CSP−HMI−2
MD Helicopters, Inc
.
MAINTENANCE MANUAL
Page 510
Revision 39
18−10−00
369D29935 MAIN ROTOR
HUB BALANCE WEIGHT
SUPPORT WASHER
NOTE 1
MS21042L08 NUT
(NOTE 2)
AN960C8, AN960C8L WASHERS
AS REQUIRED TO BALANCE
(NOTE 5)
369D21220 LEAD−LAG BOLT
369D29934 WASHER
NAS602−64P, −72P OR −76P
SCREW
369A1219 NUT AND
MS24665−300 COTTER PIN
(NOTE 4)
LINK ASSY
369D21300−501
PITCH HOUSING
NOTE 1
MS21042L3 LOCKNUT
(NOTE 3)
AN960C10, AN960C10L WASHERS
AS REQUIRED TO BALANCE
(NOTE 5)
HS1555 WASHER
369A1220 LEAD−LAG BOLT
HS1554 WASHER
369A1219 NUT AND
MS24665−300 COTTER PIN
(NOTE 4)
NAS603−56 OR −64
SCREW
A − A
SERIAL NO. 003D THRU 0259D
A − A
SERIAL NO. 0260D AND SUBS
NOTES:
1. COAT SCREW THREADS, NUTS AND WASHERS
WITH PR−1436−G, CLASS B−2 SEALANT.
2. TORQUE MS21042L08 NUT TO 20 − 35 INCH−POUNDS
(2.26 − 3.95 NM).
3. TORQUE MS21042L3 NUT TO 30 − 60 INCH−POUNDS
(3.39 − 6.78 NM).
4. DO NOT REMOVE OR DISTURB TORQUE ON 369A1219 NUT.
5. THE MAXIMUM ALLOWABLE BALANCE WEIGHT PER LEAD−LAG
BOLT ON THE MAIN ROTOR HUB ASSEMBLY IS 150 GRAMS.
G18−1004B
A
A
AN970−3 WASHER
Figure 504. Main Rotor Hub Balancing
