TM 1-1520-238-23
Change 4
1-93
1.31.
TAIL ROTOR GEARBOX SERVICING – GREASE – continued
1.31.3. Servicing
a. Service tail rotor gearbox (1). Torque filler plug
(2) to 40 INCH-POUNDS.
(1) Remove plug (2) from gearbox (1).
(2) Remove and discard packing (3).
(3) Check grease level. Use service tool.
(a) Insert tool with level markings pointing
down and handle touching bottom of filler
hole.
(b) Level must be within the indicated tail ro-
tor (TR) 0.50 INCH marking.
(4) Add grease (item 91, App F) as necessary to
fill to the indicated tail rotor (TR) 0.50 INCH
markings on tool. Use hand lubricating gun.
(5) Install new packing (3) on plug (2).
(6) Install plug (2) in filler plug hole (4).
(7) Torque plug (2) to 40 INCH-POUNDS. Use
torque wrench, crowfoot, and adapter.
b. Inspect (QA).
c. Install access fairing L540 (para 2.2).
END OF TASK
M04-3021-1
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