TM 55-1520-240-23-5
6-120
INSTALL FORWARD TRANSMISSION DIFFUSER
(Continued)
6-120
INSTALL IMPELLER
3.
Coat bore of impeller (5), key (6), and input shaft
(7) with oil (E254). Align impeller with key. Install
impeller over input shaft. Use mallet.
Oil (E254) is toxic. It can irritate skin
and cause burns. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
In case of contact, immediately flush
skin or eyes with water for at least
15 minutes. Get medical attention
for eyes.
NOTE
Use only oil (E254) on locknut thread.
Do not use grease.
4.
Apply light coat of oil (E254) to thread of locknut
(8). Wear gloves (E186). Loosely install locknut
on shaft (7). DO NOT USE GREASE.
5.
Position tangwasher (9) over shaft (7).
6.
Torque locknut (8) and install tangwasher (9) as
follows:
a.
Install adapter assembly (10) in input shaft
(7).
b.
Install spanner (11) and torque wrench (12)
on locknut (8).
c.
Place wood plank (13) across nuts (14) as
shown.
d.
Brace plank (13) against transmission lug (15)
to keep adapter assembly (10) from turning.
Torque locknut (8) to 180 foot-pounds.
e.
Install tangwasher (9) on locknut (8). If
tangs do not align with slots in nut, rotate
tangwasher 180º and install.
f.
If tangs do not align, increase torque on
locknut (8) in small steps until tangs align. Do
not torque over 230 foot-pounds.
g.
Remove adapter and plate assembly (10).
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