OPM 250 en-GB 45
©
Scania CV AB 2016, Sweden
Cooling system
Checking the sacrificial an-
odes
• Empty the sea water circuit and check the sac-
rificial anodes.
• Scrape off all loose material from the anode.
• Renew if less than half the anode is left. A
new anode is 60 mm long with a diameter of
17 mm.
• If the sacrificial anodes are very corroded, the
inspection interval must be reduced
Checking the sea water pump
impeller
• Close the bottom valve if the sea water pump
is below water level.
• Drain the sea water circuit.
• Take off the sea water pump cap.
• Check that the vanes of the impeller are not
heavily splintered or damaged.
If the impeller must be renewed frequently, the
cleaning of the sea water must be improved.
Renewing the impeller
• Pull out the impeller using puller 98 482.
• Fit a new impeller and cap. Check that the cap
seal is not hard or damaged.
There should be a spare impeller on board.
The impeller can be deformed during extended
periods of inactivity. Renew the impeller before
starting or remove the impeller before longer pe-
riods of stoppage. See also "Preparations for
storage".
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