Mechanical Propulsion Components; Steering - Hunter e33 Operator's Manual

Underwater Gear
Your underwater Gear consists of the following:
• Propulsion components (sail drive)
• Steering components
• Seawater Intake, and discharge skin fittings
• Monitoring Equipment
• Keel

6.1 Mechanical Propulsion Components

DANGER
!
Keep clear of moving parts at all times. Protect
moving parts from access during normal use.
Propulsion components are any component that would
be involved in the movement of your boat. This section
will detail the components that are submerged or under-
water most of the time. Fig 6.1 will detail most of the
components.
6.1.1 Propellers
The propeller supplied with your boat has been select-
ed as the best propeller for average use. Propellers
use "pitch" or the angle of the blades to determine
the amount of power exerted from your engines. Do
not change the pitch of your propellers without get-
ting your dealers recommendations first. If you change
to a different propeller pitch, under no circumstances
use a propeller which allows the engine to operate
Fig. 6.1
Hunter e33 • Underwater Gear
at a higher than recommended RPM. Your engine
manual will specify the maximum recommended RPM.
To maintain rated power, propellers should be free of
nicks, excessive pitting and any distortions that alter them
from their original design. Badly damaged propellers
should be replaced, but those that are chipped, bent or
merely out of shape can be reconditioned by your marine
dealer.
Consider keeping an extra propeller on your boat. If the
propeller becomes damaged, you can replace it with the
spare and continue your outing. Check with your dealer
if you want to purchase one.
!
6.1.2 Saildrive
Your e33 is equipped with a ZF SD-10 saildrive. The
saildrive has many advantages over a traditional shaft
driven boat. It is quieter with less vibration, there is no
dripping water entering the bilge as required with a tra-
ditional stuffing box, and it offers higher efficiency due to
the foil shaped sections of the driveleg and lack of any
shaft angle.
When your boat is under sail with the engine shut
down, the saildrive must either be in neutral, allowing
the propeller to spin, or reverse, locking it in place.
Putting the saildrive into forward gear while under
sail can damage the unit.
It is extremely important to regularly check the sacrifi-
cial zinc anode attached to your saildrive. The anode
provides protection against galvanic corrosion for your
saildrive.
Refer to the owner's manual provided by ZF for a com-
plete list of regular maintenence items and schedules for
your saildrive.
6.2 Steering Components
Keep clear of moving steering parts at all times. Pro-
6.2.1 Steering System
6.2
CAU TION
!
DA N G E R
!
tect moving parts from access during normal use!
!
!