CSP
−
900RMM
−
2
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 607
Revision 35
62-10-00
Do not apply lubricant or
preservative on blade
retention bolts.
DO NOT stand on helicopter cowlings or
hand holds to do these checks.
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 flex
beam up more than
1.0 in. (2.54 cm)
at
the blade attach point. Damage to the
flexbeam can occur.
2. Blade Retention Bolts
Special Tools
(Ref. CSP
−
SPM)
Item
Nomenclature
Ground Power Unit
NA
Push/Pull Spring Scale
(50 to 150 lbf /
22.68 to 68.04 kgf)
A. Visual Inspection of the Blade Retention
Bolts
(Ref. Figure 602, Figure 603, and Figure 604)
NOTE:
Examine the external bushing surfaces
when the blade retention bolts are removed
during periodic inspections or when the
blades are removed for maintenance.
(1). Examine the blade retention bolts for
correct installation.
(2). Examine the blade retention bolts for
grooves or steps on the bushing sur
faces.
(a). If there are grooves or steps on the
bushing surfaces, replace the blade
retention bolt.
B. Torque Check of the Blade Retention
Bolts (PN 900R3100001
−
101)
NOTE:
Make sure the lock ring (5) is fully outside
the bottom surface of pitchcase (7).
Do not loosen blade retention bolts (1).
(1). Release the collective friction to remove
the preload of flexbeams (ref.
67-10-00, Rotor Flight Controls
Removal / Installation).
(a). Apply electrical power with ground
power unit (T2002) (ref.
CSP-900RMM-3, Electrical Power
Maintenance Practices, Helicopter
Electrical Power).
(b). Push the collective friction release
switch forward to release the
collective friction.
(c). Raise the pilot collective stick
sufficiently to unload the collective
controls (approximately 15 to 30
percent indication on the IIDS).
(d). Remove electrical power (ref.
CSP-900RMM-3, Electrical Power
Maintenance Practices, Helicopter
Electrical Power).
(2). Support main rotor blade (9) in line
with the angle of pitchcase (7).
(3). Push in plunger (2) at top of blade
retention bolt (1) with a 5/16-inch hex
wrench.
(4). Make sure the torque on hex nut (4) is
800 in-lb (90.39 Nm)
minimum.
(a). If hex nut (4) moves before you get
this torque, continue to torque to
800
in-lb (90.39 Nm)
.
(b). If the torque is more than
800 in-lb
(90.39 Nm)
no more torque checks
are required until the bolt is
removed.
(5). Remove hex wrench and make sure
plunger (2) returns to the full up
position.
(a). If plunger (2) does not return,
increase torque on hex nut (4) until
the plunger moves to the full up
position or until the torque is
1100
in-lb (124.28 Nm)
.
NOTE:
If plunger (2) does not move up before
1100 in-lb (124.28 Nm)
, depress the
plunger, loosen blade retention bolt (1), and
do the torque sequence again.
WARNING
CAUTION
Summary of Contents for CSP-900RMM-2
Page 19: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual INTRODUCTION Chapter ...
Page 20: ......
Page 23: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 01 00 00 Introduction ...
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Page 223: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual DIMENSIONS AND AREAS Chapter ...
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Page 249: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual LIFTING AND JACKING Chapter ...
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Page 273: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 08 20 00 Leveling ...
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Page 277: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual TOWING Chapter ...
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Page 281: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 09 00 00 Towing ...
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Page 287: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual PARKING AND MOORING Chapter ...
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Page 299: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 10 20 00 Mooring ...
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Page 311: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual PLACARDS AND MARKINGS Chapter ...
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Page 333: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual SERVICING Chapter ...
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Page 337: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 12 00 00 Servicing ...
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Page 401: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 21 20 00 Vent System ...
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Page 525: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual EQUIPMENT FURNISHINGS Chapter ...
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Page 627: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 25 60 10 Rescue Hoist ...
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Page 655: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FIRE PROTECTION Chapter ...
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Page 711: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FUEL SYSTEM Chapter ...
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Page 721: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 28 00 00 Fuel System ...
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Page 887: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual HYDRAULIC SYSTEM Chapter ...
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Page 925: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual LANDING GEAR Chapter ...
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Page 983: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual DOORS AND WINDOWS Chapter ...
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Page 1049: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FUSELAGE Chapter ...
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Page 1063: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 00 00 Fuselage ...
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Page 1205: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 40 00 Tailboom ...
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Page 1235: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 55 00 Empennage ...
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Page 1259: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Chapter MAIN ROTOR ...
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Page 1503: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 63 20 00 Gearboxes ...
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Page 1579: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 63 22 00 Rotor Brake ...
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Page 1619: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ANTI TORQUE ASSEMBLY Chapter ...
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Page 1685: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FLIGHT CONTROLS Chapter ...
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Page 1927: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual POWERPLANT Chapter ...
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Page 1935: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 00 00 Powerplant ...
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Page 1985: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 20 00 Engine Mounts ...
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Page 2001: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 60 00 Air Intake ...
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Page 2033: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 70 00 Engine Drains ...
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Page 2043: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE BLEED AIR Chapter ...
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Page 2053: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE CONTROLS Chapter ...
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Page 2105: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE EXHAUST Chapter ...
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Page 2109: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 78 00 00 Engine Exhaust ...
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Page 2121: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE OIL Chapter ...
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Page 2125: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 79 00 00 Engine Oil ...
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