MD Helicopters CSP-900RMM-2, Техническое обслуживание и ремонт

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CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 405
Revision 36
62-20-00
1). If the safety ring is not free to
move, remove and install retention
nut (3) again (go to Step (8).).
Make sure NO part of the
lockwire has an overlap or
an interference with the opening in the
center of the static mast.
(u). Safety bolts (1) together in sets of
three with lockwire (C702).
NOTE:
Deleted.
(9). Install the main rotor hub drive plate
(ref. Section 63-10-00).
(10). Connect the scissors drive link to the
main rotor hub drive ring assembly
(ref. Section 62-30-00).
(11). Connect the pitch links to the main
rotor hub pitch case assemblies (ref.
Section 62-30-00).
(12). Install the main rotor blades (ref.
Section 62-10-00).
(13). Do the Main Rotor Track and Balance
procedure (ref. Section 18-00-00).
2. Main Rotor Dampers
(Ref. Figure 402)
Consumable Materials
(Ref. CSP − SPM)
Item Nomenclature
C702 Lockwire
C211 Sealing Compound, Corrosion Inhibitive
C229 Sealant, Conductive
C418 Release Agent
A. Removal
Do not move the rotor blade tip
up more than
4.0 ft. (1.22 m)
when the rotor is not in operation. And do
not move the flexbeam up more than
1.0 in.
(2.54 cm) at the blade attach point. Dam­
age to the flexbeam can occur.
NOTE:
This task is for the removal of one damp­
er set at a time with the main rotor hub
installed on the helicopter, and is typical.
(1). Lift the main rotor blade approximately
level and put a support below it, or
remove it (ref. Section 62-10-00).
(2). Release the collective friction unit and
move the collective up until the outboard
end of the pitchcase is approximately 90
°
to the static mast (ref. Section
67-10-00).
Damper shims are free and not attached
to damper or damper cap.
Upper and lower damper must have same
quantity of shims installed.
(3). Remove the lockwire from bolts (3).
(a). Discard the lockwire.
(4). Remove bolts (3) and washers (4).
(5). Remove lower damper cap (1) and
shim(s) (5).
(6). Remove the adhesive from bolts (7).
(7). Remove the lockwire from bolts (7).
(a). Discard the lockwire.
(8). Remove bolts (7), washers (8), and
bonding jumpers (9).
(9). Remove upper damper cap (6) and
shim(s) (5).
(10). Remove sealant from cap (6) and
pitchcase (2).
NOTE:
Dampers must be installed or replaced as
a set. A set is one upper and one lower
damper of the same pitch case.
Before you remove the dampers, identify
each damper location, position, and align­
ment (e.g., blue blade, top, and an arrow
that shows inboard direction).
Damper sets must be installed at the
same location, position, and alignment as
removed.
(11). Remove nut (12), washer (13), and
upper damper (10).
(12). Remove nut (12), washer (13), and
lower damper (14).
WARNING
CAUTION
CAUTION