TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
2. BAP FRONT PIN LOCK WILL NOT OPERATE (continued).
AUDIBLE INSPECTION
(1) Remove air line fittings from right
and left outlet ports of control valve.
Check for air pressure at both
outlet ports by pressing plunger on
bottom of control valve.
(a) Very little or no air pressure at
one and/or both outlet ports
indicates control valve is
defective. Replace control valve
(b) Steady air pressure from both
outlet ports indicates control
valve is good.
(2) Install fittings on left and right
outlet ports of control valve.
(3) Install bracket on control valve with
two screws and new lockwashers.
(4) Install two screws and new lock-
washers on bracket and control
valve.
(5) Install lanyard and two screws, new
lockwashers, and nuts on bracket.
SCREW (2 PLACES)
AIR LINE
LOCKWASHER
(2 PLACES)
BRACKET
NUT
SCREW
(2 PLACES)
(2 PLACES)
CONTROL
VALVE
LOCKWASHER
AIR LINE
(2 PLACES)
AIR LINE
FITTING
FITTING
RIGHT
LANYARD
OUTLET PORT
LOCKWASHER
LEFT
(2 PLACES)
OUTLET
PORT
PLUNGER
SCREW
(2 PLACES)
AIR LINE
4-37
