OPERATIONAL PERFORMANCE TEST / Component Test ZX180- 3 class Loosen lock nut (2) and adjust pressure by using ad- justing screw (1). 1. Loosen lock nut (2). Swing Relief Valve : 24 mm, 32 mm 2. Turn adjusting screw (1) in order to adjust pres- sure. 3. Tighten lock nut (2). : 24 mm, 32 mm : 177 N m (18 kgf m) 4. Check the set pressure. NOTE: Standard Change in Pressure (Reference) 1 Change in (1450) 10.0 (102) T1V1-03-02-003 T107-02-04-020 1 Pressure Increase Pressure Decrease T157-05-04-023 T4-5-14 1/4 1/2 3/4 MPa (kgf/cm2) (psi) 2.5 (25.5) (363) 5.0 (51) (725) 7.5 (76.5) (1088) 1 2