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Draining Fuel Filter / Water

Separator

Water and sediment can clog the fuel filter

and impair the function of the fuel injection

pump and valve. If heavy deposits of water

and sediment are drained, also drain the fuel

tank.

(

1

)

(

2

)

0004916

Figure 6

1. Close the fuel cock of the fuel tank.

2. Remove the two mounting screws

(Figure 6, (1)) and remove the housing

(Figure 6, (2)).

3. Put a pan under the drain cock.

4. Loosen the drain cock of the water

separator and drain off any water or dirt

collected inside.

5. Install housing and mounting screws.

6. Bleed air from the fuel system. See

Bleeding the Fuel System on page 29.

Checking the Battery Electrolyte

Level (Serviceable Batteries Only)

WARNING! Batteries contain sulfuric

acid. NEVER allow battery fluid to come

in contact with clothing, skin or eyes.

Severe burns could result. ALWAYS

wear safety goggles and protective

clothing when servicing the battery. If

battery fluid contacts the eyes and / or

skin, immediately flush the affected area

with a large amount of clean water and

obtain prompt medical treatment.

NOTICE: NEVER turn off the battery

switch (if equipped) or short the battery

cables during operation. Damage to the

electric system will result.

Note: Battery fluid tends to evaporate in high

temperatures, especially in summer. In such

conditions, inspect the battery earlier than

specified.

1. Turn the battery master switch to OFF

(if equipped) or disconnect the negative

(-) battery cable.

2. Do not operate with insufficient battery

electrolyte as the battery will be

destroyed.

3. Remove the plugs and check the

electrolyte level in all cells. NOTICE:

NEVER attempt to remove the

covers or fill a maintenance-free

battery.

4. If the level is lower than the minimum fill

level (Figure 7, (1)), fill with distilled

water (Figure 7, (2)) (available in the

grocery store) up to the upper limit

(Figure 7, (3)) of the battery.

UPPER LEVEL

LOWER LEVEL

(2)

(3)

(1)

0004566

Figure 7

Note: The maximum fill level is

approximately 10 - 15 mm

(3/8 - 9/16 in.) above the plates.

PERIODIC MAINTENANCE

62 6LPA Series Operation Manual

© 2007 Yanmar Marine International

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