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INSTALLATION, OPERATING, MAINTENANCE—JCV 360
JCV MOTOR s.r.o. , Vikýřovice 562, 788 13, Šumperk, Czech Republic—Europe, www.vernermotor.com, [email protected]
Air filter
The air filters should be cleaned in clean solvent periodically. The recommended interval for
cleaning the filters in normal conditions is every 25 hours. If the aircraft is operated in
exceptionally dusty conditions They should be cleaned more frequently. This is especially
true if the aircraft is used for frequent ”touch-and-go” operations in which case weekly clea-
ning of the filters is not out of reason. The pulling torque 3 Nm maximum is used when tigh-
tening filter clamps; stronger tightening could cut rubber filter cups.
Fuel filter
The fuel filter should be replaced at 25 hour intervals in situations when no pre-filtered fuel
is available (e.g. the fuel is loaded from canisters) or at 50 hour intervals if the fuel is always
loaded from a properly maintained and approved aircraft fuel tankers or pump.
NOTE:
THE PRODUCER RECOMMENDS USING ONLY PAPER MESH FILTERS.
Ignition timing
The checking and adjustment of the ignition timing is illustrated in the Appendix. The
adjustment is performed with stroboscope lamp in the way that we mark TDC on the starting
disc against fixed point on the engine visible during engine run. Set the speed on 3000 RPM
after engine start and read the ignition advance value on stroboscope lamp. This value
should be within the range of 25 - 27°.
Spark plugs
The spark plugs should be cleaned in degreasing fluid, using only a stiff plastic brush, and
They should NOT be cleaned by means of blasting or sand blasting or cleaned with a steel
wire brush.
NOTE:
NEVER REMOVE THE PLUGS FROM A HOT ENGINE.
Lubricate the threads of the plug with graphite grease before reinstalling them in the cold
engine. Use only spark plugs recommended by a producer; they are checked out in operati-
on tests. For cold and damp environment, it is recommended to use conventional spark
plugs with earth electrodes NGK CRBE, NGK 9 EK or Champion RG 94 C, RG 92 DC of hotter
values. Engine starting will improve even after longer down time.
