
PERIODIC MAINTENANCE
6LPA Series Operation Manual 63
12/05
Perform the following maintenance every
250 hours or one year of operation,
whichever comes first.
• Replacing the Fuel Filter Element
• Changing the Coolant
• Checking or Replacing the Zinc
Anodes
• Adjusting the Remote Control Cable
• Cleaning the Turbocharger
• Cleaning the Air Cleaner
Replacing the Fuel Filter Element
See Replacing the Fuel Filter Element on
page 59.
Changing the Coolant
Replace the coolant every year.
Note: If Long Life coolant is used,
replace coolant every 2 years.
1. Drain the fresh water cooling system.
See Drain Seawater Cooling System on
page 74.
2. Fill the cooling system with clean
coolant. See Checking and Adding
Coolant on page 34.
Checking or Replacing Zinc Anodes
Inspect and replace the zinc anodes
periodically.
If zinc anodes are not replaced
periodically, corrosion and engine damage
will result.
1. Close the seacock.
2. Drain the seawater cooling system. See
Drain Seawater Cooling System on
page 74.
Figure 8
Figure 8
3. Remove all the plugs ((Figure 9, (1)),
(Figure 10, (3)), (Figure 11, (4)),
(Figure 12, (2)) and (Figure 13, (2)))
labeled ZINC (Figure 8, (1)).
4. Measure the remaining zinc in the plug.
Replace the zinc anode when it is less
than one-half its original size. See chart
for sizes.
5. Install a new zinc in a new plug.
NEVER use sealing tape to install the
zinc anode. The anode must make
metal-to-metal contact.
6. Install plug.
7. Open the seacock and check for leaks.
Figure 9
Fuel Cooler
Figure 9
Every 250 Hours of Operation
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