LIT-018-00 – Brakerite Electric Hydraulic Brake Actuation System

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NHTSA ID Number: 10163179

Manufacturer Communication Number: LIT-018-00

Summary

BrakeRite Electric/Hydraulic Actuation System Operation Maintenance Service Manual

 

1 Affected Product

Equipment

BRAND PART NO. PRODUCTION DATES
DEXTER AXLE CO DEXTER AXLE CO

 


Introduction ……………………………………………………… 2
Safety lnformation …………………………………………………….. 2
Overview …………………………………………………………………. 2
Electrical ………………………………………………………….. 3
Installation ……………………………………………………….. 4
Operation …………………………………………………………. 6
Service and Maintenance …………………………………………… 6
Troubleshooting ………………………………………………………… 6

 

Introduction

Thank you for purchasing a Dexter BrakeRite Actuator system. Dexter has been a pioneer in development of brake actuation and brakes. Dexter’s BrakeRite systems are state of the art ELECTRIC over HYDRAULIC BRAKE (EHB) systems.

 

CAUTION

  • Verify wire connections are correct before energizing or powering BrakeRite system. Improper wiring can damage actuation system causing system failure.
  • Failure to use proper gauge wire can result in improper operation or failure of components and braking ability. For runs of wire more than twenty (20) feet, larger gauge wire should be used.
  • Proper grounding must be observed. Grounding to trailer frame is not acceptable. See provided diagrams for proper wiring.

Dexter’s BrakeRite systems use electric power from towing vehicle to drive hydraulic power source. In breakaway situations, electric power is supplied by a battery if trailer is completely separated from tow vehicle. This battery is charged by built in control circuitry in Dexter’s BrakeRite. All BrakeRite systems are actuated one of three ways; by brake pedal of tow vehicle being depressed, manual over-ride switch on in-cab brake controller, or during breakaway situation when breakaway switch is activated. Both manual override and breakaway systems are required by Federal Law.

All Dexter BrakeRite systems require in-cab electric brake controller which is not provided in these systems. These actuators will operate from most electric brake controllers WHEN PROPERLY INSTALLED.

Proper electrical wiring is critical for performance of any BrakeRite system. Improper wiring can damage actuation system causing system failure. A pure ground and direct power (+12 VCD) with fuse or circuit breaker (30 amp) are necessary for proper performance. Adequate wire size, 12 Gauge Stranded Automotive or heavier, is required as long runs increase line loss. Line loss and poor grounding will result in poor performance or total loss of braking. Connection for Brake Rite II SD and BrakeRite Plug and Play systems are provided by pre-wired harnesses and plug connectors are keyed so they cannot be connected wrong, however, if plug between tow vehicle and trailer is not wired properly, unit will not function properly, or at all. See proper wiring diagram for assistance.

 

Safety Information

  • Installation, maintenance, or repair should ONLY be performed by qualified persons who have training or knowledge of the systems.
  • When installing, maintaining, or repairing Dexter equipment, wear eye protection and other necessary personal protective equipment.
  • Dexter equipment must be maintained in safe working order at all times. Trailer equipment should be inspected before, during, and after use for wear and damage.
  • Inspect trailer and equipment before each use.
  • Check that brake fluid level is within 3/8″ from filter opening.
  • Verify breakaway protection is working properly.
  • Confirm breakaway battery is charged properly.
  • Confirm brake actuator being used can supply enough hydraulic pressure and volume to actuate disc brakes. As a common rule, disc brakes require more pressure and larger volume of fluid than drum brakes of same size.
  • Use DOT3, DOT4 or DOT 5 brake fluid. Failure to use correct brake fluid may result in brake failure.

CAUTION

DOTS fluid can be used with new systems only. This Includes brake lines and brakes. Flush BrakeRlte with mineral oil before filling with DOTS fluid. Once DOTS brake fluid Is used, only use DOTS fluid and do not use DOT3 or DOT 4 fluids. Do not use DOTS fluid on a used BrakeRlte.

  • Be familiar with state laws in operation of towed vehicles, especially with regard to brake and braking requirements. Towing a trailer may require additional braking time and distance. Allow for this in driving habits while towing.
  • Make certain equipped trailer is safely supported at all times during installation, maintenance or repair.
  • After every hookup, test and confirm trailer brake system is operating correctly and adequately before transportation on roads

Before each towing, perform these steps:

1. Check brake fluid reservoir is within 3/8″ from filler opening of fresh, clean DOT3, DOT4 or DOT 5 brake fluid.

2. Check for leaks. Service as required.

3. Examine actuator for wear, or other damage. Have affected components serviced. Verify actuator mounting bolts are tight.

4. Test actuator and brake function before transport. Failure to properly adjust brakes will result in loss of braking.

There are no adjustments on BrakeRite actuators. BrakeRites are shipped with tamper proof seals between cover and casting. Warranty is void if seals are broken. Dexter genuine replacement parts are available at dexteraxle.com

 

Overview

All BrakeRite units are similar, differences are with electronics. BrakeRite EHB has an ECB (electronic control board) built within unit and has five wires exiting. Termination of these five wires is performed by installer per wiring diagram. If not properly connected, unit will not perform properly or at all. BrakeRite II has no ECB and has a 3 wire cable with Female Weather Pack plug; therefore it requires a control module. With BrakeRite II SD (Severe Duty) control modules are used.

All BrakeRite models use the same electric motor driven piston pump and electronic controlled pressure relief valve. Exterior appearance between them is very similar, only wires exiting housing, control board, and distinct Model Markings are different.

SD Control Kit for BrakeRite II is same control circuitry as BrakeRite EHB. However efforts to improve installation efficiencies and reliability SD Control kit consists of; one SD control module, one 1/0 harness with 7-pin RV plug 7-pin RV receptacle with three wiretap with Weather Pack plug, and one battery cable with Weather Pack plug. All electrical circuitry are individual circuits are keyed so wires cannot be connected improperly. Great importance must be placed upon proper wiring in tow vehicle plug.

Brake pressure for all BrakeRite models are controlled by most in-cab electronic brake controllers. Brake performance is selected by driver. Manual override can also be applied if driver wishes to apply only trailer brakes.

Federal law requires ALL trailers with brakes have ability to apply brakes in event trailer become uncoupled from tow vehicle. This requires a breakaway switch and power source (battery) on trailer. All BrakeRite systems have circuitry for breakaway, however, breakaway switches are provided only with SD control kits and no breakaway batteries are supplied with any kits.

 



LIT-018-00

https://www.nhtsa.gov/recalls?nhtsaId=10163179

https://static.nhtsa.gov/odi/tsbs/2019/MC-10163179-0001.pdf

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Last update on 2024-04-14 / Affiliate links / Images from Amazon Product Advertising API

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