EV-97 Eurostar SL Microlight Maintenance Manual GEN/EUR/04 Issue 4
39
17. Permissible Tolerances (Play)
The following table gives the permissible movement tolerances for critical parts of the aircraft.
These values should not be exceeded in operation. The operator must also take appropriate
steps if excessive play is found on/in any parts not listed below.
System
Procedure to establish play
Procedure to remedy
play
Max.
production
play
Max.
service
play
Ailerons
control
system
Block ailerons up to the wing and
move the control stick to the left
and right
Check condition of
bearings and replace if
needed
0.08 in
2 mm
0.2 in
5 mm
Elevator
control
system
Block elevator up to the stabilizer,
pull and push the control
Check condition of
bearings and replace if
needed
0.08 in
2 mm
0.2 in
5 mm
Flaps
control
system
Set the flaps in all positions by
degrees and then, holding the
flap trailing edge near the flap
root, move the trailing edge
up/downward to determine the
play.
Check the part with the
oval hole for the control
pin in the flap root rib and
replace the worn-out pin
or the part with oval hole.
0.08 in
2 mm
0.2 in
5 mm
Trim tab
control
system
Block the tab to the elevator,
move the trim tab control lever to
determine play in control system
Check cable tension
0.08 in
2 mm
0.2 in
5 mm
Wing-
Fuselage
attachment
Move the wing tip and note play
in wing suspensions
Check wing
suspensions, replace
pins
0
0.08 in
2 mm
Tail
attachment
Move the horizontal stabilizer tip
forward-rearward
Replace bearings in
suspension points and
bearings in control
system
0
0.08 in
2 mm
Rudder
hinges
Lift the rudder
Change swivel bearing or
insert a washer under the
lower hinge pin
0.04 in
1 mm
0.08 in
2 mm
Nose
wheel
Push the rear part of the fuselage
down (use a weight) to lift the
nose-wheel, then move the wheel
forward and backwards
Remove the wheel,
remove the rim and tyre
and replace the bearings
0.04 in
1 mm
0.12 in
3 mm
Main
landing
gear
Lift the wing tip (hold the wing
under the main spar, not the
composite tip) to lift a main leg,
then move the wheel backwards
and forwards; note any play in the
bearings or leg attachment
Check the leg attachment,
wheels attachment,
replace the bearings, if
necessary
0.04 in
1 mm
0.12 in
3 mm
