Krick ro marin Neptun Building Instructions page 14

Place the drive battery 33 and the speed controller 34 in
the hull.
During the wiring procedure please keep to the instruc-
tions provided with the speed controller. The red and black
wires attached to one end of the speed controller are those
which should be connected to the drive battery. Attach an
AMP-Faston plug 35 to each wire, and push them into the
corresponding connectors on the drive battery. The use of
connectors allows you to remove the battery at any time for
charging.
The receiver 39 can be secured on the mounting plate
using double-sided adhesive tape.
The RC system can now be connected. At this point it is
possible to make final adjustments to the steering system,
and test all the working functions. Give the drive battery a
full charge before you do this.
Adjusting the steering system, testing the working
systems
Switch on the transmitter and connect the speed controller
to the battery. The rudder stick and trim lever should now
be at centre. The rudder servo will now also be at "neutral"
(centre). Screw the clevis in or out on the threaded coupler
until the steering pushrod is at right-angles to the line of
holes in the steering lever. The Kort nozzle should now be
at "neutral" (straight ahead). If not, loosen the socket-head
screw 23 and adjust the Kort nozzle.
With these adjustments completed, check the movement of
the Kort nozzle including trim travel: the Kort nozzle must
be able to deflect through the same angle on both sides of
centre, without the nozzle or the steering pushrod binding
or fouling at any point.
The throttle function should be assigned to a non-neutrali-
sing stick on the transmitter. Check the system as follows:
move the stick forward (away from you), and the propeller
should rotate to the left (anti-clockwise) when viewed from
the rear.
If it spins in the reverse direction, swap over the connec-
tions between the motor and the speed controller.
On no account swap over the wires between the speed
controller and the drive battery, as this will wreck the cont-
roller.
When you have completed the adjustment / checking pro-
cedure, disconnect the batteries and remove them from the
boat, together with all the loose receiving system compo-
nents.
If you install the RC system as shown on the plan, you will
need to add about 200 g of lead ballast. This should be
glued in place while the hull is still open; it is best located
to right and left of the stern tube support.
Final trimming can only be carried out when the model
is completely finished. The rudder system and the radio
components remaining in the hull should be covered with
14
polythene film to avoid them being damaged by excess
glue during the remainder of the building procedure.
The deck
Use cyano-acrylate ("cyano") for all glued joints between
the ABS parts and the deck, and all ABS - ABS joints.
The first step is to separate the deck 42 from the laser cut
sheet.
Sand the cut edges of the deck smooth, then trim it to fit
the hull. While the hull flange is still attached to the moul-
ding, it is easy to pick up and correct any tight areas or
minor inaccuracies in the fit. If necessary, trim back the
deck at the bow or the stern, but not along the sides. When
you are satisfied that the deck fits really accurately, remove
it from the hull.
Cut out the vacuum-moulded coaming 43 and trim it to fit
in the deck opening from the underside. When you are
satisfied, tack the two parts together by applying individual
drops of cyano at approx. 50 mm intervals, taking care to
check that the deck conforms to the camber of the coa-
ming. After takking the parts together, allow cyano to run
right round the joint on the underside of the deck.
Cut out the towing winch base 44 and sand the edges flat.
Measure off the correct length of the square-section ABS
strips 45 and 46 to fit inside the underside of the base, and
cut them to length. Glue the strip framework round the front
hatch opening using cyano, taking care to keep the strips
at right-angles to each other.
To improve the water seal an additional sealing strip frame
is now prepared and glued in the towing winch base; this
consists of parts 47 and 48: place the winch base on the
deck and invert the deck. The correct lengths of the fore-
and-aft sealing strips 47 can now be marked.
Cut the strips to length, place them inside the winch base,
and tack each one in place with two drops of cyano. Now
mark the length of the transverse strips 47.
Place the winch base on the deck again and fit the trimmed
transverse strips 48 between the fore-and-aft strips 47.
Again tack them in place with two drops of cyano each.
Remove the winch base again, and apply a thorough fillet
of glue to the completed sealing strip framework.
Cut out the warping winch base 49 and sand the underside
flat. Measure off the correct length of the square-section
ABS strips 50 and 51 to fit inside the underside of the
base, and cut the strips to length.
Glue the strip frame over the rear hatch opening using
cyano, ensuring that the strips are at right-angles to each
other.
Now that you have completed the deck to this stage, it can
be glued to the hull, starting at the bow.
Tack the extreme front end of the deck to the hull using
cyano, holding the rear end up. Lower the deck gradually
onto the hull flange, applying individual drops of cyano at
© Krick Modelltechnik, Germany, Stand 03.2018