TM 1-1520-238-23
6-174
6.36.
ENGINE NOSE GEARBOX AND QUILL SHAFT REMOVAL/INSTALLATION – continued
NOTE
Depin wires for nose gearbox low oil
pressure switch from S25 splices (No. 1
nose gearbox) or S26 splices (No. 2 nose
gearbox). Do not remove switch from
gearbox.
h. Identify and depin nose gearbox low oil pres-
sure switch electrical wires (15) and (16) from
S25/S26
splices
(17)
and
(18)
(TM 55-1500-323-24).
WARNING
The engine nose gearbox weighs
approximately 40 pounds. To prevent
possible injury to personnel or dam-
age to gearbox, two persons support
gearbox while third person removes
attaching hardware.
i. With two persons supporting gearbox (19),
third person remove 15 bolts (20) and wash-
ers (21).
j. Remove gearbox (19) from engine (22).
(1) Pull gearbox (19) straight out to prevent bind-
ing of quill shaft (23).
k. Remove quill shaft (23) from engine (22).
(1) Pull shaft (23) straight out to remove from
engine (22).
(2) Remove and discard three packings (24) and
packing (25) from shaft (23).
l. Perform steps m. thru o. if engine nose gear-
box is being replaced.
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