BENDIX MC-30 TRAILER ABS CONTROLLER Technical Information PDF herunterladen (Seite 15)

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Alternatively, you may e-mail the Bendix technical

assistance team at: [email protected].

To better serve you, please record the following

information before you call the Bendix Tech Team,

or include this information in your e-mail:

• Bendix product model number, part number and

conﬁ guration.

• Vehicle make and model.

• Vehicle conﬁ guration. (Number of axles, tire size, etc.)

• System performance symptoms: When do they occur?

• What faults have been identiﬁ ed using LEDs, blink

codes or diagnostic tools?

• What troubleshooting/measurements have been

performed?

• What Bendix service data literature do you have or

need?

SERVICING THE TABS-6 MODULE

CAUTION: All TABS-6 modules are initially

defaulted to 2S/1M and may auto-conﬁ gure to

another ABS conﬁ guration if additional sensors

and/or ABS modulators are detected. An incorrect

ABS conﬁ guration may cause fault indication or

degraded ABS performance. Before and after

activating a self-conﬁ guration, always check the

current ABS conﬁ guration by using blink code

diagnostics or a diagnostic tool.

Prior to performing service to the TABS-6 module, always

perform the following steps:

1. Follow all Safe Maintenance Practices including, but

not limited to, those on page 2 of this document.

2. Turn power off.

3. Drain the air pressure from all reservoirs.

4. Remove as much contamination as possible prior to

disconnecting electrical connections and air hoses.

5. Note the TABS-6 module's mounting position on the

vehicle.

REMOVING THE TABS-6 MODULE

1. Open the cover by sliding the locking tab to the left.

Retain the cover.

2. Disconnect the 5- or 18-pin ECU connector and the two

2-pin wheel speed sensor connectors.

3. Mark for reinstallation and then remove all air hoses

and plugs connected to the module.

4. Remove the module from the vehicle by removing the

mounting fasteners or by rotating the entire assembly

counter-clockwise from the tank mount.

SERVICING THE CONTROL PORT FILTER

The TABS-6 module has an in-line ﬁ lter in the control port

(See Figure 1). This ﬁ lter should be inspected and cleaned

(if any contamination is found), every four months, 34,000

miles or 1,200 operating hours. For severe applications,

this inspection interval may be reduced. If the ﬁ lter is found

to be damaged, install a replacement. The ﬁ lter should

also be inspected as part of any troubleshooting where

the service brakes are slow to apply and other possible

causes have been ruled out.

SERVICE REPLACEMENT OF

OTHER ABS CONTROLLERS

The TABS-6 module is designed to be used as the

service replacement part for the Bendix

MC-12

™

MC-30

™

and A-18

™

trailer ABS controllers. When

controller service replacement parts are required, a

TABS-6 module and pigtail harness must replace the

entire MC-12

™

, MC-30

™

or A-18

™

controller assembly and

pigtail harness. When replacing an MCE-12

™

controller,

the integral emergency function (EV-2

™

valve) must be

replaced by a DC-4

and TR-3

™

valve combination. See

pages 18-21 for plumbing details. TABS-6 module kits are

available to replace MC-12

™

, MC-30

™

and A-18

™

controller

assemblies and harnesses. For more information, contact

Bendix or your local authorized Bendix parts outlet.

1. Disconnect the power connector and wheel speed

sensors from the MC-12

™

, MC-30

™

or A-18

™

controller

pigtail harness.

2. Remove all air hoses and plugs connected to the

unit.

3. Remove the MC-12

™

, MC-30

™

or A-18

™

controller

assembly and pigtail from the vehicle by removing the

mounting bracket nuts or by rotating the entire assembly

counter clockwise from the tank nipple mount.

4. Install the new pigtail, starting at the power connector

and properly securing the harness every 18 inches to

the ECU location.

5. Next, refer to the Reinstallation of the TABS-6 Module

section.

REINSTALLATION OF THE TABS-6

MODULE

CAUTION! All TABS-6 module service replacement

parts are initially defaulted to 2S/1M and may auto-

conﬁ gure to another ABS conﬁ guration if additional

sensors and/or ABS modulators are detected. An

incorrect ABS conﬁ guration may cause fault indication

or degraded ABS performance. Before and after

activating a self-conﬁ guration, always determine the

current ABS conﬁ guration by activating blink code

diagnostics.

Inspect the original mounting hardware: If it is in good

condition, it can be reused for installation. If replacement

hardware is needed, use grade-5 3/8-18 bolts, nuts and

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