Mercury 4.3 TKS series, Operation & Maintenance Manual

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Section 4 - Maintenance
Page 48 90-8M0113857
eng
DECEMBER 2015
Bravo One 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 a wood block between the propeller blade and the anti‑ventilation plate to prevent rotation. Straighten bent tabs on
tab washer.
2. Turn the propeller shaft nut counterclockwise to remove the nut.
3. Slide the tab washer, drive sleeve, propeller, and thrust hub off the propeller shaft.
Bravo One Propeller Installation
IMPORTANT: The selected propeller's rotation must match the forward gear direction of propeller shaft rotation.
1. Liberally lubricate the propeller shaft spline with one of the following Quicksilver lubricants.
Tube Ref No. Description Where Used Part No.
95
2-4-C with PTFE Propeller shaft splines 92-802859A 1
Extreme Grease Propeller shaft splines (saltwater only) 8M0071842
NOTE: Extreme Grease is for saltwater applications only.
2. Install the propeller with the attaching hardware as shown.
3. Tighten the propeller nut to the specified torque.
Typical Bravo One models
a - Propeller shaft splines
b - Forward thrust hub
c - Flo‑Torque II drive hub
d - Propeller
e - Drive sleeve adapter
f - Tab washer
g - Propeller nut
NOTE: The specified torque is a minimum torque value.
Description Nm lb‑in. lb ft
Bravo One propeller nut
136 – 100
Then align tabs with grooves
4.
Models equipped with the tab washer
: Continue to tighten the propeller nut until the three tabs on the tab washer align
with the grooves on the spline washer.
5. Bend the three tabs down into the grooves.
a - Propeller
b - Tab washer
c - Drive sleeve adapter
d - Tab bent down
e - Propeller nut
a
b
c
d
e
g
f
5301
a
b
c
d
e
4750