TM 1-1520-238-23
1-86
1.28.
ENGINE NOSE GEARBOX SERVICING – continued
a. Remove chip detector probe (1) from gearbox
(2).
(1) Place rags to catch spills.
(2) Push in on probe (1) and turn counterclock-
wise to remove.
(3) Remove and discard packing (3) from probe
(1).
b. Drain oil from gearbox (2).
(1) Place end of drain hose (4) in pail.
(2) Push drain hose (4) adapter (5) into gearbox
(2). Turn adapter (5) clockwise to lock.
(3) Drain all oil from gearbox (2).
(4) Push adapter (5) and turn counterclockwise
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).
NOTE
Probe is properly installed when knurl tips
aline with hex points.
(3) Insert probe (1) into gearbox (2). Turn probe
(1) clockwise to lock.
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M04-1604-3
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M04-1604-4
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