TM 9--2350--292--20--1
0187 00--153
0187 00
PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDING
LUBRICATION INSTRUCTIONS -- CONTINUED
TABLE 3 PREVENTIVE MAINTENANCE CHECKS AND SERVICES
INCLUDING LUBRICATION INSTRUCTIONS, SEMIANNUALLY -- CONTINUED
ITEM
NO.
NOT FULLY
MISSION
CAPABLE
IF:
PROCEDURE
LOCATION
ITEM TO
CHECK/
SERVICE
INTERVAL
SEMIANNUALLY
EXTERIOR
61
Drain Valves and
Drain Valve
Seals
a. Operate drain valve lever (1)
(TM 9--2350--292--10) to ensure free
operation of two drain valves (2 and 3)
(located at front and rear of underside of
hull). Drain valves (2 and 3) should seal
completely when closed.
b. Inspect drain valves (2 and 3) bearing
surfaces for nicks, dents, scored bearing
surface and out of roundness.
NOTE
Whenever nose piece is
removed, clean front drain valve
screen.
c. Clean drain valves (2 and 3) screens.
Any
improperly
sealed or
damaged
drain valve
or
components.
FORWARD
1
2
3
