TM 1-1520-238-23
13-28
Change 4
13.8.
ENCU TEMPERATURE CONTROL SHUTOFF VALVE/ELECTRICAL CONTROL VALVE
CLEANING - continued
e. Blow air inside of ENCU temperature control
shutoff valve (10) with dry compressed air.
(1) Hold shutoff valve (10) horizontal with air inlet
port (11) pointed up.
(2) Blow air inside shutoff valve (10) at port (11)
and air outlet port (12) with dry compressed
air. Use air blow gun.
(3) Actuate shutoff valve (10) several times by
inserting a pin punch through port (13) on
actuator cover (2).
(4) Blow dry inside of shutoff valve (10) at ports
(11) and (12) with dry compressed air. Use air
blow gun.
f. Install two plugs (1) on actuator cover (2).
(1) Lubricate two new packings (3). Use
petrolatum (item 138, App F).
(2) Install two packings (3) on two plugs (1).
(3) Install two plugs (1) on actuator cover (2).
g. Lockwire two plugs (1) to actuator cover (2).
Use wire (item 226, App F).
h. Inspect (QA).
i. Install ENCU electrical control valve (para
13.7).
j. Install ENCU temperature control shutoff
valve (para 13.6).
END OF TASK
M04-3741-5
11
12
10
2
13
1
3
2
3
1
M04-3741-6
