802911 | Genuine Bendix® Dual Circuit Foot Brake Valve E-6® Series

1. Control Braking Force

The foot brake valve:

• Converts pedal movement into controlled air pressure

• Sends that air to the brake chambers

• Allows the driver to control how hard the brakes apply

More pedal pressure = more air pressure = stronger braking.

2. Distribute Air to Multiple Circuits

Most modern systems use a dual-circuit foot brake valve, which:

• Separates the primary and secondary air systems

• Provides redundancy for safety

• Ensures braking still works if one circuit fails

3. Release Brakes Properly

When the pedal is released:

• The valve exhausts air from the brake chambers

• The brakes release smoothly

4. Maintain Safety in Air Brake Systems

The foot brake valve:

• Prevents sudden air loss

• Maintains balanced braking

• Works with ABS and other safety systems

• Helps prevent brake lock-up (with ABS support)

1. Air Leaking From the Valve

• Hissing sound near the brake pedal

• Air leaking when pedal is pressed or released

• Continuous leak that doesn’t stop

 This is one of the most common failure symptoms.

2. Slow Brake Response

• Delay between pressing the pedal and brakes applying

• Spongy or inconsistent pedal feel

This can indicate internal valve wear or sticking components.

3. Brakes Not Releasing Properly

• Vehicle feels like brakes are dragging

• Brakes stay partially applied after releasing pedal

• Overheating brake drums/rotors

The exhaust side of the valve may not be venting air correctly.

4. Uneven Braking

• Vehicle pulls to one side

• Inconsistent brake pressure between circuits

Could indicate internal imbalance in a dual-circuit valve.

5. Low Air Pressure Warnings

• Dash warning light or buzzer

• Air pressure drops excessively when braking

A faulty valve may leak internally and drain air tanks.

6. Brake Pedal Feels Abnormal

• Too hard

• Too soft

• Doesn’t return properly