Loosen the port relief valve (Item 1) [Figure 20-40-58](Port E1).
Installation: Always use new O-rings and back-up washers. Tighten to 35-40 ft.-lbs. (47-54 Nm) torque.
Remove the port relief valve.
Remove the O-rings and back-up washer from the port relief valve [Figure 20-40-59].
