6
2. Example of Projectile Trajectory (when launched horizontally):
Troubleshooting
Note this is a factory-adjusted product that should work successfully without any adjustment on site. Nevertheless, in case
the projectile rarely hits the free-falling object, please carefully read the precautions again and go through the below
adjustment procedure as needed.
Do not disassemble the product.
1. How to adjust the launching angle in horizontal direction:
1. Find Metallic Ring-shaped Plumb (MRP) connected with a magnet via a kite
string in the product package.
2. Stick the magnet of MRP to the front of BRU to check the launching angle of
the barrel in horizontal direction.
3.
Launch a projectile from the ball launcher (without releasing the free-falling
ball) and check if the projectile hits the string of MRP.
4. In case the projectile rarely hits the string, determine on which side of
the string it travels.
5. Slightly (not fully) loosen the screw with a built-in knob further from the
trigger/stopper button above the barrel. Turn both of the knurled screws
along the side of the lower boom clockwise or counterclockwise.
For example, when adjusting the launching angle slightly to the left, [1]
loosen (unlock) the screw knob further from the trigger/stopper button, [2]
Screw
with built in
knob
Knurled screw
(Left)
Knurled screw
(Right)
Fig. 10
Fig. 11
