Jefftron Leviathan Manuale utente
INSTALLATION MANUAL
FOR GEARBOX V2
1
Leviathan - V2 parameters
It is processor controlled mosfet with Bluetooth communication. Device is fully integra-
ted inside the gearbox version 2 instead of the original trigger contacts, compatible with
Tokyo Marui standard. Completely made wires with 30A mini fuse and deanT connector. It
adds new shooting modes, controls RoF, pre-cocking, active braking, low battery indica-
tion, statistics... controls via app in the smartphone. Usable for battery with max. 17 volts.
Insertion procedure of Leviathan-V2 into the gearbox
1. Remove and open the gearbox according to the normal gun disassembly procedure.
2. Take out all the internals from the gearbox and clean the vaseline, oils after them. Check
the gearbox for edges. Grind for smooth surface to prevent Leviathan board damage.
Package contents
- Leviathan - V2 drop-in module with wiring
- Screw with washer for securing device in
the gearbox
- CNC trigger with hair trigger feature
- Screw for the trigger zero path adjustment
- Foam to keep device in place
- Installation manual
Safety warning
- Installation of this device into the gearbox requires advanced technician skills!
- Please read these informations before installing your device to prevent any damage.
- Short circuit or incorrectly connected battery will cause immediate damage to the de-
vice which is not covered by the warranty. It can lead to re or even battery explosion.
- Disconnect battery, when you aren‘t using the gun! Otherwise you will fully discharge
the battery. Because the device drains small amount of current from it all the time.
- Don‘t connect battery when gun pointing towards you, another person or an animal.
- Don‘t modify, repair, put into any kind of liquids or thermal shock the Leviathan - V2.
2
6. Make sure the screw doesn‘t stick out
outside of the gearbox. If yes grind it.
7. In the ICS gearbox grind edge in red
circle to not interfere with contacts.
5. Insert Leviathan-V2 in the place of
the original trigger contacts. Check if
it is laid at on the gearbox shell and
transparent foil covers socket contacts.
Adjust the position of the Leviathan to
same distance from bearing (arrows).
Use screw with washer from package
and screw device to the gearbox (whi-
te circle). Make sure the green areas are
not covered by board or wires.
4. If your gearbox has high screw
mounting, cut it o to at surface.
3. Take out these parts out of the gear-
box (not used with Leviathan - V2).
3
13. If you want shorter trigger path,
insert screw into the trigger. After tes-
ting secure its position by super glue.
12. Use trigger from package.
If you want use your trigger, grind it by
the red line on the picture.
8. Check other side of gearbox, if there
aren‘t any short circuits with gearbox.
11. Wires under motor have to stick on
the wall. Use super glue to x position.
9. Stick the foam to the right gearbox
shell (included in the package).
10. Place wires from the Leviathan-V2
in order: blue, -battery, -motor.
4
19. Secure the gearbox by 3 screws for
microswitch testing.
18. Check if the top board ts in the
gearbox without any problems.
14. Insert into the gearbox sector gear
and trigger from Leviathan package.
(avoid micro switches break).
15. Make sure the gear does not touch
micro switch body. Spin the gear slowly
to check right Cycle detection in the app
16. Put together the gearbox shell.
Check if it t together perfectly.
17. Grind pins in red circles to t wires
into the gearbox.
5
21. Put the gearbox into lower receiver,
secure its position by pins and screws.
20. Insert selector plate, move it from
front to back (avoid micro switch break)
Testing micro switches
1. Install„Leviathan by JeTron“app from iOS store or Google play into your smartphone.
You can also use link https://www.jetron.net/application
2. Connect battery to Leviathan - V2 and pair smartphone with the password„1234“.
23. Connect the black wire rst. Keep
in mind right motor polarity.
22. Black wire bends back at the bottom
and lead both wires back in the grip.
6
4. Set 2x new password and push SAVE.
Don‘t tell new password to anybody!
If you forgot your password, restore it
by holding RESET button - see pic. 7.
Battery has to be connected.
3. Change password to your 4 digit.
5. Check if every micro switch respon-
ding. Grey color is OFF, blue is ON.
There is slight delay in change micro
switch status because of BT commu-
nication. Micro switches are displayed
on picture 6 and 7 at page 7. With se-
lector on auto are semi and auto de-
tection ON (as on this picture).
7
7. Yellow reset button hold for 2s, pass-
word is reset to 1234 after vibration
from motor (settings is reset too).
6. Micro switches positions in red and
green circles. SAFE position is when
these micro switches are OFF.
Microswitch troubleshooting
10. If cycle is not detected move Leviathan-V2
slightly higher to be micro switch closer to sector
gear. If trigger doesn‘t press micro switch move
Leviathan-V2 front slightly lower.
When everything works right insert rest parts
into the gearbox and assembles the gun.
8. If is semi on safe, auto on semi move
Leviathan-V2 to the left or grind se-
lector plate on red line. Otherwise add
metal plate or dierent material on it.
9. Demonstration right SEMI and AUTO
selector plate position. On pic. 8. is SAFE
8
- Change name visible on the Bluetooth list, max.
12 characters. After you save the name, Leviathan
- V2 will be disconnected from phone.
- Info about application and rmware version.
Bootloader and Hardware version is constant.
- If you have any questions or problems, please
contact us at email support@jetron.cz.
- Update xes bugs and adds new features. It
takes about 1minute to complete. It will end with
successful message and short vibration.
First time shooting
1. Connect battery, after 1s you will feel a short vibration. This means that the power-up
self-test is complete and OK.
2. Put the gun into SAFE - nothing happen when is trigger pulled.
3. Put the gun into SEMI and it will re once.
4. Put the gun into AUTO and pull the trigger shortly. Gun should re a burst of 3 rounds.
If you held down the trigger longer the gun will go to auto re.
5. If everything works as described, congratulations for the correct installation the Levi-
athan-V2. If not, check what is written in the error log and the 12-14 pages in this manual
6. Pair with the leviathan-V2 and update rm-
ware to the newest version. Your smartphone has
to be connected to the internet.
Have your application and rmware updated!
WARNING - Disconnect battery, when you don’t
use the gun! Otherwise it will lead to destroy
battery or its re. Because Leviathan - V2 drains
small amount of current from it all the time.
9
Change parameters page 1/2
Orange stripe = not paired, green stripe = paired
Paired = loads parameters from Leviathan - V2.
Change parameter -> shows „writting...„ in the
green stripe. Text dissapear -> parameter is saved
Fire modes with Selector on safe/semi/auto:
- SAFE: no responding on the trigger pull.
- Semi: it res single shot per trigger pull.
- Semi/BurstX: short trigger pull res single shot,
long trigger pull res burst.
- Double trigger: re semi when trigger is pulled
and semi again when it is released in less than 3s.
- BurstX: gun shoot burst per trigger pull.
- BurstX+BurstY: short trigger pull re burstX,
long trigger pull re burstX plus burstY bullets.
- BurstX/Full: short trigger press res burstX, long
trigger press makes auto re.
- Full: gun makes auto re until trigger is released.
Burst functions:
It enables you to shoot a set number of BBs on one
trigger pull. It will always complete the burst. Eve-
ry selector has its own burst settings.
Rate of re:
It is useful for solving problems with too high gun
RoF. This function makes breaks between shots to
reduce RoF. It gives you fast trigger response even
with very low rate of re, just like in a real gun.
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