TM 5-5420-226-20-1
Svmotom-50
DETAILED
TROUBLESHOOTING
PROCEDURE
-,.
~
SUPPORT
SYSTEM
- DRAIN
VALVES
FRONT
HULL
DRAIN
VALVE
WILL
NOT WORK.
Check front drain valve and valve cage for binding or
obstruction.
Technician
(Front
of Crew
Compartment)
l Press down on front drain valve knob with thumbs and
release.
l Repeat above step 3 or 4 times.
l
Check
if valve moves
freely between
CLOSED
and
OPEN
positions
and returns
to CLOSED
position
when
released.
l
Check
if valve is not obstructed
from closing by foreign
matter
in valve.
Is valve binding or obstructed?
m
I(page 17-21).
FOR CLARITY QUADRANT
ASSEMBLIES NOT SHOWN
/
/-
CONTROL LEVER
/r
,..
FRONT DRAIN VALVE
ASSEMBLY
,
)
l
Remove control lever
(page 17-21).
l
Clean control lever if rusted or
corroded.
l
Replace control lever if
damaged (page 17-21).
TA107237
.,
4-548