Kohler 6EF Funzionamento - Pagina 30

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3.7.5

Anticorrosion Zinc Anode

The heat exchanger on these models contains an

anticorrosion zinc anode (plug) to prevent electrolytic

corrosion by seawater.

Check and replace the anticorrosion zinc anode at

intervals recommended in the service schedule.

Depending upon operating conditions and seawater

properties, the anticorrosion zinc anode may require

more frequent replacement. See Section 1—Service

Views for location and use the following procedure.

Anticorrosion Zinc Anode Replacement Procedure

1. With the generator set cooled, close the seacock,

remove the anticorrosion zinc plug from the heat

exchanger, and drain the coolant into a suitable

container.

2. Use a wire brush to remove the loose corrosion on

the anticorrosion zinc anode. Replace the anode

according to Figure 3-10 and Figure 3-11.

Anticorrosion Zinc Anode Replacement

New Anode

Models

Dimensions mm (in.)

5/7.3E and

9 (0.34) x 43 (1.7)

4/6EF

Figure 3-10 Anticorrosion Zinc Anode (Plug)

Measurements

Section 3 Scheduled Maintenance

1. Diameter: 9 mm (0.34 in.)

2. Length: 43 mm (1.7 in.)

Figure 3-11 Anticorrosion Zinc Anode (Plug)

3. Clean the threaded hole of the heat exchanger and

4. Open the seacock. Refill the cooling system.

5. Start the generator set and check for leaks at the

Replace When

Percent of Zinc

Remaining Is:

3.7.6

<50% of

Check the seawater outlet at the interval specified in the

length/diameter

service schedule. See Figure 3-9 for location. Remove

any obstructions to keep the outlet clear.

coat the threads of the anticorrosion zinc anode

(plug) with pipe sealant suitable for marine

applications. Install the anticorrosion zinc anode

into the heat exchanger.

anticorrosion zinc anode location. The pump is

operating if cooling water flows from the exhaust

outlet. If water is not discharging at the exhaust

outlet, see Prestart Checklist—Seawater Pump

Priming.

Seawater Outlet

TP-5586-3

TP-5985 10/02