BENDIX TCH-003-050 User Manual

Technical Bulletin

Bulletin No: TCH-003-050 Effective Date: 6-6-2006 Cancels: N/A Page: 1 of 2

Subject: Bendix

Bendix Commercial Vehicle Systems LLC is conducting a voluntary safety recall campaign, Recall No.: 06E051,
involving the Bendix® SR-7™ Spring Brake Modulating Valve. This includes all SR-7™ valves manufactured between
April 1, 2006 and May 24, 2006, inclusive.

Identification:

The valves affected are SR-7™ valves with a casting code of “Bendix 1” and date codes 1D0106T (April 1, 2006) to
1E2406T (May 24, 2006) inclusive. Products outside the date code range, or products made with a casting code
of “Bendix 2” are NOT affected. See the attached information on how to identify if the valve is a part of the recall
campaign.

Problem Description:

Bendix has determined that a check valve inside the Bendix® SR-7™ spring brake modulating valve may not properly
seat, causing internal valve leakage. The leakage can result in delayed application of the spring brakes to park the
vehicle upon pulling of the dash valve button. The delay, which could last up to three minutes, may be accompanied
by secondary air leakage, such that the secondary reservoir is depleted. During this time, there is a risk that the
vehicle can roll away. This issue does not affect the operation of the vehicles service brakes, however it could affect
the emergency stopping distance in the event of a primary air system failure application of parking brakes.

The root cause of the problem is that the diameter of the valve cavity and width of the ribs which guide the internal
check valve, were manufactured by the valve body sub-supplier to the incorrect drawing revision. This condition
may occur intermittently.

®

SR-7™ Spring Brake Modulating Valve Recall

What you need to do:

Immediately stop using and/or selling any of the SR-7™ valves that fall within the recall parameters. Replacement
kits are available at no charge. A listing of replacement kit part numbers is on the back of this document. Also,
make sure your customers are aware of the recall campaign.

SR-7™ valve replacement:

If your current parts inventory, including vehicles still within your possession, contain SR-7™ valves
manufactured between April 1, 2006 and May 24, 2006, please contact the Bendix Recall Assistance Center at

1-800-478-1793, Monday - Friday, 8:00 a.m. – 5:00 p.m. EST, or send an e-mail to [e-mail] to
arrange for the exchange. The Recall Assistance Center will arrange for the appropriate number of replacement
valves, along with installation instructions (if applicable), to be shipped to you at no cost. At the time of your call,
you will be provided with instructions on how to return the suspect valves to Bendix for proper containment.

SR-7™ Valve Service Replacement

Kit Part Numbers

All SR-7™ valve part numbers are potentially affected by the campaign.

For ease of reference a part number listing of all the OE and Service valves,

with their replacement kit part numbers, is shown here.

OE Part
Number

5010914
5010915

5010916
5010917

5011180
5012045

5012046
5013055
5017233
5012100

5012568
5012472
5012831
5012569 801569 5019468
5012615 801570 5019469
5012616
5016270
5016271
5017103
5015302 802538 5019472

Service Part

Number

801329

801328 50194655012489

801536 5019467

801571 5019470

801898 5019471

Service Replacement

Kit Number

5019466