INSTALL ROTARY-WING HEAD
Attach two rope guidelines (15) to rotary-wing
head (16). Attach hoist (17) to lifting device (T30)
Head weighs 700 pounds (1,750
pounds with blades attached) and
can injure personnel if it drops. Head
must be supported by hoist and
moved carefully to prevent injury.
If rotor blades are installed, use
special care to prevent blades from
uncontrolled swinging. Station
personnel at tiedown lines of all
blades. Attempting to install head
without securing blades can result in
injury to personnel and damage to
Lift and lower head slowly and
carefully to prevent damage to splines,
thread, and surfaces.
Grease on shaft splines will be pushed
down by head onto seating surfaces.
Lift head (16). Use hoist (17). Clean splines
(18). Use cloth (E120) damp with solvent (E162).
Wipe dry. Use clean cloth (E120). Reach under
head and apply thick coat of grease (E190)
evenly to splines (18). Use a 1 inch brush. Make
sure lower surface of head is free of grease.
Wear gloves (E186).