Hot Check
• Operate the transmission in a drive range
until normal operating temperature, 160 to
200°F (71 to 93°C), is reached.
• Park the vehicle. Shift to neutral (N) and ap-
ply the parking brake. Let the engine run at
idle.
• Wipe the dipstick clean and check the fluid
level. A safe operating level is any level
within the HOT RUN (upper) band on the
dipstick.
• If the fluid is not within this range, add or
drain fluid as needed to bring the level to the
top of the HOT RUN band. See Group 26 of
the
Cargo Maintenance Manual
for fluid types
and capacities.
Cold Check
• A cold check may be made when the sump tem-
perature is 60 to 104°F (15 to 40°C).
• Run the engine for at least one minute to clear
the fluid system of air.
• With the engine running, wipe the dipstick clean
and check the fluid level. Any level within the
COLD RUN (lower) band is satisfactory for oper-
ating the vehicle. If the level is not within the
COLD RUN band, add or drain fluid until it
reaches the middle of the COLD RUN band.
• Perform a hot check at the first opportunity after
normal operating temperature, 160 to 200°F (71
to 93°C), is reached.
15.
Check the fuel water separator, if equipped, for
contaminants.
With the engine shut down, partially open the drain
valve under the collection bowl and drain water and
contaminants as needed.
16.
Lower the cab. Close the drain valves on the air
brake system air tanks.
17.
Inspect the fuel tank(s) and fuel line connection. If
equipped, be sure the fuel tank shutoff valves are
open.
Replace leaking fuel tanks. Repair or replace any
lines or connections that are leaking. For proce-
dures, see Group 47of the
Cargo Workshop
Manual
.
If equipped with fuel tank shutoff valves, be sure
the valves are fully open.
WARNING
Never operate the engine with the fuel tank shutoff
valves partly closed. This could damage the fuel
Pretrip Inspection and Daily Maintenance
9.8
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