Brake Proportioning/Combination Valve: Testing and Inspection

Inspection

CAUTION:
^ Carefully monitor brake fluid level at master cylinder.
^ Use new brake fluid "DOT 3".
^ Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed on paint areas, wash it away with water immediately.





1. Connect Tool to air bleeders of front and rear brakes on either LH and RH side.





2. Bleed air from the tool.
3. Check fluid pressure by depressing brake pedal.





If output pressure is out of specification, replace dual proportioning valve.
4. Bleed air after disconnecting the Tool.