Marine Power Solutions MP-4120Ti, Руководство по эксплуатации

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5.4.3 Change oil in gearbox
The oil in the gearbox should be cleaned after 200 hours or at least once a season.
Remove the plug under the gearbox and allow the oil to run out, Then reinsert the plug and fill up
with oil. Make sure that the oil level is between the maximum and minimum levels indicated on the
dipstick.
Note: Do not exceed the maximum level. See
“technical Data” for type and volume of oil to be used.
5.4.4 Check/change the impeller
The impeller may become damages, for example through lack of water in the pump due to blocked
intake. Close the bottom cock. Then remove the pump cover and inspect the impeller. If it has been
damaged it should be replaced. Remove the impeller with a pair of adjustable pliers, and fit a new.
Then refit the pump cover with a new seal. Open the bottom cock again.
Warning: Watch out for water leakage.