7
INSTALLATION DETAILS
INSTALLATION OF DRIVE UNIT
The assembly is bolted through the transom
which should be prepared as shown in
Figs. 1,
2,3,4,5.. It will also be noted that suitable re-
inforcing must be introduced to the transom. The
drive unit is arranged to suit a standard transom
angle of 12° although it is possible to accommodate
other angles by making up a suitable adaptor block.
Generally speaking, it is recommended that the
cavitation plate should be located within
0-'%4
inches
(0 to 19 mm) below the keel
(see Fig.
2).
On the 130 Z-DRIVE the out-drive unit should be
installed initially with the locating tilt catch rod in the
centre hole and the propeller shaft horizontal. A
small angular adjustment of the propeller shaft with
the rod in the other two holes is possible if it is
found necessary to alter the trim. With fast single
engine craft, where speeds over 30 mph (48 kph)
are anticipated, it may be advisable to locate the
engine and drive about
1'/4
inches (31.75 mm) off
centre towards the port side to minimise torque
reaction.
The distance between a pair of "Z-drives" will
depend on the engines and their size, in the case
of 130 "Z-drive" the minimum distance is more
critical than with the 130H because when cranking
up to the parked position (normal) the port unit
must not foul the other.
STEERING GEAR
The tiller arm is adaptable to either a wire rope
and pulley system or a proprietary push pull cable
system, with 9 ins. (228 mm) travel. The special
steering linkage does not have to be disconnected
from the drive before swivelling to the parked
position or when the unit is tilted.
REMOTE CONTROL
Remote control of both engine throttle and gear
change is by means of a "single lever" control
which is available as an optional extra with cable
lengths up to 30 feet (9.14 metres) and all
necessary fittings. For details of remote control
cable kits available refer to Accessories Section.
Page 27.
ELECTROLYTIC CORROSION
As the unit is of aluminium alloy construction,
and copper alloys are commonly used in wooden
boat construction, some trouble due to galvanic
action should be anticipated unless precautions are
taken.
It is recommended that an anti-fouling paint, as
used with aluminium hulls and specifically free from
copper, be applied to the bottom of the boat. This
can also be used on the underwater part of the
"Z-DRIVE" transom unit. Paints based on red lead
should not be used.
A zinc sacrificial block is provided on the
underside of the transom plate. The purpose of this
block is to attract electrolytic erosion which would
otherwise attack other "ZDRIVE" components. This
sacrificial block should never be painted. As it is
the normal function of the sacrificial block to erode,
it should be replaced periodically, as necessary. A
zinc ring is also fitted forward of the propeller.
A master switch should be fitted in the earthed
lead between the battery and starter motor to
isolate the engine when the boat is out of use.
Care should be taken to avoid earthing the unit to
the engine or other metal work with the mounting
bolts, controls, steering gear, etc.
When connecting radio, echo sounding
equipment, etc., check polarity of engine earth.
Содержание Z-Drive 130
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