16. BRAKE SYSTEM MXU 550EXi/MXU 500i Spring Delay Valve Body Push the piston out with a screwdriver. INSPECTION Check the delay valve body inside wall for scratch, corrosion or other abnormal condition. If any abnormal condition is found, replace the delay valve. Check the spring and piston for scratch, corrosion or other abnormal condition. O-ring Piston If any abnormal condition is found, replace the parts. ASSEMBLY Wash the delay valve components with new brake fluid before reassembly. Do not wipe the brake fluid off with a rag after washing the components. When washing the components, use the specified brake fluid (DOT 4). Never use different types of fluid or cleaning solvents such as gasoline, kerosine, etc. Bolt Apply brake fluid to the delay valve bore and all the component to be inserted to be inserted to the bore. Install the piston. Install the spring. Replace a new O-ring then install and tighten the bolt to the specified torque. Torque: 5 kgf-m (50 N-m, 36 lbf-ft) Piston Spring 16-32