MerCruiser 3.0 TKS, User Manual

Page: 73 / 112

Section 5 - Maintenance
90-8M0053372
eng
NOVEMBER 2010 Page 65
Description Nm lb‑in. lb‑ft
Propeller nut (minimum) 75 – 55
7. Bend three tabs on the tab washer down into the grooves in spline washer. After the first use, bend the three 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 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 wood block between propeller blade and anti‑ventilation plate to prevent rotation. Straighten bent tabs on tab
washer.
2. Turn propeller shaft nut counterclockwise to remove nut.
3. Slide tab washer, drive sleeve, propeller and thrust hub off propeller shaft.
Bravo One Propeller Installation
NOTICE
Operating the engine with a loose propeller can damage the propeller, the drive, or drive components. Always tighten the
propeller nut or nuts to specification and check for tightness periodically and at the required maintenance interval.
IMPORTANT: If reusing tab washer, carefully inspect tabs for cracks or other damage. Replace tab washer if condition is
questionable.
a - Propeller shaft
b - Thrust hub
c - Flo‑Torq II drive hub
d - Propeller
e - Drive sleeve
f - Locking tab washer
g - Propeller nut
1. Slide thrust hub onto propeller shaft, with stepped side toward propeller hub.
2. Apply a liberal coat of one of the following lubricants to the propeller shaft.
Tube Ref No. Description Where Used Part No.
34
Special Lubricant 101 Propeller shaft 92-802865Q02
94
Anti-Corrosion Grease Propeller shaft 92-802867Q 1
95
2-4-C Marine Lubricant
with PTFE
Propeller shaft 92-802859A 1
3. Install Flo‑Torq II Drive Hub into propeller.
NOTE: The drive sleeve is tapered and will slide fully into the propeller as the nut is tightened and properly torqued.
4. Align splines and place propeller on propeller shaft.
5. Install drive sleeve and locking tab washer.
6. Install and torque the propeller nut.
a
b
c
d
e
g
6215
f