Loosen the port relief valve (Item 1) [Figure 20-41-57] & [Figure 20-41-58] (Port E1 or F2).
(See Port Relief Valve on Page 20-40-19.)
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 (Item 1) [Figure 20-41-59].
Remove and install new O-rings and check back-up washer from the port relief valve [Figure 20-41-60].
