Section 5 - Maintenance
90-8M0053363
eng
NOVEMBER 2010
Page 99
NOTE: If the boat is operated at idle for prolonged periods of time, coupler should be lubricated every 50 hours
Bravo drive coupler
a -
Grease fitting
Tube Ref No.
Description
Where Used
Part No.
91
Engine Coupler Spline
Grease
Coupler
92-802869A 1
NOTE:
On Bravo models,
the coupler and shaft splines can be lubricated without removing the sterndrive. Apply lubricant from
a typical hand‑operated grease gun until a small amount of grease begins to push out.
Propellers
Propeller Repair
Some damaged propellers can be repaired. Contact your authorized Mercury MerCruiser dealer.
Bravo Three Propeller Removal
!
WARNING
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.
a -
Propeller
b -
Propeller shaft nut
c -
Propeller shaft anode
d -
Propeller shaft anode screw
e -
Flat washer
f -
Star washer
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.
a
a
14535
a
b
d
c
f
e
5303