JR Venture CP, Assembly Instructions Manual

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3-3
CCPM SERVO ARM PREPARATION AND INSTALLATION
25
2x10 mm Flat Head Screw (3)
Steel Joint Ball (3)
2 mm Hex Nut (3)
It will be necessary to prepare three servo arms as shown in the diagram below. Prior to
assembling the servo arms, the servos should be centered as indicated below, and the servo arms
test fitted to the servo to insure that the arms will attach to the servo as indicated. Since the JR
servo arm spline uses an odd number of teeth, it is sometimes possible to rotate the servo arm
180° to achieve a more correct positioning.
Once the best direction for the servo arm has been decided, mark the servo arm with the servo
it is to be connected to (F, R, or L), as well as the side of the servo arm that needs to be removed.
It is very important that a heavy-duty type servo arm be used with the control ball location
placed at exactly 20 mm as shown. For JR radio users, we recommend the JRPA215 Heavy-Duty
Servo Arms included for this use. If a control ball position other than the specified 20 mm is used,
this will create an adverse affect as to the travel of the swashplate, as well as unwanted control
differential and interaction.
Prior to attaching the servo arm to the servo, it will be necessary to first turn on the radio
system to center each of the three CCPM servos. It is important that the radio’s collective pitch
stick be set at the center position. If your radio is equipped with a hover pitch knob, please check
to make sure that this knob is also in the center position at this time.
Connect the three servo arms to the three CCPM servos as shown. It is important that the
servo arms be positioned parallel to the servos as shown. If the servo arm is not parallel as
shown, minor centering adjustments can be made using the radio’s Sub-Trim function. Please
refer to Section 3-4 for more information.
Use Blue Threadlock
Steel Joint Ball
2 mm Hex Nut
Front Servo
Left Servo
Right Servo
Servo Arm
Must Be Parallel
to Servo
2x10 mm Flat Head Screw
Remove this section.
JRPA215 Heavy-Duty Servo Arm
(included in kit)
20 mm
Use Blue Threadlock