Futaba 3PRKA 2.4GHz - Manual (Page 15)

16 3PRKA Functions
3PRKA-2.4G Functions
Steering Trim
Throttle neutral adjustments can be made
moving the throttle trim to the left or right.
Racers Tip
When using an electronic speed control, set the throttle
trim to neutral and make adjustments to the speed
control. On a gas powered model, set the trim to
neutral and adjust the linkage to the point where the
carburetor is fully closed in accordance with the engine
instruction manual.
Trim Operation and Travel
Trim adjustments will affect the overall servo travel.
Check the brake side (backward) movement when
changes are made.
When trim movement is extreme
If you use most of the trim movement to get the servo
to the neutral position , recenter the servo horn closer
to the neutral position and inspect your throttle linkage.
Throttle Trim
Steering neutral adjustments can be made by
moving the Steering trim knob to the left or right.
Racers Tip
When you install a servo, always check to be sure the
servo is at its neutral position. Adjust the servo horn
hole position and linkage so both are parallel. When a
servo saver is used, place it as close to center position as
possible. Be sure the steering trim on the transmitter is at
the neutral position.
Trim Operation And Maximum Travel
Changing the trim can affect the overall settings. When
adjustments are made with the trims, recheck your
installation for maximum travel. (Steering D/R).
When Trim usage is extreme
If it takes most of your trim movement to get a servo
to the neutral position, reposition the servo horn or
servo saver on the servo and inspect your linkage
installation.
(Drum Type)
(Slide Type)
Carburetor Fully Closed
POWER
Steering Trim
90
90
Parallel
Servo Saver
Direct Servo Saver Horn
POWER
Throttle Trim