TM 5-5420-226-20-2
DRAIN ENGINE OIL (Sheet 3 of 3)
10.
Using 3/4 inch socket, tighten
oil drain valve (K).
11.
Using torque wrench, tighten
oil drain valve (K) to 150 lb-
in (17 Nm).
12.
Using 9/16 inch socket with
extension and torque wrench,
install and torque vent bolt
(H) and new sealing washer
(J) to no more than 150 lb-
in (17 Nm).
13.
Refill crank case (TM 5-5420-
226-10).
14.
Install upper engine access cover (page 17-1 5).
15.
Line up four holes in valve seat (A), gasket
(E), and hull floor (C).
16.
Using 3/4 inch socket, install four screws (B)
and lockwashers (D) holding valve seat (A)
and gasket (E) to hull floor (C).
17.
Operate rear drain valve
to make sure valve opens
and closes smoothly.
If valve does not open or
close properly, remove,
inspect, and install valve
assembly again.
End of Task
6-14
