TM 1-1520-238-23
Change 2
2-350.13
2.95B.
MAIN ROTOR SUPPORT STRUT BUSHING REPLACEMENT (AVIM) – continued
TABLE 2-1
Mating Bore ID
Bushing OD
Bushing ID
Rotor Support Strut
P/N
Bushing P/N
Min
Max
Min
Max
Min
Max
Notes
7-311160055-1/-2
or
NAS76A12-022P
0.9373
0.9378
0.9383
0.9393
0.7500
0.7515
1, 2, 4, 6,
8, 10, 11
7-311160085-1/-2
7-211160047
0.9005
0.9010
0.8998
0.9002
0.7500
0.7505
1, 2, 4, 5,
7, 9, 11
HS4173B12P0.67
0.8745
0.8755
0.8760
0.8765
0.7500
0.7505
1, 2, 3, 4,
5, 7, 10, 11
7-311160060-1/-2
or
HS4173B12P0.67
0.8745
0.8755
0.8760
0.8765
0.7500
0.7505
1, 2, 3, 4,
5, 7, 10, 11
7-311160070-1/-2
NAS76A12-020P
0.9373
0.9378
0.9383
0.9393
0.7500
0.7515
1, 2, 3, 4,
6, 8, 10, 11
NOTE
1. All dimensions in inches.
2. Interference fit required: 0.0005/0.0020 INCH.
3. Bushings must be coaxial to each other after installation; therefore the opposite facing bushing must
be replaced.
4. Use carbon dioxide (item 40, App F) (dry ice). If necessary, use heater.
5. Go to step 2.95B.3.a when removing flanged bushing(s).
6. Go to step 2.95B.3.b when removing bushing(s) from strut fork and strut fork support.
7. Go to step 2.95B.6.a when installing flanged bushing(s).
8. Go to step 2.95B.6.b when installing bushing(s) in strut fork and strut fork support.
9. Install bushing using adhesive (item 14A, App F).
10. Install bushing using sealing compound (item 158A, App F).
11. No paint/primer allowed in holes or under flange.
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