freightliner M2 Plus 2023 - Weekly Post-Trip Inspections and Maintenance

open flames, or intense heat. These could ignite
the fuel, possibly causing severe burns.
IMPORTANT: Use ultralow-sulfur diesel (ULSD)
with 15 ppm sulfur content or less. Failure to
use ULSD fuel may void the warranty on
emission components.
15.
Check the fuel level in the fuel tank(s). To keep
condensation to a minimum, fuel tanks should be
filled at the end of each day.
16.
Adjust the rearview and down view mirrors as
necessary.
17.
Test the service brakes.
17.1
With the engine running and air system
fully charged, set the parking brake.
17.2
Put the vehicle in the lowest gear and
gently attempt to move it forward. The
vehicle should not move.
If the vehicle moves, the parking brakes
are not operating correctly and must be
repaired before the vehicle is operated.
18.
Test the backup alarm.
18.1
Release the parking brake and put the
transmission in reverse.
18.2
Move the vehicle slightly backward to
ensure that the backup alarm is operating
correctly.
Weekly Post-Trip Inspections
and Maintenance
Engine Compartment Inspection
WARNING
Washer fluids may be flammable and poisonous.
Do not expose washer fluid to an open flame or
any burning material, such as a cigarette. Always
comply with the washer fluid manufacturer’s
recommended safety precautions.
1.
Check the windshield washer reservoir fluid level.
The reservoir is usually located near the right-
hand frame rail. See
Fig. 22.10.
2.
After resetting the air intake restriction indicator
during the daily pre-trip inspection, check the
indicator again with the engine off.
2.1
Check an indicator with graduations to see
if air restriction exceeds the value shown
in
Table 22.2.
Check a go/no-go indicator without
graduations to see if the colored bar
shows through the clear window.
Air Intake Maximum Restriction Values (inH
2
O)
Engine Make
GHG14, GHG17, and
GHG21 Engines
Cummins 25
Detroit 18
Table 22.2, Air Intake Maximum Restriction Values
(inH
2
O)
2.2
If air restriction exceeds the maximum
allowable value, operate the vehicle for
one more day, making sure not to run the
engine over rated rpm. Refer to the
engine operation manual for more
information on rated rpm for your engine.
2.3
If air restriction exceeds the maximum
value again, replace the air cleaner. For
instructions, refer to Group 09 of the M2
Plus Workshop Manual.
3.
Inspect water evacuation components.
f82044204/30/2020
1
1. Washer Fluid Filler Cap
Fig. 22.10, Windshield Washer Reservoir
Pre- and Post-Trip Inspections and Maintenance
22.9