3.2 Service Intervals
3.2.1 Daily Inspections
Before operating the engine, a thorough daily inspection should be carried out. Observe the
following points:
1.
Air filter - check condition and installation
2.
Starter - check condition and installation
3.
Ignition system - check condition, fastening, and connections
4.
Fan housing - check condition and installation
5.
Fan - check condition and fastening
6.
Fan belt - check condition and belt tension
7.
Cowling - check overall condition and the fasteners
8.
Crank case and cylinders - check for leaks overall condition of installation
9.
Spark plug caps - check condition and the connections
3.2.2 Periodic Inspections
Inspection interval
25 h
50 h
100 h
500 h
Cooling
Airway: check for free flow and freedom from pollutants X
X
X
Baffles: check for damage and cracks
X
X
X
Carburetor
Air filter: clean
X
X
X
Carburetor adjustments: check
X
X
X
Carburetor: clean
X
X
X
Fuel system
Fuel filter: clean
X
X
X
Fuel lines and connections: check
X
X
X
Impulse line [
to the membrane pump
]: check
X
X
X
Spark plugs
Clean spark plugs
X
X
X
Check gap of electrodes
X
X
X
Exhaust system
Check for damage and tight fit
X
X
X
Check exhaust pipe for residue
X
3.3 Replacement Parts
The parts listed in Table 3.3-1 should definitely be replaced after the specified number of
hours of operation. If signs of excessive wear appear before then, that particular part should
be replaced at that time.