MAINTENANCE MANUAL ASTIR CS
Rev. 9 28. Nov. 2005
5
Maintenance
The greatest care should be taken in maintaining the fiber glass surface of the glider.
Luke warm water should be used to wash off dust, grease, dead flies and other dirty
marks. More resistant dirt should be removed by using a mild cleaning agent. Only
special silicon-free preparations should be used in maintaining the painted surfaces.
Cracks should be carefully filled.
Although very resistant against moisture, the glider should be protected as much as
possible against rain and dampness. Water that has penetrated, should be dealt with
by storing the glider in a dry place, frequently turning over the dismantled parts.
The most effective way to clean the canopy is to use a special perspex cleaner, but if
necessary, lukewarm water can be used. A soft, clean cloth or chamois-leather should
be employed to wipe the canopy down. Never rub perspex with anything dry.
The safety harness should be regularly checked for mildew and general wear and tear.
The metal parts of the harness should be frequently checked for rust.
Because of its position in the wheel cavity the tow-hook is susceptible to contamination
from dirt. Therefore it must be inspected frequently for damage, also regularly clean and
b grease. When the seat-well is removed the hook can easily be taken out. Remove the
connecting wire from the lever and take out two retaining screws. For reconditioning the
tow hook should be sent with the record card to the tow hook manufacturer, Tost.
The main wheel tire pressure should be kept at 2,5 atmospheres (36 psi).
A tail wheel can also be installed instead of the skid
The wheel brake is of the drum type. If required the point at which the brake begins to
drag can be adjusted. The adjustment is carried out by moving the Bowden cable at the
drum end.
When the main wheel is removed for the purpose of cleaning, greasing or changing
the tire, the Bowden cable should be disconnected from the brake-lever. Screw the M 6
threaded special tool onto one side of the axle and take out the screws and the spindle.
Remove the screws that hold the brake-lever in place. Take the wheel out by pulling it
downwards. Clean all the parts and grease before re-assembly.
Before assembling the glider the pins and sockets at the joints between wings and
fuselage, and tailplane and fuselage, should be cleaned and greased.
If repairs are carried out on the glider which are more extensive than normal
maintenance work, the manufacturers should be contacted.
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