with the engine running,
avoid wearing loose clothing or jewelry that
could get caught in moving parts. Take
appropriate precautions with long hair.
Do not work on a vehicle in an enclosed
space with the engine running, unless you are
sure you have enough ventilation.
Never get under a vehicle while it is
supported only by a jack. If you must work
under a vehicle, use safety stands.
Keep all lit cigarettes and other smoking
materials away from the battery and all
fuel-related parts.
If you disconnect the battery, the engine must
"relearn" its idle conditions before your vehicle
will drive properly. To find out how the engine
does this, see Battery in this chapter.
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