Bendix Commercial Vehicle Systems MV-3 DASH CONTROL MODULE 3/04 - Manual (Page 3)

3
ACTuATION OF TRAIlER PARkINg OR
EMERgENCy BRAkES (FIguRE 5)
To actuate only the trailer brakes, pull out the red button,
exhausting the trailer supply line. The trailer brakes are
now applied either by emergency air or spring brakes,
depending on the type of trailer system.
FIGURE 4 - norMal oPeratinG Position traCtor & trailer
( ; + 6 83
( ; + 6 83
( ; + 6 83
( ; + 6 83
( ; + 6 83
( ; + 6 83
( ; + 6 83
( ; + 6 83
ReD yellOW
ReD yellOW
traCtor
SerViCe
reSerVoir #2
traCtor SerViCe
reSerVoir #1
to traCtor
SPrinG
BrakeS
traCtor
ProteCtion
ValVe
to trailer
SPrinG
BrakeS
QuiCk releaSe
ValVe
traCtor
SerViCe
reSerVoir #2
traCtor SerViCe
reSerVoir #1
to traCtor
SPrinG
BrakeS
traCtor
ProteCtion
ValVe
to trailer
SPrinG
BrakeS
QuiCk releaSe
ValVe
FIGURE 5 - trailer ParKed traCtor released
SySTEM PARk (FIguRE 2)
With both buttons in for normal run modes, the parking
brakes on both the tractor and trailer may be actuated
by pulling the yellow (parking brake) button out—which
exhausts the air from the tractor spring brakes and
simultaneously causes the red (trailer supply) button to
pop out, applying the trailer brakes. This complies with
Federal Regulations that one control must apply all the
parking brakes on the vehicle.