Regular maintenance is required to keep the KDS AGILE 7.2 helicopter in optimal and safe flying condition. The model
requires precise configuration of the components and settings to be kept by the owner. Maintain regular maintenance on
the
model
to
avoid
accidents
or
loss
,
and
optimum
performance
.
MAIN ROTOR CHECKLIST
1.Main Rotor Housing: when the main rotor housing is worn or faulty, there will be obvious vibration and poor flight
control. Check the main rotor, main shaft, and feathering shaft for wear or deformity. Replace parts as necessary to
eliminate imbalance.
2
.
O-Rings:The O-Rings will lose their elasticity over time. This will cause excess play on rotor and cause instability. Replace
them as needed.
3.Main Rotor Holder: When the helicopter dose not fly or reacts sluggishly, even after checking for proper setting of pitch
and
throttle
,
check
the
following
items: Plastic parts, Bearings, Ball bearings, Rotor Blades.
Check for excess play or broken parts, or binding or restricted movement. lt is important to check for main rotor balance
before each
flight
.
Operating
the
model
when
out
of
balance
will
cause
excessive wear and premature failure of parts,
possibly resulting in a dangerous situation.
4.Control Arm Assembly: Check regularly for cracked, worn, bent or binding control arms and pushrods. Smooth morement
of control arms and linkages is required for stable, vibration free flight.
5.Swashplate:Check for excess slop in the main ball where the main shaft rides on, and slop or looseness between the
plastic and metal surfaces. Swashplate wear will result in poor stability and lack of control during flight. Replace them as
necessary.
FUSELAGE/CHASSIS
1.Main Shaft Bearing: Normal replacement interval for proper operation is between 60-100 flights. lf flying 3D or extreme
aerobatics often, inspect the bearing more frequently and shorten the interval as necessary.
2.One-way Bearing: One-way bearings have longer lifetimes. Failure is not common. To keep the one-way bearing in good
operation, remove it to clean and lubricate after every 50 flights. lf the main drive gear is loose, you should replace the
one-way bearing.
3.Drive Belt: Agile and KDS uses only top quality, stretch-proof belts. lt is however, impossible to prevent the belt from
stretching or wearing out. Check belt tension regularly, and check for the wear on the teeth. Replace it as necessary.
LINKAGE RODS
＆
CONNECTING PARTS
During assembly, take special care to keep the connecting parts in smooth operation, and avoid excess play or binding.
Failure to do so will result in poor flight stability. The linkage rods and ends will break and wear due to normal usage,
crashing, and poor maintenance and environment. Check for wear and proper operation regularly,replace them as needed.
TAIL ROTOR SYSTEM
1.Tail Rotor Control Set: Check the tail rotor bearing regularly. lf there is excess play or gaps, replace it immediately. Avoid
any binding or improper contact on the tail components and bearings as this will cause excess wear and heat, potentially
melting or deforming the tail system.
2.Tail Unit Assembly: Avoid flying in tall grass or weeds. lf grass or weed becomes lodged in the tail rotor unit, it will
interfere with the operation, and cause the helicopter to lose control. Always check for foreign objects in the tail and
clean them off immediately. Avoid
using
lubricants
on
the
exposed
surfaces
of
the
model
as
it
will
attract and
collect
dirt
and debris, and cause failure.
3.Tail Rotor Housing: Disassemble tail totor housing for cleaning and maintenance after every 50 flights. lf the tail does not
operate smoothly or shows any signs of stress or wear, please replace immediately.
4.Tail Rotor: Check the tail rotor blades regularly for damage, especitlly if the helicopter ever strikes the ground while
flying, or after hard landings. Damaged tail rotor blades can induce vibration.
34.REGULAR MAINTENANCE
Agile Helicopter is a Trademark of Flight Research Rc Europe , Proudly made by KDS Model Shenzhen
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