BHT-412-MM-2
5-00-00
15 DEC 2015 Rev. 23 Page 149
Export Classification C, ECCN EAR99
20-057-5-28D Pitch horn to pitch link (4)
20-057-6-36D
(or 20-057-6-52D)
Pitch link to rephasing
lever (4)
20-057-6-36D Drive Link to rephasing lever
(4)
20-057-6-36D
(or 20-057-6-38D)
Swashplate link to rotating
ring (2)
20-057-6-52D Swashplate link to rephasing
lever (2)
20-057-8-84D Rephasing lever to hub (4)
20-057-8-92D Collective lever to
swashplate support (1)
212-001-323-001 Hydraulic cylinder to lower
support (3)
BHT-ALL-SPM 2. Clean bolts with cloth dampened with MEK (C-309) or
equivalent.
3. Inspect bolts for thread damage, shank wear, and
corrosion. Replace any bolt that has damaged threads,
detectable shank wear, or exhibits corrosion pitting.
4. Apply corrosion preventive compound (C-104) to bolt
shanks only and install. Do not apply to the bolt threads.
5. Operations in extreme environmental conditions,
that
erode hard film
corrosion preventive compound (C-101), may
warrant periodic touch-up of control bolts external surfaces.
Prior to touch-up, visually check exposed surfaces of hardware
for evidence of corrosion and fretting. Remove, clean, and
inspect bolts as conditions warrant.
6. After bolts have been installed and nuts torqued and
lockwired, coat bolt heads and nuts with corrosion preventive
compound (C-101).
5-27. EACH 24 MONTHS OF CONTROL BOLT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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