TM 9-2320-279-34-2
Brake System Maintenance Instructions (Cont)
(12)
(13)
(14)
(15)
Install two pipe plugs (4) in lower ports (8
and (10) on backside of treadle valve (3).
Install air pressure gage (7) in upper delivery
port (6) on backside of treadle valve (3).
Install air supply fitting (9) in upper supply
port (5) on backside of treadle valve (3).
Install air supply line (11) on air supply
fitting (9).
(16)
Press pedal (12) to several positions between fully
released and fully applied. Delivered pressure on
gage (7) should vary proportionately with
movement of pedal (12).
(17)
Press pedal (12) until treadle valve (3) is fully
applied. Reading on gage should fall off to zero
when pedal (12) is released.
(18)
Press and hold pedal (12) with treadle valve (3)
fully applied.
Change 2
11-57