PIK-20 E Service manual
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In hot sunshine it is recommended that the sailplane is protected with a
light coloured covering.
Prior to hangaring, water drain holes, shown in Figure 6, should be
inspected for free outlets and cleaned if necessary.
When storing the sailplane in a trailer it is important to see that there
is no water laying in the trailer. Felt on fuselage and wing holders should
be dry.
There must be ventilation holes in the trailer.
When storing the sailplane for longer periods, it is good to use silica-
gel in the trailer and tape the trailer airtight to keep the air dry. It should
also be checked that there is no water in the wing. The water bags
should be drained carefully and the sealings should be removed from
the wing rib to get the air to circulate.
All bare metal parts should be protected with grease.
4.2 Powerplant maintenance
4.2.1 General
The inspection and maintenance of the powerplant and powerplant sys
tem depend on the engine hours. Safe operation can be achieved only
by following the maintenance instructions given in this Manual. Mainte
nance periods are 25 and 50 hours (see 4.2.2: Powerplant Maintenance
and Inspection Lists).
The spark plugs must be changed twice during the 25 hours mainte
nance period. The maximum allowed spark plug life is 15 hours.
If the engine use is little, at least the 50 hours maintenance must be
done yearly.
Major overhaul period is 300 hours. This overhaul is made by the engi
ne manufacturer or by a manufacturer authorized workshop.
In connection with an engine maintenance at least the monthly check
is recommended to be done to the sailplane. The maintenance must be
done by a person who at least has sufficient experience of automobile
or two-stroke engine maintenance work.
EIRI KY
V
Kisällinkatu 8
SF-15170 Lahti 17
page 11-13
