BENDIX A-18 TRAILER ABS Instrucciones de operaciones

Easy-StopTM Trailer ABSMaintenance Manual No. 33Revised 4-98$2.50• 2S/1M (Basic and Standard), 2S/2M, 4S/2M and 4S/3M SystemsTRAILER ABSmm33.fm Page

Section 2System ComponentsPage 6Installation Hardware Kit앫 Contains Schedule 80 NPT pipe nipple fittings and Grade 8, 3/8-inch SAE bolts for proper mo

Page 7Section 3ABS Questions and AnswersSection 3 ABS Que stions and AnswersThe Electronic Control Unit (ECU)How do you activate the ECU?In a constan

Section 3ABS Questions and AnswersPage 8Table C — Constant PowerAn ECU with part number 472 500 001 0 manufactured prior to September 1997 requires al

Page 9Section 3ABS Questions and AnswersCan you continue to operate a vehicle when the warning lamp indicates a fault?Yes. When a fault exists in the

Page 11Section 4System ConfigurationsSection 4System Configurations2S/1M Trailer ABS Configuration Without External Diagnostics Capability Installati

Section 4System ConfigurationsPage 122S/1M Trailer ABS Configuration with External Diagnostics Capability Installation DiagramFor direct tank-mounted

Page 13Section 4System Configurations2S/2M Trailer ABS Configuration Installation DiagramFor direct tank-mounted installations, see “How to Install th

Section 4System ConfigurationsPage 144S/2M Trailer ABS Configuration Installation DiagramFor direct tank-mounted installations, see “How to Install th

Page 15Section 4System Configurations4S/2M Trailer ABS Configuration Diagram for Lift Axle Applications (Forward Lift Axle Installation Diagram)For di

Section 4System ConfigurationsPage 164S/2M Trailer ABS Configuration Diagram for Lift Axle Applications (Rear Lift Axle Installation Diagram)For direc

Copyright 1998 Meritor WABCOService NotesImportant InformationThis manual contains maintenance procedures for Meritor WABCO's Easy-StopTM Trailer

Page 17Section 4System Configurations4S/3M Trailer ABS Configuration Installation DiagramTypical Application:앫 Tandem with Lift Axle앫 Tri-Axle Semi-Tr

Section 4System ConfigurationsPage 18Power Cable Wiring DiagramsFigure 4.8Figure 4.91003302e4 OR 5 WIRE SCHEMATICP/N 449 315 XX0 0 OR 894 60X XXX 0 (I

Page 19Section 4System ConfigurationsPower Cable Wiring DiagramsFigure 4.10Figure 4.111003303cSTOPLIGHT POWER CIRCUITWHITEBLUEBLACKYELLOWREDBROWNGREEN

Page 21Section 5DiagnosticsSect ion 5 Diagn ostic sWARNINGSTo prevent serious eye injury, always wear safe eye protection when you perform vehicle mai

Section 5DiagnosticsPage 22Using the Blink CodeFor ECU Part Number 472 500 011 0 without diagnostic connector:1. Make sure the vehicle is stationary:앫

Page 23Section 5DiagnosticsDiagnostic Tools For ECUs with External Diagnostic ConnectorsMPSI Pro-Link® 9000 Diagnostic Tool(Meritor WABCO Cartridge Mo

Section 5DiagnosticsPage 24How to Test for Existing Faults Using the Normal ModeWhen you use Normal Mode diagnostics, the blink code lamp displays a n

Page 25Section 5DiagnosticsRepair Existing Faults앫 With Normal Mode diagnostics, you must repair an existing fault before you can identify and repair

Page 27Section 6Component ReplacementSection 6Com ponent ReplacementWARNINGSTo prevent serious eye injury, always wear safe eye protection when you pe

Section 6Component ReplacementPage 284. Install the wheel hub carefully, so that the tooth wheel pushes against the sensor as you adjust the wheel bea

Table of ContentsiAsbestos and Non-Asbestos Fiber Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiSection 1

Page 29Section 6Component Replacement6. If the assembly being replaced is under warranty, please return it to the trailer OEM for replacement.How to I

Section 6Component ReplacementPage 302. Connect the air lines to the ports. Follow the label markers installed when the air lines were disconnected.3.

Page 31Section 7Sensor Adjustment & Component TestingSection 7 Sensor Ad justment & Component Testin gHow to Test Wheel Speed SensorsNOTEAt

Section 7Sensor Adjustment & Component TestingPage 32Final Test Before Returning a Trailer to ServiceFor ECU/Valve Assembly Part Number 472 500 01

Page 33Section 7Sensor Adjustment & Component TestingABS Sensor Installation Test (ECU Part Number 472 500 011 0)1. Remove power.2. Raise both sen

Section 7Sensor Adjustment & Component TestingPage 34For ECU/Valve Assembly Part Numbers 472 500 012 0 and S 472 500 013 0 (Units with External Di

Page 35Section 7Sensor Adjustment & Component TestingSensor Installation Test (ECU Part Numbers 472 500 012 and 472 500 013 0)Purpose of Test: To

Section 7Sensor Adjustment & Component TestingPage 36Trailer IdentificationAn Easy-Stop™ Trailer ABS warning label is generally affixed to the tra

Page 37Section 8AppendixesSection 8Append ixesAppendix AExpert Mode DiagnosticsWhen you use Expert Mode diagnostics, the blink code lamp identifies an

Section 8AppendixesPage 38Blink Code Example (4S/2M Configuration)Expert ModeTable J — Expert Mode Fault CodeFigure 8.1Blink CodeComponent or Location

iiASBESTOS FIBER WARNINGThe following procedures for servicing brakes are recommended to reduce exposure to asbestos fiber dust, a cancer and lung dis

Page 39Section 8AppendixesTable J — Expert Mode Fault Code (continued)67X Sensor YE2 Out of Adjustment Adjust sensor.610X Sensor YE2 Speed Erratic Che

Section 8AppendixesPage 40Appendix BReconfigure ModeBlink Code Example (4S/2M Configuration)Reconfigure ModeFigure 8.21002098b1 S 1 S 1 SOFF 2.5 SOFF

Page 41Section 8AppendixesWhen to Use the Reconfigure ModeUse the Reconfigure Mode to (1) reconfigure the ECU if necessary (see Table K — ECU Reconfig

Section 8AppendixesPage 42Appendix CWarning Lamp DiagnosticsECU Part Numbers 472 500 011 0, 472 500 012 0, and 472 500 013 0If you do not have easy ac

Information contained in this publication was in effect at the time the publication was approved for printing and is subject to change without notice

Page 1Section 1IntroductionSection 1Introductio nOverviewThis manual describes how Meritor WABCO's Easy-Stop™ Trailer Anti-Lock Braking System (A

Section 1IntroductionPage 2Easy-Stop™ Trailer ABS PartsParts book PB-96133 lists Meritor WABCO Easy-Stop™ replacement parts. To obtain a copy, contact

Page 3Section 2System ComponentsSection 2System ComponentsECU/Valve Assembly앫 12 volt앫 Integrated ECU and ABS relay valve앫 The 2S/1M Basic ECU/Valve A

Section 2System ComponentsPage 4Connection Cable for ABS External Valves앫 Three-wire cable with connector. 앫 Connects the ABS external valve to the EC

Page 5Section 2System ComponentsDiagnostic Cable Mounting Bracket앫 Bracket used to mount the diagnostic cable assembly to the trailer. ECU/Valve Assem