Kohler 12.5EFORDB Funcionamento - Página 24

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3.4.2

Fuel Filter

The quality and condition of the fuel largely determine

the filter's useful life. Replace the fuel filter element as

listed in the service schedule. Section 1 shows the

typical location of a fuel filter.

procedure below to replace the fuel filter.

Fuel Filter Cleaning/Replacement Procedure

1. Close the fuel supply valve.

2. Loosen the fuel filter by turning it counterclockwise.

Remove the fuel filter and use rags to clean up

spilled fuel oil. Dispose of the fuel filter in an

approved manner.

3. Clean the contact surface of the fuel oil filter

adapter.

4. Lightly lubricate the gasket surface of the new fuel

filter with fresh fuel oil. Thread the filter on the

adapter

until

the

hand-tighten the filter an additional one-half turn.

Wash hands after any contact with fuel oil.

5. Open the fuel supply valve.

6. Bleed the system. See Section 3.4.4, Bleeding the

Fuel System.

3.4.3

Fuel/Water Separator

These model generator sets includes a fuel/water

separator. The fuel/water separator helps to remove

water and sediment from the fuel system.

1. Air bleed screw

2. Drain plug

3. Drain valve

Figure 3-4 Fuel/Water Separator

Section 3 Scheduled Maintenance

Use the applicable

gasket

makes

contact;

GM32181

Fuel/Water Separator Draining Procedure

At the interval specified in the service schedule, drain

the water from the fuel/water separator. Hold a suitable

container beneath the fuel/water separator and push up

on the drain valve. See Figure 3-4. Release the valve

when fuel (free of water) flows from the fuel/water

separator.

Fuel/Water Separator's Element Replacement

Procedure

At the interval specified in the service schedule, replace

the fuel/water separator element.

1. Close the fuel valve at the nearest point to the water

filter inlet or at the fuel tank.

2. Remove the water drain plug (or push up the drain

valve) and allow water and fuel to flow into a

suitable container.

Note: Depending upon the location of the fuel valve, a

considerable amount of fuel may drain out.

3. Remove the separator's element from the mounting

head by twisting in a counterclockwise direction.

4. Remove the bowl from the fuel/water separator

element. Wipe the excess fuel from the bowl and

the O-ring. Do not discard the bowl or O-ring.

5. Inspect the components for wear or damage.

Replace parts as necessary.

6. Lubricate the O-ring with clean diesel fuel and

replace it in the bowl.

7. Install the bowl onto a new fuel/water separator

filter element.

8. Lubricate the bowl/element assembly with clean

fuel.

Install the bowl/element onto the filter

mounting head.

9. Replace the water drain plug (if removed) and

close the vent.

10. Remove the air bleed screw from the fuel/water

separator.

11. Open the fuel supply valve.

12. After fuel fills the water separator, allow fuel to flow

from the air bleed hole until all air is displaced (fuel

flows free of air bubbles).

13. Replace the air bleed screw.

TP-6551 2/14