Bravo Three Propeller Removal - MerCruiser 4.3 TKS User Manual

Description
Propeller nut (minimum)
6. Bend 3 tabs on the tab washer down into the grooves in spline washer. After the first use, bend the 3 tabs straight and
retorque the propeller nut. Bend tabs back down into spline washer. Check propeller at least after 20 hours of operation.
Do not operate with loose propeller.

Bravo Three Propeller Removal

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. Place wood block between propeller blades and anti‑ventilation plate to prevent rotation.
2. Remove the bolt and washers securing the propeller shaft anode.
3. Remove the propeller shaft anode.
b
c
d
f
e
4. Turn aft propeller shaft nut 37 mm (1‑7/16 in.) counterclockwise to remove nut.
5. Slide propeller and thrust hub off propeller shaft.
6. Turn front propeller shaft nut 70 mm (2‑3/4 in.) counterclockwise to remove nut.
7. Slide propeller and thrust hub off propeller shaft.
NOTE: Some damaged propellers can be repaired. Contact your authorized Mercury MerCruiser dealer.
b
a
i
j
g h
90-8M0053372 NOVEMBER 2010
eng
!
e
f
d
c
WARNING
a - Propeller
b - Propeller shaft nut
c - Propeller shaft anode
d - Propeller shaft anode screw
e - Flat washer
f - Star washer
a
5303
a -
b -
c -
d -
e -
f -
g -
h -
i -
j -
5304
Section 5 - Maintenance
Nm lb‑in.
81 –
Rear propeller nut
Rear propeller
Rear propeller thrust hub
Front propeller nut
Front propeller
Front propeller thrust hub
Propeller shaft anode screw
Flat washer
Star washer
Propeller shaft anode
lb‑ft
60
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