TM 1-1520-238-23
1-87
1.28.
ENGINE NOSE GEARBOX SERVICING – continued
CAUTION
Do not mix lubricating oil (item 118,
App F) with lubricating oil (item 119,
App F) except in an emergency. The sys-
tem must be drained and refilled with the
proper oil as soon as possible if it be-
comes necessary to mix oils.
d. Fill gearbox (2) with new oil. Use lubricating oil
(item 118, App F), or lubricating oil (item 119,
App F).
(1) Push on filler cap (6). Turn cap (6) counter-
clockwise to remove.
NOTE
To prevent overservicing, wait 15 min-
utes after shutdown for oil level to sta-
bilize.
Add oil only if the level in the sight
indicator is at or below the one-quarter
level.
Four ounces of oil will raise the level in
the sight indicator one-quarter (0.18
inch). Gearbox is full when oil level is
at center of sight indicator.
(2) Add lubricating oil (item 118, App F) or
lubricating oil (item 119, App F) until sight in-
dicator (7) shows oil level is at center. Use
funnel (8).
(3) Push on filler cap (6) and turn clockwise to
lock.
e. Install engine nose gearbox fairing LN6 or
RN6 (para 2.2).
END OF TASK
M04-1604-6
6
7
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