Futaba GV-1 - Manual (Page 17)

ASSEMBLY & ADJUSTMENT
3
Tighten the sensor stay together with the engine
mounting flange. (Temporary assembly)
4
Select the mounting method so that the sensor
does not touch the frame, or other parts of the he-
licopter. Temporarily mount the sensor and select
the magnet mounting position.
-Install the sensor to the sensor stay using the accessory screws and wash-
ers.
-Tighten the sensor stay together with the engine using the engine mount
screw.
Cement the magnet to the cooling fan
so that the magnet is level with this side
of the cooling fan.
Magnet
Magnet mounting
(Cooling fan modification)
1
Drill a hole in the fan at the magnet mounting posi-
tion.
Make the hole about 4.1mm in diameter and 1.5 to 1.7mm deep.
2
Embed the magnet in this hole in the direction in
which an output is obtained.
Use epoxy adhesive that cures in 30 minutes or longer.
Do not use epoxies that contain metal such as JB Weld.
If the cooling fan is unbalanced and vibrates, etc., balance it by mounting
the spare magnet to the opposite side of the cooling fan in the opposite
polarity (so that it does not output a signal).