TM 55-1520-240-23-9
11-2
CLEAN FLIGHT CONTROL SYSTEM
11-2
INITIAL SETUP
Applicable Configurations:
All
Tools:
Mechanical Finger
Vacuum Cleaner
Low Pressure Air Supply
Brush
Other Tools As Required
Materials:
Cloths (E120)
Dry Cleaning Solvent (E162)
Gloves (E186)
Personnel Required:
Medium Helicopter Repairer
Inspector
Equipment Condition:
As Required
General Safety Instructions:
As Required
Dry cleaning solvent (E162) is
combustible and toxic. It can irritate
skin and cause burns. Use only with
adequate ventilation, away from open
flame. In case of contact, immediately
flush skin or eyes with water for
at least 15 minutes. Get medical
attention for eyes.
Do not wash areas with solvent
(E162). Dirt may be washed into
bearings causing component damage.
Vibration during flight can move dirt or
dust in bearings or bushings.
1.
Remove dirt from components or structure as
follows:
a.
Brush dust or dirt from large areas. Use dry
bristle brush.
b.
Remove large dirt using mechanical finger.
c.
Vacuum or blow dust or dirt from close fitting
component. Use low pressure air.
d.
Remove dust with cloth (E120) moistened
with solvent (E162). Use gloves (E186).
2.
Areas which may collect dirt or dust are as
follows:
a.
Pivot points of idlers or bellcranks.
b.
Connecting points of links or bellcranks in
upright positions.
c.
Small spaces between bellcranks.
3.
Materials which are dangerous to flight system
components:
a.
Loose nuts, bolts, rivets, lockwire, small
stones, or pieces of wood.
b.
Fluids which can wash dirt in bearings or
bushings.
c.
Fluids can wash lubricant out of bearings.
d.
Spilled hydraulic fluids collect dust or dirt.
e.
Spilled hydraulic fluid on DASH actuator can
damage motor.
f.
Dust or dirt on electrical connectors
or receptacles can cause electrical
malfunctions.
FOLLOW-ON MAINTENANCE:
As Required
END OF TASK
11-8
