FUEL
SYSTEM
FUEL
FILTERS
The
fuel injection pump and the fuel injectors are precisely
manufactured and they must receive clean diesel fuel, free
from water and dirt. To ensure this flow
of
clean fuel, the fuel
must pass through at least two fuel filters, a fuel water
sepa-
rator and the engine's spin-on fuel filter. Visually inspect,
clean, and change these filters according to the maintenance
schedule in this manual.
··A-WARNING:
Shut
off
the
fuel
valve
at
the
tank
when
servicing
the
fuel
system.
Take
care
in
catching
any
fuel
that
may
spill.
DO
NOT
allow
any
smoking,
O/lflll
flames
Df.
other
sources
of
fire
near
the
fuel
sys·
tem
when
servicing.
Ensure
proper
ventilatitlll
exists
when
servicing
the
fuel
system.
Changing
the
Fuel
Filter/20.0
KW
and
25
KW
1. Shut the fuel supply off.
2. Loosen the fuel filter turning counterclockwise with a
filter wrench.
NOTE:
The
cartridge contains
fueL
Take
care
not
to
spill it
during
disassembly.
Perform
the
PRIMING
THE
FUEL
SYS-
TEM after
replaCing
the
spin-on
filter.
3.
Wipe clean the sealing face on the housing bracket with a
rag, so the new filter
will seat properly.
4. Lightly oil the sealing o-ring on the new filter. To
rein-
stall, tum the filter assembly clockwise carefully until the
o-ring contacts the sealing surface
of
the housing bracket.
Turn 2/3 further with the filter wrench.
5.
Tum on the fuel and start the engine. The normal preheat
function should quickly prime the system
~d
the
engine
should start.
If
the engine should fail to start immediately,
follow the
Priming instructions in this section.
PRESSURE
GAUGE
LOCATION----
BLEED
FUEL
FILTER
120·
AND
25-
KWJ
Changing
the
Fuel
Filter/32.0
KW
1.
Shut off·the fuel supply.
2.
Open the bleed screw on top
of
the filter. Place a con-
tainer under the fuel filter and open the drain on the bot-
tom
of
the bowl and drain the fuel.
3.
Close the drain and unscrew the bolt that secures the
bowl. The bowl and filter will drop down.
4.
aean
the base. Install a new sealing ring in the base
making certain that it lies squarely on the base recess.
5. Replace the upper sealing'ring and the
"o"
ring in the fil-
ter head. Install the new filter element and re-install the
retaining bolt.
6. Bleed the air from the filter assembly.
FUEL
FILTER
[32
KW]
'BLEED
SCREW
SEALING
RING
FUEL
FEED
PUMP
STRAINER/32
KW
An additional fuel filter is located in the feed pump. This fil-
ter (strainer) is removed for cleaning
by
releasing the banjo
bolt at the bottom. This strainer should be cleaned every
250
operating hours. Use compressed air and/or clean with
kerosene.
FUEL
FEED
PUMP
[32
KW]
l"MriWESIERBEICE
l Engines & Generators
17
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