OM-4422 Page 41
8-9. Servicing Fuel And Lubrication Systems
802 490 / Ref. 801 434 / 803 563
Stop engine and let cool.
After servicing, start engine
and check for fuel leaks.
Stop engine, tighten connec-
tions 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
5 Secondary (In-Line) 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-
formation.
To replace primary (canister) fuel
filter:
Turn filter counterclockwise. Re-
move filter.
Fill new filter with fresh fuel. Apply
thin coat of fuel to gasket on new fil-
ter. Install new filter and turn clock-
wise.
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 indi-
cated by arrow on side of filter. Re-
move fuel line clamps and discon-
nect 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 keep sparks and flames
away from drained fuel. Dis-
pose of drained fuel in an en-
vironmentally-safe manner.
Do not leave unit unattended
while draining fuel tank.
Properly lift unit and secure
in a level position. Use ade-
quate 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.
Close door.
Tools Needed:
6
3
5
2
4
1
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