BENDIX TLV-9000 Data Layanan - Halaman 6

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SYSTEM DIAGRAM

Figure 4 shows a trailer air-brake schematic of a single lift

axle controlled by the TLV-9000

axle valve operation is electronically controlled with Bendix

TABS-6

Advanced by using a load (pressure) sensor to

™

indicate payload weight and a leveling valve to control the

suspension height.

The valve has two air supply (inlet) ports and four air

delivery (outlet) ports. One supply port is the suspension

supply (Port 11) and the second is the lift supply (Port 1).

The valve has two ports for each delivery; Ports 21 deliver

to each suspension bag and Ports 23 deliver to each lift

bag. The exhaust port is located on the side of the valve

between the two supply ports and allows the lift bags and

suspension bags to exhaust. Refer to Table 1 and Figures

1 and 5.

INSTALLATION REQUIREMENT

For proper TLV-9000 valve and lift axle performance, the

recommended tubing size from the reservoir pressure

protection valve to the S1 supply port shall be 3/8" O.D.

(1/4" I.D.) copper or non-metallic per SAE J844, and

maintained as such without reductions. Any restrictions

in the supply line (including fittings) may delay or prevent

the valve from operating as designed.

PREVENTIVE MAINTENANCE

Important: Review the Bendix Warranty Policy before

performing any intrusive maintenance procedures. A

warranty may be voided if intrusive maintenance is

performed during the warranty period.

No two vehicles operate under identical conditions; as

a result, maintenance intervals may vary. Experience is

a valuable guide in determining the best maintenance

interval for air supply system components. At a minimum,

the TLV-9000 valve should be inspected every 6 months

Lap Top

Computer

J2497 (PLC)

or J1939

Figure 9 – Laptop Computer with Bendix

Diagnostic Software

lift axle valve. The lift

™

USB Cable

Noregon

Adapter

ACom

or 1500 operating hours, whichever comes first, for

proper operation. Should the TLV-9000 valve not meet the

elements of the operational tests noted in this document,

further investigation and replacement of the valve may be

required.

SERVICE

The TLV-9000 lift axle valve sold in North America is

non-serviceable. See your authorized Bendix service parts

outlet for a replacement valve or wiring harness, if needed.

OPERATIONAL AND LEAKAGE TESTS

There are two methods of performing operational and

leakage tests for the TLV-9000 lift axle valve. The first

method can be performed using Bendix

software (which can be downloaded from bendix.com) and

the second can be completed by manually testing the valve.

1 - TESTING WITH ACOM DIAGNOSTIC SOFTWARE

ACom diagnostic software (version 6.17.4.3 or higher) is an

RP-1210 compliant, PC-based diagnostic software pro-

gram that provides the highest level of diagnostic support

for the air brake systems that use the Bendix

Advanced MC

module. With Bendix ACom diagnostic

™

software, maintenance personnel can:

• Obtain DTC information (both active and inactive DTCs)

• Retrieve event history

• Clear inactive DTCs and event history

• Verify ECU configuration

• Perform system and component tests

• Read/write customer information in the scratch pad

• Save and print information

• Receive troubleshooting assistance

Connect the computer's serial or parallel port to the

vehicle's diagnostic connector through an RP-1210

compliant communications device.

Figure 10 – Bendix ACom Start Screen

ACom

diagnostic

TABS-6

Press

Start / Next