TM 1-1520-238-23
1-89
1.29.
ENGINE NOSE GEARBOX OIL SAMPLING – continued
a. Remove chip detector probe (1) from gearbox
(2).
(1) Place rags to catch spills.
(2) Push on probe (1) and turn counterclockwise
to remove.
(3) Remove and discard packing (3) from probe
(1).
b. Obtain oil sample (TB 43-0106).
(1) Insert drain adapter (4) into nose gearbox (2)
and turn clockwise to lock.
(2) Obtain oil sample.
(3) Push on drain adapter (4) and turn counter-
clockwise 1/4-turn to remove.
c. Install probe (1) in gearbox (2).
(1) Lubricate new packing (3). Use lubricating oil
(item 118, App F) or lubricating oil (item 119,
App F).
(2) Install packing (3) on probe (1).
(3) Push probe (1) into gearbox (2). Turn probe
(1) clockwise to lock.
NOTE
Probe is properly installed when knurl tips
aline with hex points.
d. Check oil level in engine nose gearbox and
add oil if necessary (para 1.28).
e. Install engine nose gearbox fairing LN6 and
RN6 (para 2.2).
END OF TASK
M04-3044-3
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3
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4
M04-3044-4
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M04-3044-5
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