TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
2. BAP FRONT PIN LOCK WILL NOT OPERATE (continued).
FRONT
PIN LOCK
MANUALLY EXTEND AND
CONTRACT TWO AIR CYLIN-
DERS WITHOUT BREATHER
INSTALLED.
(1) Remove breather from curb-
side and road-side air
LATCH
cylinders.
HANDLE
~
(2) Pull and release curb-side
and road-side latch handles
to extend and contract air
cylinders.
(a) If air cylinders do
BREATHER
extend and contract
smoothly, replace
breather (para 4-35).
(b) If air cylinders do not
AIR
extend and contract or
CYLINDER
move slowly and bind,
go to Step 6.
4-41
