Ford F-650 2015 Owner's Manual page 147

146
Normal Driving Position
Push in both knobs to supply air to both trailer and tractor spring
brakes, releasing all brakes.
System Park
B
A
With both knobs pushed in (normal driving position), the parking brakes
for both the tractor and trailer can be applied by pulling the parking
brake knob (B) out, exhausting air from the tractor spring brakes,
simultaneously causing the trailer air supply valve to pop out, applying
the trailer brakes.
2015 F-650/750 (f67)
Owners Guide gf (ownloose), 1st Printing, December 2013
Canadian_French (fr_can)
Brakes
B
A
B
A
I n f o r ma t i o n P r o v i d e d b y :
B
A