freightliner BUSINESS CLASS M2 Driver Manual page 152

Pretrip and Post-Trip Inspections and Maintenance
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10/11/2001
1. Steering Gear Mounting Bolt
2. Pitman Arm Pinch Bolt Nut
3. Drag Link Nut
Fig. 11.13, Steering Gear Fasteners
1.
Inspect all visible brake system components for
missing fasteners or signs of looseness, such as
rust tracks.
NOTICE
If the external breather tube or breather cap is
missing or incorrectly installed, road dirt and de-
bris can adversely affect the operation of the
brake chamber. Once inside of the chamber, dirt
and debris can cause the internal parts of the
chamber to deteriorate faster.
2.
Inspect the exterior surfaces of brake chambers
for damage. Make sure that breather holes are
open and free of debris.
NOTE: Do not route air brake lines on top of
anything likely to be stepped on.
3. Inspect air brake lines for dents, swelling, kinks,
twisting, abrasion, and damage, especially near
moving parts.
4.
Inspect flex air lines for deterioration or signs of
abrasion.
5.
Inspect for cracked, worn, or oil-contaminated
brake linings and brake drums (or rotors).
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6. Check the thickness of the brake linings. Re-
place brake linings on all brake assemblies on
the axle if any brake linings are worn to less than
approximately 1/4 inch (6.4 mm) at the thinnest
point.
Saddle Tank Area Inspections
WARNING
When draining the air reservoir, do not look into
the air jets or direct them toward anyone. Dirt or
sludge particles may be in the airstream and
could cause injury.
NOTICE
If the water drained from the air reservoirs is
cloudy or oily, it may indicate a problem with the
compressor. If oil is allowed to contaminate the
air dryer, it will not remove the water from the air
brake system, which could adversely affect brak-
ing.
1. Drain the brake system air reservoirs (reservoirs
with automatic drain valves only).
NOTE: Battery locations vary between vehicles.
2. Inspect the batteries.
WARNING
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to the State of California to cause cancer
and reproductive harm. To prevent possible per-
sonal injury, always wash your hands after han-
dling battery parts and related accessories.
2.1 Remove the battery box cover and inspect
all visible battery cables for loose wiring or
damage.
2.2 Check that the battery hold-down is se-
cure.
IMPORTANT: Aerodynamic components de-
crease drag force as a vehicle moves, thereby
improving fuel efficiency. If replacement of an
aerodynamic component is necessary, replace-
ment components must meet or exceed the
11.14