freightliner S2 Operator's Manual page 103

Pre- and Post-Trip Inspections and Maintenance
the parking brake is released or the ignition
switch is turned off. See
operating instructions for the ICU.
15.
Make sure that the horn, windshield wipers, and
windshield washers are operating properly.
These devices must be in good working order for
safe vehicle operation.
15.1 Make sure that the horn works. If a horn is
not working, have it repaired before trip
departure.
15.2 Check the wiper and washer control on
the multifunction turn signal switch. If the
wipers and/or washers are not working,
have them repaired before trip departure.
16. During cold weather, make sure the heater, de-
froster, and optional mirror heat controls are op-
erating properly. If so equipped, turn on the mir-
ror heat switch and make sure the system is
working.
17.
Check the operation of all the panel lights and
interior lights.
Turn on the headlights, dash lights, and four-way
flashers and leave them on. If any of the gauge
bulbs, the dome light bulbs, or the right- and left-
turn indicator bulbs are not working, replace
them. See Chapter 19
placement bulb identification.
18. Make sure all the exterior lights are working
properly.
Check that all the lights and reflectors are clean.
See Fig. 15.7.
18.1 Check that the brake lights, taillights,
headlights, parking lights, turn signals,
road lights (if so equipped), and front
clearance lights are working properly and
are clean.
18.2 Test the high and low beams of the head-
lights.
18.3 Replace light bulbs or sealed beam units
that are not working.
18.4 Be sure all reflectors and lenses are in
good condition and are clean. Replace
any broken reflectors or lenses.
19. Check tire inflation pressures using an accurate
tire pressure gauge.
Chapter 3 for detailed
of this manual for re-
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08/15/2006
1. Headlight High Beam
2. Headlight Low Beam
Fig. 15.7, Exterior Lights
Tires should be checked when cool. For inflation
pressures and maximum loads (per tire) see the
tire manufacturer's guidelines.
19.1 Be sure valve stem caps are on every tire
and that they are screwed on finger-tight.
19.2 Inflate the tires to the applicable pressures
if needed.
19.3 If a tire has been run flat or underinflated,
check for possible wheel or tire damage
before adding air.
Moisture inside a tire can result in body
ply separation or a sidewall rupture. Dur-
ing tire inflation, compressed air reservoirs
and lines must be kept dry. Use well-
maintained inline moisture traps and ser-
vice them regularly.
WARNING
Do not operate the vehicle with underinflated or
overinflated tires. Incorrect inflation can stress
the tires and make the tires and wheels suscep-
tible to damage, possibly leading to wheel or tire
failure and loss of vehicle control, resulting in
serious personal injury or death.
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3. Side-View Mirror
4. Marker Light
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15.6