Servicing Fuel And Lubrication Systems - Miller Big Blue 450 Duo CST Owner's Manual

8-10. Servicing Fuel And Lubrication Systems

4-2. Servicing Fuel And Lubrication Systems
tools/
flathead
philips head wrench
knife steelbrush
nutdriver
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Complete Parts List is available at www.MillerWelds.com
Complete Parts List is available at www.MillerWelds.com
6
7
4
allen_wrench
1
pliers needlenose
philips head wrench
crescent wrench
nutdriver
solderiron
chippinghammer
2
3
allen_set
Ref. 804 009 C / 907 427-6
5
knife
crescent wrench
heavy-duty workclamp
stripcrimp
chippinghammer
Stop engine and let cool.
After servicing, start engine and
check for fuel leaks. Stop engine,
tighten connections as necessary,
and wipe up spilled fuel.
1 Oil Filter
2 Oil Drain Valve And Hose
3 Oil Fill Cap
4 Primary (Canister) Fuel Filter Location
5 Fuel Filter Retaining Ring
6 Secondary (In-Line) Fuel Filter
7 Fuel Tank Sludge Drain Valve
To change oil and filter:
Route oil drain hose and valve through hole
in base. See engine manual and engine
maintenance label for oil/filter
information.
To replace primary (canister) fuel filter:
Turn filter retaining ring counterclockwise to
remove. Pull filter straight down to remove.
Fill new filter with fresh fuel. Apply thin coat
of fuel to gasket on new filter. Install new fil-
ter and reinstall retaining ring.
Inspect fuel lines, and replace if cracked or
worn.
To drain water from fuel system:
See engine manual.
To replace secondary (in-line) fuel filter:
Note direction of fuel flow as indicated by ar-
row on side of filter. Remove fuel line clamps
and disconnect fuel lines from fuel filter. Re-
place filter, reconnect fuel lines, and reinstall
clamps.
To drain sludge from fuel tank:
Beware of fire. Do not smoke and
tools/
keep sparks and flames away from
drained fuel. Dispose of drained
fuel in an environmentally-safe
manner. Do not leave unit unat-
tended while draining fuel tank.
flathead philips head
Properly lift unit and secure in a
level position. Use
blocks or stands to support unit
while draining fuel tank.
Attach 1/2 ID hose to drain valve. Put metal
container under drain, and use screwdriver
to open sludge drain valve. Close valve
when sludge has drained. Remove hose.
OM-266621 Page 15
Close door.
steelbrush
OM-266621 Page 45
light-duty workclamp
change
wrench
cr
adequate
nutdriver
chip
wirecutter