Windshield And Windows; Engine And Engine Cowling; Upholstery And Interior; Propeller - FK-Lightplanes FK 9 Mk IV Maintenance Manual

Maintenance Manual FK 9
Revision 2
3.2.6.

Windshield and Windows

The windshield and windows can be cleaned by washing it with lukewarm water and car or mild laundry detergents. Use
a clean, soft cloth to soak the all surfaces. After a short soaking time to loosen any dried-on dirt, rinse well with fresh
water and wipe clean with chamois leather.
 Note:
The polycarbonate (Lexa, Makrolon) windshield and windows cannot be polished. Only the optional Plexiglas
front canopy can be polished with e.g. Acrylglas / PLEXIGLAS® Polishing & Repair Paste.
█ CAUTION:
Never clean dry windshield and windows.
Avoid any contact between Lexan or Plexiglas with aggressive fluids such as alcohol, fuel, brake cleaner or
thinner.
Do not wipe the canopy in circular movements.
 Note:
Cover the canopy with a cover sheet especially the polycarbonate (Lexa, Makrolon).
3.2.7.

Engine and Engine Cowling

Engine:
Refer to the respective engine manual
Engine Cowling:
Wet the inside of the cowling, use a soft brush or a soft sponge and a soft cleaning agents to soak. After a short reaction
time to loosen any dried-on dirt, rinse well with fresh water and rub down.
 Note:
Leakages (e.g. oil circuits) will be easier to detect if the inside of the cowling is clean.
3.2.8.

Upholstery and Interior

Remove the floor mats. Vacuum the seats, and the carpet by using the proper attachment. Use a soft brush attachment
to vacuum the dashboard. Use the same attachment vacuuming the seats. Upholstery covers and seat cushions can
also be removed from the cockpit.
A number of upholstery cleaning agents available. Use them according to the instructions.
If you don't have an upholstery cleaner, a mild laundry detergent will work as well. Mix some detergent with lukewarm
water and wipe the upholstery by using a cloth. Work harder on dirty areas. When finished, dry out well with a clean, soft
dry cloth. You can clean the carpet the same way you cleaned the seats and upholstery.
█ CAUTION:
Be careful not to damage the Nextel painting.
Leather seats are susceptible to damage, be careful not to scratch them with the vacuum hose.
Before treatment with upholstery agents test on an inconspicuous section.
Be careful with water inside the cockpit - if the water gets into electrical components it may cause problems.
3.2.9.

Propeller

refer to the respective propeller manual
▲
WARNING:
Ensure that the keys are removed and main switches and ignition switch are turned OFF during any work on the
engine and propeller.
Wet the propeller blades and the hub, use a soft brush or a soft sponge and a soft cleaning agents to soak the blades.
After a short reaction time to loosen any dried-on dirt, rinse well with fresh water and rub down

3.2.10. Wheels

Wet the tires, use a soft brush or a soft sponge and a soft cleaning agents to soak the tires. After a short reaction time to
loosen any dried-on dirt, rinse well with fresh water and rub down.
Section 3 Structures
document code: des.003
B&F Technik Vertriebs GmbH
page 2