Propellers - Volvo Penta MD22L Instruction Book

Propellers

When fitting a propeller to specific boat-engine combi-
nation it is sometimes hard to select the proper sized
propeller for varying load and weather conditions.
Therefore Volvo Penta offers a wide range of propel-
ler sizes and types. In some boats there are advan-
tages to selecting a propeller that limits engine rpm
including lower fuel consumption, lower noise, lower
vibration and better propeller efficiency.
WARNING! Remove the key from the instrument
panel or cut the power using the main switch before
starting work on the propeller.
Fitting S-drive propeller
3
2
4
5
6
8
7
1. Proppeller hub
2. Pin
3. Propeller blade
4. Propeller blade gear 9. Zinc anode*
5. Locking screw
* NB: Check the zinc ring before fitting the propeller.
A magnesium anode should be used when running in
freshwater.
9
1
6. Locking nut
7. Tab washer
8. Locking screw
1. Carefully clean the propeller shaft and propeller hub (1).
2. Lubricate the shaft pivot and hub (grease pad
828250-1).
3. Fit the propeller hub to the shaft. Place one
propeller blade in the propeller hub and clamp a
wooden wedge between the propeller blade and
the hull of the boat. Tighten the lock nut (6).
Tightening torque 70 Nm. (7.0 kpm, 53 ft.lbs). Use
24 mm socket.
4. Locate the tab washer (7) on the nut so that the
tabs are easily accessible.
5. Install the locking screw (8). Tightening torque 20
Nm. (2.0 kpm, 15 ft.lbs).
6. Bend the tab which is in the best position up
against the screw head.
7. Apply water resistant grease on the shaft pins (2)
and the propeller blade gears (4).
8. Install one propeller blade in the propeller hub and
push in the shaft pin so that it is positioned with
the machined groove centered on the locking
screw hole.
9. Screw in and tighten the locking screw (5) using a
6 mm hexagon key.
Tightening torque 20 Nm. (2.0 kpm, 15ft.lbs).
10. Repeat the procedure for the other propeller blade
and check the blades have the same angle in
relation to the propeller shaft.
Note: The internal socket screw (5) and tab washer
(7) (see illustration) must be replaced every fourth
year. Only Volvo Penta Original locking screws (8)
may be used.
31