2021 OWNERS MANUAL / 390
usually confined to just one blade and may be dicult to see. If the
propeller is rotating when it strikes an object, usually the resulting
damage can easily be seen on all blades.
CHECKING/REPAIRING
PROPELLERS
Step 1
Ensure the engine is OFF and the emergency safety stop switch is
disconnected.
Step 2
Clamp a small rule scale to the shaft strut, parallel to the shaft so
that the end of the scale is 3/32-inches from the leading edge of a
propeller blade.
Step 3
Rotate the propeller slowly. There should be no more than 3/32-
inch variance between the blades. If the propeller is damaged, see
an authorized MasterCraft dealer for repair or replacement as
necessary.
CHANGING PROPELLERS
Step 1
Ensure the engine is OFF and the engine safety starting switch is
disconnected.
Step 2
Remove and discard the cotter pin.
Step 3
Remove the propeller nut with a 1 1/8” wrench.
Step 4
Tap the center hub of the propeller with a rubber mallet to release
the propeller. Inspect the shaft and propeller splines for damage.
2021MCOwnerManualFINAL.indd 390 8/26/20 1:54 PM
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