4
6.
Assemble the gearbox only with the sector gear, Perun, and the trigger
inside. It is advised to shim the trigger (standard gear shims can be used
for this purpose), so that it can only move back and forth, not sideways.
The trigger holder should rest on the contact stopper (a little protrusion
or a screw on the gearbox), as shown on the photo:
7.
Put the gearbox in the lower receiver and insert the rear and middle
pins. While inserting the middle pin, you might need to pull and hold
the trigger, to let the middle pin go through.
8.
Connect the battery to the mosfet (with the motor still disconnected) and use the
Sensor check
feature (more details on page 12)
to check, whether all the sensors work properly. Make sure
that the selector positions are detected as shown below:
Also check the trigger and the sector gear. In case Perun does not detect trigger, sector gear, or
selector positions properly at any of these trials, please refer to solutions described on the scheme
above or below:
-
The selector must
be on “SAFE” when
the battery is being plugged in.
-
If the trigger does not seem to be working, make sure that the magnet together with its plastic
holder is on the trigger and it is placed correctly. The correct polarization of the magnet (which
end of the magnet is pointing at the board) is important.
-
If the sector gear is not being detected, check whether the wires are not obstructing the IR diode
in the bottom-left part of the mosfet. If the problem persists, you might need to try releasing the
screw that holds the electronic board, moving the board to the sides (if possible) and then
screwing it back and checking again.
9.
If everything works correctly, remove the gearbox from the lower receiver.
10.
Open the gearbox again and put the rest of the components
inside. If you are installing Perun in a gel blaster or you are
using a tracer hop-
up unit, use the soldering pads on Perun’s
electronic board
marked with “+” and “
-
“
to solder the mag
terminals
’
wires or tracer wires. Be careful not to accidentally
solder the pads together with the adjacent components!
Note, that you can leave the mechanical safety mechanism,
if you like, it is not necessary, though.
It is a matter of your
preference.
11.
Assemble the gearbox. Put the whole replica together. Watch
out for the wires, make sure that the insulation does not get
damaged during the assembly!
Tracer or mag terminals
soldering pads
