14
c)
Now route the ESC’s servo wire into the fuselage, and temporarily
connect it to the receiver.
d)
Connect the ESC's motor wires to the motor. Operate the motor
and check the direction of rotation. NEVER DO THIS WITH A
PROPELLER INSTALLED! If you need to reverse the rotation, refer
to the instructions that came with the motor and ESC.
SAFETY ISSUE:
We strongly recommend the use of an “arming
switch” for your motor installation. With an arming switch you can
install your battery pack in the airplane and hook up the wires
without danger of the motor starting. The arming switch keeps
the electricity away from the motor until you “arm” it when you are
ready to takeoff. The most common arming switches are a simple
external plug that puts a break in the positive battery lead to the
motor, such as the Arming Switch (SIG Part# MXACC6972)
shown below. There are also arming switches built into some of
the advanced ESCs now on the market.
❑
31) The LiPo battery pack will ride in a plywood battery box on the
floor of the fuselage, just in front of the servo mount. In this
step we will install the battery box.
a)
The battery box consists of (2) plywood sides and (1) plywood
top piece, and is pre-assembled.
b)
Take one of the supplied Velcro® straps and pull the short,
"fuzzy" portion loose from the longer, "hook" strap. Glue one
end of the short fuzzy strap on to one of the box sides, as shown
in the following photo. Glue the plain side to the wood, not the
fuzzy side. Epoxy glue works best for this step.
c)
Cut the hook strap in half, and then glue one end of it to the
other box side. The hook side should be glued against the wood.
Epoxy glue works best for this step.
d)
Trial fit the assembled battery box inside the fuselage. Note that
there are slots in the plywood fuselage floor to accept the tabs
on the bottom of the battery box. After you are familiar with the
fit of the battery box, glue it permanently to the to the plywood
floor and to the front of the servo mount.
In addition to the Velcro® strap at the front holding your LiPo battery
pack inside the box, it is also a good idea to use an additional small
piece of Velcro® tape (not furnished) on both the bottom of your
battery pack and on the top surface of the plywood floor, to make sure
the battery pack will not move around during aerobatics. You can also
pad your battery with strips of foam (not furnished) to keep the battery
from sliding inside the battery box.
❑
32) Mount the cowling on the fuselage with the four M3 x 10mm
Screws provided.
a)
First test fit the cowling on the fuselage. As you pass it over the
motor, make sure all the wires are out of the way. Carefully
adjust the exact position of the cowling. Make sure you have
adequate clearance between the front of the cowl and the back
of the propeller, and that the prop shaft is centered in the hole.
Remove the cowl and tape two 1/2” by 4” strips of tag board to
each side of the fuselage.
b)
Use a 1/16" bit to drill holes in the firewall for the cowl mounting
screws, through the tag board.
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