PIK-20 E Service manual
A
The locking position can be adjusted from the short control rod in the
brake box by unscrewing the lock nuts and by screwing the rod 20—30°
at a time (both ends are right handed with different thread pitch). The
small inspection hole is for to have enough thread in the push rod.
To minimize the locking force, the right airbrake should close some 3
mm before the left one. Adjust from the quick release lock. When clo
sed there must be 3—5 mm space between the control lever and control
stop in the cockpit.
— Check the free play of the moving control surfaces to be less than the
following:
1 Elevator a) stick locked ±3 mm
b) the push rod in the fin locked ± 1 mm
2 Flaps stick and flap lever locked:
±5.0 mm from flap to flap
±2.5 mm from aileron to flap
±2.5 mm moving together both flaps up and down
— Repaint the damaged parts to protect the glassfibre construction.
— Inspect the water drain and pressure relief holes (see fig 4.1).
— Sign the annual inspection in the log book.
Note:
When the cockpit floor has been installed, the free movement of
all controls must be checked for all postilions.
4.4 After gear-up landing and after rough landing
If you make a gear-up landing, inspect the skin and ribs of the front fu
selage and clean and inspect the tow coupling.
After a rough landing inspect the main landing gear and tail wheel ca
refully. If the tail wheel is damaged, inspect also the rudder hinges.
Note: If the sailplane is damaged, the structural repair schemes are gi
ven in the PIK-20 E Repair Manual.
4.5 Balancing of control surfaces
Always when the control surfaces have been repaired or repainted, the
balancing of the control surfaces must be done.
EIRI KY -
Kisällinkatu 8
SF-15170 Lahti 17
page II-30
