Sub-Trim
TRVL ADJ. – TRAVEL ADJUST
A-20
A-21
Use Sub-Trims for minor adjustments to servo linkages,
not for major trim adjustments to the aircraft. Using
excessive Sub-Trim percentages can cause a loss of
available servo travel where the servo reaches its travel
limit and stops moving before the control sticks are fully
deflected. For more information on Sub-Trims and linkage
setups, refer to the Sub-Trim Usage and Mechanical
Advantage article in the Glossary.
Use Sub-Trims to fine-tune the alignment of servo arms.
Install servo arms on the servos so that the arms are at
90˚ or perpendicular to the servo case/linkage. Rotate,
swap and reinstall the arms or try different arms if
necessary to get them as close to 90˚ as possible. It is not
unusual for the arms to be off just a little bit. Now use the
Sub-Trim function to fine-tune the servo arms that are not
quite at 90˚ to the linkage/servo case.
1. Highlight and select
Sub-Trim
in the
FUNC.LIST
to
obtain the Sub-Trim Display.
2. Highlight and select the channels where the servo arms
are not quite at 90˚ to the servo cases. Once a channel
is selected, rotate the
Selector
until the servo arm is
at 90˚ to the servo case.
Use Travel Adjust to calibrate how far a servo travels in each
direction. After installing the linkages and attaching to the
servos, adjust the amount of servo travel in each direction.
For more information on Servo Travel and Mechanical
Advantage, refer to the Sub-Trim Usage and Mechanical
Advantage article in the Glossary.
1. Highlight and select
TRVL ADJ.
in the
FUNC.LIST
to obtain the Travel Adjust display.
2. Use the
Selector
to highlight and select each channel
and adjust the travel in each direction by rotating the
Selector
. The direction of travel is changed by moving
the stick/switch/lever back and forth.
Summary of Contents for X9503 2.4
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