BENDIX SD-13-4783 Manuel D’Utilisation
1
SD-13-4783
Bendix
®
EC-13
™
Trailer AntiLock Controller Assembly
DESCRIPTION
GENERAL
Bendix trailer antilock systems utilizing the EC-13
™
electronic controller assembly provide AXLE braking control
for trailers. By controlling “wheel lock-up” during aggressive
braking, the trailer retains a high degree of stability and
steerability while braking, and vehicle stopping distance
may be reduced.
for trailers. By controlling “wheel lock-up” during aggressive
braking, the trailer retains a high degree of stability and
steerability while braking, and vehicle stopping distance
may be reduced.
In order to provide AXLE control antilock, the EC-13
™
controller is used in combination with the following
components;
components;
-
Four, individual wheel speed sensors
- Two
M-12R
™
remote mount modulator-relay valves
or a combination of one M-12
™
and one M-12R
™
modulator
PHYSICAL
The EC-13
™
controller assembly electronics, which regulate
the function of the antilock system, are contained in a die
cast aluminum housing and are environmentally protected
by silicone encapsulation. The metal housing, coupled with
the design of the digital electronics, is intended to provide
a high degree of protection from radio and electromagnetic
interference.
cast aluminum housing and are environmentally protected
by silicone encapsulation. The metal housing, coupled with
the design of the digital electronics, is intended to provide
a high degree of protection from radio and electromagnetic
interference.
A diagnostics display window with 9 light emitting diodes
(LEDs) and a magnetically actuated reset switch is
incorporated in the housing for troubleshooting and
diagnostic purposes.
(LEDs) and a magnetically actuated reset switch is
incorporated in the housing for troubleshooting and
diagnostic purposes.
A single electrical connector is currently used on the
EC-13
EC-13
™
controller, for connection to the antilock system
components; a 30 pin, Packard Electric, 150 series “Metri-
pack.”
pack.”
MOUNTING
The EC-13
™
controller can be remote bracket mounted to a
frame member or can be mounted directly on a modulator-
relay valve assembly, such as the Bendix
relay valve assembly, such as the Bendix
®
M-12
™
modulator
(reference SD-13-4772). When the EC-13
™
controller is
mounted on a modulator assembly the resulting assembly
receives a different designation. For example when the
EC-13
receives a different designation. For example when the
EC-13
™
antilock controller is mounted on the M-12
™
modulator the resulting assembly (i.e.; EC-13
™
controller
plus M-12
™
modulator) is known as a MC-13
™
modulator
controller (see Figure 3). When the EC-13
™
controller is
bracket mounted to a frame member, and not mounted
on the modulator, an M-12R
on the modulator, an M-12R
™
modulator is used. The
M-12R
™
modulator is identical to the M-12
™
modulator but
has remote mounting capabilities (see Figure 6).
DIAGNOSTIC
WINDOW
30 PIN WIRE HARNESS
CONNECTOR
EC-13
™
Trailer AntiLock Controller
FIGURE 1 - EC-13
™
TRAILER ANTILOCK CONTROLLER
MOUNTING HOLES (4)