Owner`s manual

2011 Owners Manual...Propeller Maintenance...Page 19-1

Propeller Maintenance

Propeller damage is caused by striking solid objects. If the propeller is not rotating at the time it strikes

a solid object, the damage is usually conﬁned to just one blade and may be diﬃcult 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. ere should be no more than 3/32-inch variance between the blades.

If the propeller is damaged, see an authorized MasterCraft dealer.

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.

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.

Step 5: oroughly clean and apply a light coat of waterproof marine multi-purpose grease to the splined

area of the shaft and propeller.

Step 6: Align the splines and carefully install the propeller onto the shaft. DO NOT FORCE THE PROPEL-

LER INTO PLACE.

Step 7: Install the propeller nut and torque to 50-ft-lbs.

Step 8: Install a new cotter pin and bend the ends around the shaft to lock the propeller on the shaft.