Western Star 47X 2020, Руководство по обслуживанию

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3. Put a clean receptacle under the fuel/water sepa-
rator and attach a piece of hose to the drain
valve, to direct fuel into the receptacle.
The drain valve ( Fig. 3 , Item 7) has a 3/4-inch
(19-mm) slip-on hose connection.
4. Remove the vent cap, shown in Fig. 3 , to drain
the fuel completely, then close the drain valve.
5. Using a DAVCO Collar Wrench, shown in Fig. 4 ,
remove the collar and clear cover.
NOTE: Broken vent cap and collar warranty
claims will not be accepted if any tool other than
a DAVCO Collar Wrench (part number 482017)
is used for removal. During installation, the vent
cap is to be
hand-tightened only , not tightened
with a wrench.
6. Remove the filter, cover O-ring, and vent cap
O-ring. Dispose of them in an environmentally
acceptable manner. See
Fig. 3.
7. Clean all threads and sealing surfaces very thor-
oughly. Even a small amount of dirt will prevent
the fuel/water separator from sealing, and an air
leak may result.
8. Install the new filter and grommet assembly and
cover O-ring on the housing.
Position the filter element so the key is lined up
with the keyway on the separator plate of the
housing. Use the arrow on the top of the end-
plate to align the filter. See
Fig. 5 . Ensure the
filter element is fully seated by firmly pushing on
the endplate. The filter should not rotate freely.
9. Install the clear cover and the collar. Simultane-
ously apply downward pressure to the top of the
clear cover until it is seated on the body of the
lower housing and hand tighten the collar until it
no longer spins freely. Using the collar wrench,
tighten the cover 18 lbf·ft (24 N·m). This is
equivalent to rotating the collar clockwise two or
f470755 04/20/2020
1
2
3
4
5
6
7
1. Vent Cap
2. Clear Cover
3. Filter Element
4. Collar
5. Inlet Port
6. Outlet Port
7. Drain Valve
Fig. 3, DAVCO Fuel Pro 385
02/16/2009 f470277
VENT CAP
FOR REMOVAL OF TOP COLLAR ONLY
Fig. 4, DAVCO Collar Wrench
f470757 04/17/2020
1
2
3
4
1. Endplate
2. Arrow
3. Keyway
4. Key
Fig. 5, Positioning the Filter Element
Fuel
47
47X and 49X Maintenance Manual, August 2020
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