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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.
5.4.5 Check the valve clearance
Checking and adjusting the valve clearance should only be done by professional. See “Valve” under
“Technical Data”.
5.4.6 Check starter and alternator
Checking and maintenance work on the starter and alternator should only be done by professional.