comply with the washer fluid manufacturer’s rec-
ommended safety precautions.
1.
Check the windshield washer reservoir fluid level.
2.
After resetting the air intake restriction indicator
during the daily pretrip inspection, check the indi-
cator again with the engine off.
2.1
Check an indicator with graduations to see
if air restriction exceeds the value shown
in Table 11.2.
Check a go/no-go indicator without gradu-
ations to see if the colored bar shows
through the clear window.
Air Intake Maximum Restriction Values: (inH
2
O)
Engine Make
Pre-EPA07
Engines
EPA07 Engines
Caterpillar 25 —
Cummins 25 25
Detroit
™
20 22
Mercedes-Benz 22 22
Table 11.2, Air Intake Maximum Restriction Values
2.2
If air restriction exceeds the maximum al-
lowable value, operate the vehicle for one
more day, making sure not to run the en-
gine 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 ele-
ment. For instructions, refer to Group 09
of the
Century Class Trucks Workshop
Manual
.
3.
If the vehicle is equipped with an Allison auto-
matic transmission, check the automatic trans-
mission fluid level.
4.
Check for water in the fuel/water separator, if
equipped.
IMPORTANT: When draining fluid from a
fuel/water separator, drain the fluid into an
appropriate container and dispose of it prop-
erly. Many jurisdictions now issue fines for
draining fuel/water separators onto the
ground.
4.1
Place a suitable container under the fuel/
water separator.
NOTE: A hose may be used to direct water
into the container. Use a hose with a ½-inch
pipe thread on DAVCO models.
4.2
If the engine is equipped with a built-in
water separator, loosen the drain valve,
and allow the water to run out. Close the
drain valve, taking care not to overtighten
it.
4.3
Alliance/Racor Models
: Turn the drain plug
counterclockwise to open it. See Fig. 11.9.
DAVCO Models
: Remove the vent cap
and open the drain. See Fig. 11.10.
IMPORTANT: Water in the fuel/water separa-
tor will appear as beads. Drain the fuel/water
separator only enough to remove the water.
Stop draining fluid when fuel begins to drain
out. If the fuel/water separator is drained of
fuel, it will be necessary to prime the fuel
02/03/2010 f470552
1
2
3
4
5
6
7
8
9
10
11
1. Washers (qty 2)
2. Nuts (qty 2)
3. Frame Rail
4. Fuel Outlet Port
5. Fuel Inlet Port
6. Priming Pump
7. Mounting Head
8. Mounting Bolts (qty 2)
9. Filter Element
10. Sight Bowl
11. Drain Plug
Fig. 11.9, Alliance Fuel/Water Separator Assembly and
Installation
Pretrip and Post-Trip Inspections and Maintenance
11.10
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