BENDIX BW2428 Manuel D’Utilisation

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2
Delivery 
(Port 2) 
Supply 
(Port 1) 
Exhaust (Port 3) 
Electrical 
Connector
M-32QR
Modulator
M-32
Modulator
COMPONENTS
The EC-60
 controller’s ABS function utilizes the following 
components:
•  Bendix
®
 WS-24
 wheel speed sensors (4 or 6, 
depending on ECU and configuration). Each sensor is 
installed with a Bendix Sensor Clamping Sleeve
•  Bendix
®
 M-32
 or M-32QR
 Pressure Modulator Valves 
(4, 5, or 6 depending on ECU and configuration)
•  Dash-mounted tractor ABS Indicator Lamp
•  Service brake relay valve
•  Dash-mounted trailer ABS Indicator Lamp (used on all 
towing vehicles manufactured after March 1, 2001)
•  Optional blink code activation switch
•  Optional ABS off-road switch. (Off-road feature is not 
available on all ECUs - See Chart 1.)
The EC-60
 controller ATC function utilizes the following 
additional components:
•  Traction control valve (may be integral to the service 
brake relay valve or a stand-alone device)
•  Dash-mounted ATC status/indicator lamp
•  J1939 serial communication to engine control module
•  Stop lamp switch input (may be provided using the ECU 
hardware input or J1939)
•  Optional ATC off-road switch
FIGURE 4 - POWER LINE WITHOUT PLC SIGNAL
FIGURE 2 - BENDIX
®
 WS-24
 WHEEL SPEED SENSORS
FIGURE 3 - M-32
 AND M-32QR
 MODULATORS
FIGURE 5 - POWER LINE WITH PLC SIGNAL
ECU MOUNTING
Cab ECUs
Cab-mounted EC-60
 controllers are not protected against 
moisture, and must be mounted in an environmentally 
protected area.
All wire harness connectors must be properly seated.  The 
use of secondary locks is strongly recommended.
CAUTION:  All unused ECU connectors must be covered 
and receive any necessary protection from moisture, etc.
Cab ECUs utilize connectors from the AMP MCP 2.8 
product family.
Frame ECUs
Frame-mounted EC-60
 controllers may be mounted on 
the vehicle frame, but only in locations where they will not 
be subjected to direct tire spray.  ECU mounting bolts must 
be torqued to 7.5 to 9 Nm.
CAUTION:  The frame wire harness connectors must be 
properly seated with the seals intact (undamaged).  All 
unused connector terminals must be plugged with the 
appropriate sealing plugs.  Failure to properly seat or 
seal the connectors could result in moisture or corrosion 
damage to the connector terminals.  ECUs damaged by 
moisture and/or corrosion are not covered under the Bendix 
warranty.
Frame ECUs utilize Deutsch connectors.
90° Speed 
Sensors
Straight Speed 
Sensors
Sensor 
Clamping
Sleeve