TM 9-2330-371-14&P
5A. PARKING BRAKE (use on USA PAO1UX thru PAO21W)
NOTE
The parking brake is used to release air from the air
a. P u l l p a r k i n g b r a k e h a n d l e ( 2 ) , l o c a t e d o n l e f t s i d e o f
s e m i t r a i l e r u n d e r t h e a i r charging valve (1), to apply brake system.
To release parking brake, push handle (2) in.
b.
Change 1 4-20.1