Regular Maintenance; Linkage Rods＆Connecting Parts; Fuselage/Chassis; Tail Rotor System - KDS Chase 360 Instruction Manual

REGULAR MAINTENANCE

Regular maintenance is required to keep the KDS AGILE 5.5 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.
Page. 33