8 - PROPULSION SYSTEM 278
Pieces should not show burrs or dents to make the coupling effective. It is
essential to lubricate them with plenty of silicon grease.
Tighten the nut (4) locking the propeller on the shaft (9);on the propeller hub
there are three holes to 120°. Tighten as necessary to insert the dowel (3),to
avoid natural loosening.
For disassembly keep an extractor at disposal so as not to deform the pro-
peller.
In case of obstacles or excessive sticking, heat the propeller to expand the
coupling and ease the removal.
CAUTION
Avoid the use of hammers or mallets to pull out the propeller. The pull out
force must be uniformly exerted on the entire hub of the propellers.
Hereunder a list of the components of shafts and propellers line:
1. Screw
2. Propeller anode
3. Dowel
4. Nut
5. Propeller
6. Shaft support bushing
7. Shaft support
8. Countersunk screws with notch
9. Propeller shaft
1
2
5
7
8
9
6
4
3
4
5
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