Servicing Fuel And Lubrication Systems - Miller Big Blue 800 DUO PRO Owner's Manual

8-7. Servicing Fuel And Lubrication Systems

!
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 Fuel Filter
5 Secondary Fuel Filter
6 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 change in-
OM-262 752 Page 50
.
Complete Parts List available at www.MillerWelds.com
5
4
6
formation.
To replace fuel filters:
For primary fuel filter, disconnect water sen-
sor connection.
Turn filter counterclockwise. Remove filter.
Apply thin coat of fuel to gasket on new filter.
Fill filter with fuel. Install filter and turn clock-
wise. For primary fuel filter, reconnect water
sensor. Bleed air from fuel system accord-
ing to engine manual.
Inspect fuel line, and replace if cracked or
worn.
Close doors.
To reset service reminder intervals shown
3
1
2
on the Engine Display, see Sections 12-12
and 12-13.
To drain sludge from fuel tank:
!
Beware of fire. Do not smoke and
keep sparks and flames away from
drained fuel. Dispose of drained fuel
in an environmentally-safe manner.
Do not leave unit unattended while
draining fuel tank.
!
Properly lift unit and secure in a level
position. Use adequate blocks or
stands to support unit while drain-
ing 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.
Tools Needed:
907 587−2