How to Replace & Install a New Propeller

Modified on Mon, 3 Feb at 8:48 AM

Proper installation of the propeller and anode is essential for optimal performance and longevity of your BLADE Outboard motor. Follow these steps carefully to ensure a secure and efficient setup. For reference, consult the exploded view diagram and diagrams showing how to insert the shaft, attach the lock washer, and install the lock nut.

Identifying the Key Parts

Before you begin, familiarize yourself with the key components of the propeller and anode system, as shown in the exploded view:

#7 – Propeller
#16 – Anode Screw
#17 – Anode Lock Washer
#11 – Anode
#15 – Shaft Lock Washer
#14 – Lock Nut
#18 – Locating Shear Pin

Step 1: Inserting the Shear Pin into the Shaft

The first step is to insert the shear pin into the shaft. The shear pin is crucial as it prevents damage to the motor in case of an obstruction by breaking under excessive force.

Step 2: Fitting the Propeller onto the Shear Pin

Once the shear pin is properly in place, fit the propeller onto the shear pin. Ensure that the propeller is aligned correctly to the shaft, and the shear pin fits snugly into the propeller’s corresponding hole.

Step 3: Installing the Shaft Lock Washer

Next, place the shaft lock washer (#15) onto the shaft over the propeller. This washer ensures that the lock nut will stay securely in place and prevent the propeller from loosening during operation.

Step 4: Attaching the Lock Nut

Place the lock nut (#14) over the shaft lock washer. Tighten the lock nut using a torque wrench, applying a torque value between 7-10 Nm. Do not over-torque the lock nut, as this can damage the threads and affect the performance of the motor.

Important Note: Do not use any threadlocker (such as Loctite) on the lock nut, as this can interfere with proper torque and locking functionality.

Step 5: Installing the Anode

Follow the installing the anode help section HERE.

Troubleshooting: Propeller Not Spinning

If you notice that your propeller does not spin when the motor is running, this could indicate that the shear pin is broken. In this case, follow these steps:

Replace the Shear Pin: Remove the broken shear pin and install a new one, ensuring it is securely placed in the shaft.
Inspect the Propeller: Carefully inspect the backside of the propeller to check for any damage or wear. If necessary, replace the propeller to ensure continued reliable operation.