Oil Filling; Propeller Installation; Installing A 'Long Hub' Type Of Propeller; Installing A 'Short Hub' Type Of Propeller - Volvo Penta AQUAMATIC 280 Workshop Manual

Repair instructions

Oil filling

1. Install the oil drain plug with a new O-ring.
2. Tilt the sterndrive to the full up position. Remove
the fill plug and fill with approx. 2.2 liters of gear oil.
See Technical Data . Install the fill plug with a new
gasket.
Tighten the fill plug to 35 Nm (26 lb.ft.).
Lower the sterndrive and check the oil level with the
dipstick. If necessary, Top off the sterdrive with oil
through the dip stick hole.
3. Install the shift mechanism cover.

Propeller installation

On propellers of earlier manufacture the propeller cone
is locked by a folding washer and on propellers of later
manufacture the cone is locked by a locking screw
through the center of the cone.
Installing a 'long hub' type of
propeller (A)
1. Grease the propeller shaft with a thin layer of
grease.
2. Install the fishing line deflector (5).
3. Install the propeller.
4. Install the plastic washer.
5. Install the propeller cone (1) and tighten it.
6. Install and tighten the center screw.
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Installing a 'short hub' type of
propeller (B)
1. Grease the propeller shaft with a thin layer of
grease.
2. Install the fishing line deflector (5, figure on previ-
ous page).
3. Install the propeller.
4. Alternative 1: (Threaded hole in the propeller
shaft center). Insert the plastic washer (3).
Alternative 2: (No threaded hole in the propeller
shaft center). Insert the folding washer (4).
5. Install the spacer ring, (2).
6. Install and tighten the propeller cone (1).
7. Alternative 1: Install and tighten the center
screw.
Alternative 2: Fold the washer (4) against the
spacer ring (2).
NOTE! The sterndrive model 280B, ratio 1.61:1, is
different from model 280D and model 270, ratio
2.15:1. The difference is to be found in the fact that
the propellers have 'long hubs' and 'short hubs' re-
spectively. See the picture.
NOTE! Short hub propellers (folding washer and cone)
will be replaced by long hub propellers (plastic washer,
cone, center bolt). When installing long hub propellers
on older sterndrives, the propeller shaft must be drilled
and tapped for use of cone with center bolt.
Use drill jigg 885149 to drill the propeller shaft elimi-
nating the need to remove the shaft from the drive unit
as follows:
1. Install drill jigg on propeller shaft.
2. Drill a 6.5 mm (0.255") hole to a depth of 20 mm
(0.787"). Use cutting oil to cool shaft. Clean thor-
ougly.
3. Usa a 5/16"-18 UNC taps to thread shaft. Clean
thorougly.
4. Install propeller, plastic washer, cone and center
bolt. Torque: cone = 110 Nm (81 ft.lb.), bolt =
22 Nm (16 ft.lb.).