User's Manual

Bulletin No: TCH-002-014 Effective Date: 2/2/2012 Cancels: N/A Page: 2 of 2

Subject: Bendix

Air Disc Brake Actuator Vent Hole Orientation

Action: Vehicles with Bendix

brand air disc brake actuators should be inspected to verify that the vent

hole closest to the bottom of the actuator is open. If a plug is found in this location, it must be removed to allow

proper draining. The removed plug can be discarded. It is not necessary to place it in the other open port. Removal

of the plug is easily completed by pulling it out with a pair of needle nose pliers. Note that the removal of this plug

will not impact the actuator warranty.

Since testing has shown that having more than one vent open does not impact either performance, or the life of

the product, the plugs are being removed from all Bendix air disc brake actuator designs. This will eliminate the

possibility of water and contaminants collecting in the actuators, reduce part numbers and inventories, and make

servicing the actuators easier.

All 6 Vent Holes -

Open

New OE and Aftermarket

Air Disc Brake Actuator Design

If you have questions regarding this bulletin, please call the

Bendix Tech Team at 1-800-AIR-BRAKE (1-800-247-2725).

Representatives are available Monday - Friday, 8:00a.m. - 6:00p.m. E.T.