TM 1-1520-238-23
2-300
2.86.
ROTOR SUPPORT MIXER ASSEMBLY AND BOLT REMOVAL/INSTALLATION – continued
f. Check bearing for binding, catching, corro-
sion, metal chips, and other contamination
(TM 55-1500-322-24). None allowed.
g. Measure inside diameter of bearing.
(1) If bearing measures more than 1.3755 INCH-
ES in diameter, replace rotor support mixer
assembly.
2.86.6. Installation
a. Lubricate threads and bearing face of bolt (1),
internal threads of support (2), and bearing
face of washer (3). Use antiseize compound
(item 26, App F) and brush (item 34, App F).
b. Install support (4) in base (2).
(1) Position support (4) in base (2).
(2) Hold support (4). Install new washer (3) and
bolt (1).
c. Torque bolt (1) 230 to 280 FOOT-POUNDS.
(1) Torque bolt (1) to 280 FOOT-POUNDS. Use
torque wrench and torque wrench adapter.
(2) Back off bolt (1) to remove all preload.
(3) Retorque bolt (1) to 280 FOOT-POUNDS.
Use torque wrench and torque wrench
adapter.
(4) Back off bolt (1) to remove all preload.
(5) Retorque bolt (1) to 230 FOOT-POUNDS.
Use torque wrench and torque wrench
adapter.
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