Propeller Installation - Mercury FourStroke 2.5 Service Manual

9. Inspect the sacrificial anode on the bottom of the anti‑ventilation plate for erosion. If it is 50% or more consumed, replace
the anode. Do not paint or apply a protective coating to the anode or corrosion protection will be lost.
Description
Anode bolt

Propeller Installation

Rotating propellers can cause serious injury or death. Never operate the boat out of the water with a propeller installed.
Before installing or removing a propeller, place the drive unit in neutral and engage the lanyard stop switch to prevent the
engine from starting. Place a block of wood between the propeller blade and the anti‑ventilation plate.
1. Insert the drive (shear) pin into the propeller shaft.
2. Slide the propeller onto the propeller shaft and align with the drive (shear) pin.
3. Secure the propeller to the propeller shaft with a new cotter pin.
90-8M0065421 NOVEMBER 2012
a - Anode
a
25649
!
a -
b -
a
a
b
25519
WARNING
Cotter pin
Drive (shear) pin
Gear Housing
Nm lb‑in.
5.6 50
Page 6A-31
lb‑ft