Brake System Bleeding

The anti-lock brake system must be bled anytime air is permitted to enter the hydraulic system due to disconnection of components for service. It is important to note that excessive air in the brake system may set a primary pressure fault in the CAB.

Pressure or manual bleeding procedures can be used when bleeding the ABS system after hoses or brake lines have been disconnected. Bleeding the ABS hydraulic system is also necessary after replacement of the hydraulic assembly or wheel brakes. During bleeding procedures, ensure the brake fluid level remains close to the Full lever.

The brake lines may be pressure bled, using a standard diaphragm type pressure bleeder. Only diaphragm type pressure bleeding equipment should be used to prevent air, moisture and other contaminants from entering the system. Bleeding the system manually requires two persons. One to pump the brake pedal and the other to bleed each wheel.

Perform bleeding procedure in the following order:

1. Left rear.
2. Right rear.
3. Left front.
4. Right front.