S9251 usage precautions – Futaba GY601 User Manual

Page 7

Advertising
background image

7

F

OR

S

AFETY

Always perform proper maintenance for ultimate performance.
The rigidity of the fuselage tail has a large effect on gyro performance.

Make the fuselage vibration as small as possible.
Fuselage vibration has an adverse affect on gyro operation.

Since a higher gain than usual can be used then the tail rotor is more
effective, the load on the tail is also greater.

S9251 Usage Precautions

Current Drain:

The S9251 is designed to be used with the GY601 gyro only, especially to
operate at high speed. Therefore, the servo starts, a correspondingly large
current flows and the current drain is, therefore, large. Constantly pay
attention to the remaining capacity of the Nicd battery and decide the
number of safe flights. Always pay attention to the following points:

•Always use an Nicd battery. A dry cell battery will not display the

spspecified performance.

•When using the S9251 in a system with a battery fail safe function,

the cut-off voltage is set to a high value. Shortening of the flight time
due to this must be included in calculation.

•Install the servo so that it does not get caught on the push rod or

does not loosen even when operated over its full travel. If unreason-
able force is applied, the current drain will increase tremendously and
shorten the life of the servo and accelerate battery consumption.

Do not use the S9251 with applications other than the GY601 gyro.
The S9251 is designed to be used with the GY601 only, and will not operate
in other applications. Trouble may also occur.

Immediately after flight, do not touch the S9251 case.
The heat sink section of the case is extremely hot, and may cause burns.

When mounting in the fuselage, install the S9251 so that it does not
touch the servo case and metal parts of the helicopter frame.
The middle case has an aluminum heat sink construction, and will generate a
large amount of noise if touched. In this case, it will become impossible to
receive and is extremely dangerous.

Advertising