User Manual

12
EN
Post-Flight Inspection and Maintenance Checklist
Dri Calibration
Ball Links
Make sure the plastic ball link holds the control ball, but is not tight (binding) on the ball. When a link is
too loose on the ball, it can separate from the ball during flight and cause a crash. Replace worn ball links
before they fail.
Cleaning
Make sure the battery is not connected before cleaning. Remove dust and debris with a soft brush or a dry,
lint-free cloth.
Bearings Replace bearings when they become notchy (sticky in places when turning) or draggy.
Wiring Make sure the wiring does not contact moving parts. Replace damaged wiring and loose connectors.
Fasteners
Make sure there are no loose screws, other fasteners or connectors. Do not over-tighten metal screws in
plastic parts. Tighten screws so the parts are mated together, then turn the screw only 1/8th of a turn more.
Rotors
Make sure there is no damage to rotor blades and other parts which move at high speed. Damage to these
parts includes cracks, burrs, chips or scratches. Replace damaged parts before flying. Verify both main rotor
blades have the correct and equal tension in the blade grips. When the helicopter is held up sideways, the
main blades should support their own weight. When the helicopter is shaken lightly, the blades should fall.
Tail
Inspect the tail rotor for damage and replace if necessary. Inspect the tail boom for any damage and
replace if necessary.
Mechanics
Inspect the main frame and landing gear for damage and replace if necessary. Check the mainshaft for
vertical play and adjust the locking collar if necessary. Verify that the main gear mesh is correct and that no
tight spots exist in the 360 degree rotation. Inspect all wires for damage and replace as necessary.
Troubleshooting Guide
Problem Possible Cause Solution
Helicopter is bound to a
Spektrum DXe but will not
respond to control input
The transmitter is in 9-channel
mode
Using the appropriate DXe programming cable and PC or
mobile app, either change the transmitter to 7-channel
mode or download the Blade 120 S2 model setup file to
your transmitter from www.spektrumrc.com
Helicopter will not respond
to throttle
Throttle too high and/or throttle trim
is too high
Disconnect the flight battery, place the throttle stick in the
lowest position and lower the throttle trim a few clicks.
Connect the flight battery and allow the model to initialize
Helicopter moved during
initialization
Disconnect the flight battery and re-initialize the helicopter
while keeping the helicopter from moving
The helicopter has been calibrated in the factory before
shipment, but it is possible that a crash will cause
mechanical distortion of the frame, resulting in a slight
drift in Stability mode. In this situation, please follow the
calibration procedure.
Before beginning the calibration procedure, fully charge the
flight battery and ensure the helicopter and transmitter are
bound properly, per the binding instructions.
To Calibrate the Blade 120 S2:
1. After initialization, move the transmitter sticks to the
bottom, outside corners, as shown in the illustration.
When the red
and blue LEDs on
the main flight
control board
flash slowly,
calibration mode
is active.
2. Release the sticks.
3. Slowly advance the throttle to bring the helicopter into
a low hover. The red and blue LEDs flash rapidly to
indicate the calibration process has begun. Hold the
hover for approximately 15 seconds, using as little
control input as possible to keep the helicopter steady.
4. Land the helicopter by slowly lowering the throttle.
5. After landing, press the bind/panic button to complete
the calibration process. The LED will glow solid, with
the color dependent on which flight mode is active.