
MAINTENANCE
AFTER THE FIRST HOUR OF RUNNING, CHECK THE BELT TENSIONING AND IN CASE
RE-TENSIONING IT.
AFTER THE FIRST 2 HOURS, TIGHTEN HEAD NUTS (IN CROSS ORDER) WITH A TORQUE WRENCH
AT 2.5 Kg.m (25Nm).
AFTER THE FIRST 3 HOURS OF ENGINE RUNNING MAKE A NEW BELT CHECK UP AND IN CASE
RETENSIONING IT AT 350 HRZ
- Every 20 hours:
Check the condition and gap (0.7 mm) of the spark plug
Clean the air-filter, the carburettor filter placed at the end of the fuel pipe and the filter of the
fuel tank
Check the torque of every bolt
Check the tension and condition of the reduction belt
Check fuel lines and wiring
Check that the cord of the starter has no abrasions
- Every 50 hours
Same controls of the 20 hours and furthermore:
Check the torque of the engine’s crankcase nuts
Change spark plugs
Change the petals of the reed valve
Check the reduction belt and the play of pulley bearings, change them in case of need
Check the conditions of the starter gears (version with electric start)
Once a year (independently from flight hours) change the diaphragm of the carburettor.
N.B. It is advisable to keep records of all maintenance in a log book for the engine.
It is also advisable to install an instrument (CHT) to control the head temperature at sight.