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The silencer nuts and screws loosen due to the heat and vibration created by the flight, tighten them
again after the first flight following the instruction of 9.(2) silencer installation.
(2)
Tighten the engine mounting screws
Tighten the engine mounting screws following the instruction 9. (1) Engine installation
(3)
Check each part of aircraft again
The parts of aircraft would loosen due to the heat or vibration created by the engine during flight,
check them again to make sure every part has been tighten following the aircraft instruction.
22. OPERATION LOG
Inspection and maintenance of the engine is to be performed periodically based on operating hours.
So, it is necessary for you to write down operating log: date, place, starting time and ending time, each
operating time, total operating time, remarks.
23. PERIODICAL INSPECTION AND MAINTENANCE
（
Refer to the maintenance manual
）
(1) Inspection after 25-hour operation
・
Propeller
・
Fuel tubes
・
Fuel filter
・
Plug cap & high tension cord
・
Spark plug
・
Throttle linkage
・
Throttle servo
・
Various fixing screws
・
Various harnesses
(2) Inspection after 50-hour operation
（
Refer to the maintenance manual
）
Maintain the items below in addition to the inspection after 25-hour operation.
・
Remove carbon in a combustion chamber
・
Adjust the tension of the generator pulley belt
・
Inspect Regulator Rectifier
・
Inspect the generator
(3) Inspection after 100-hour operation
（
Refer to the maintenance manual
）
Follow the GT120THU maintenance manual to inspect the items below in addition to the inspection after 50-
hour operation.
・
Every spare part of the engine
・
Replace the fuel filter
・
Replace the throttle servo
・
Replace the fuel tube in the tank
24. AFTER-SALES SERVICE
For after sale service of the engine unit, contact us directly.
Summary of Contents for GT120THU
Page 6: ...5 18 Fig 2 Fig 3...
Page 15: ...14 18 25 EXPLODED VIEW FIG 8...
