Section 5 - Maintenance
90-8M0070920 eng AUGUST 2012 Page 55
The engine mounted water‑separating fine element fuel filter is equipped with a water‑in‑fuel sensor to alert the operator when
water is present in the filter. This filter needs to be replaced at specified intervals or whenever water is detected in the fuel,
whichever occurs first.
The operator will be alerted when the water‑in‑fuel sensor has detected water in the fuel if the boat is equipped with the proper
instrumentation. Refer to Instrumentation.
When the engine is equipped with a remote mounted prefilter, it should be drained or replaced at specified intervals, or
whenever water is detected in the water‑separating fine element fuel filter. Refer to Fuel Prefilter.
Draining
The engine mounted water‑separating fine element fuel filter can be drained of water and sediment by removing the
water‑in‑fuel sensor located on the bottom of the filter.
NOTE: In warm weather, drain the filter before starting daily operations. In cold weather, when there is a possibility the water
will freeze, drain the filter shortly after the end of daily operations.
NOTE: Dispose of fuel and old filters in a safe manner in accordance with all local, federal, and international regulations.
1. Place a suitable container under the water‑separating fine element fuel filter.
2. Remove the water‑in‑fuel sensor from the bottom of the filter.
Water-separating fine element fuel filter
a - Hand pump
b - Water‑separating fine element fuel filter
c - Water‑in‑fuel sensor
d - Water‑in‑fuel sensor connector
3. Drain the filter until the fuel is clean in appearance.
4. Install the sensor and tighten securely.
5.
Fill the new fuel filter with clean diesel fuel. Refer to Filling.
Replacing
!
WARNING
Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or
death due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the
battery before maintaining, servicing, installing, or removing engine or drive components.
IMPORTANT: The water‑separating fine element fuel filter cannot be cleaned and reused. It must be replaced. Be sure to
replace the filter with a filter of the same specifications to eliminate possible damage to the fuel system components.
1. Disconnect both battery cables from the battery.
Water-separating fine element fuel filter
a - Hand pump
b - Water‑separating fine element fuel filter
c - Water‑in‑fuel sensor
d - Water‑in‑fuel sensor connector
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