BENDIX MC-11 TRACTOR ANTILOCK, Руководство пользователя

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1
®
Bendix
®
MC-11
™
Tractor AntiLock
SD-13-4761
FIGURE 1
LED DIAGNOSTIC
DISPLAY
14-PIN
CONNECTOR
M-12 ™
MODULATOR
DELIVERY
DELIVERY
SUPPLY
CONTROL
EC-11 ™
CONTROLLER
DESCRIPTION
The Bendix ® MC-11 ™ tractor antilock assembly is designed
to improve vehicle stability by reducing wheel lock-up during
aggressive braking. Like the MC-10
™ antilock assembly that
it replaces, the MC-11
™
tractor antilock assembly is a
one-channel system–it uses one modulator. And the system
can control single or tandem axles. The antilock assembly
mounts to the vehicle frame and usually replaces the drive
axle service relay valve.
The MC-11
™
tractor antilock assembly consists of an EC-11
™
electronic controller and an M-12 ™ modulator. The EC-11 ™
controller houses the electronics that regulate the antilock
system. The electronics are protected by a self-healing
silicone compound. The EC-11
™
controller contains a
diagnostic window and reset switch, and its 14 pin connector
is the electrical link to the rest of the antilock system. (See
Figure 2.) The controller mounts to the modulator with four
cap screws, and it is electrically connected to the modulator
with a four-pin connector. The M-12
™
modulator has two
components: solenoids, which rapidly apply and exhaust
air during an antilock stop, and a standard relay valve. (See
SD-13-4772 for more information on the M-12
™
modulator.)
The air connections for the MC-11 ™ tractor antilock assembly
are as follows:
AIR CONNECTION EMBOSSED
IDENTIFICATION
Supply
(to reservoir)
SUP
Delivery
(to brake actuator)
DEL
Control
(to rear service brake valve delivery)
CON