OPERATIONAL PERFORMANCE TEST / Component Test Overload Relief Valve Pressure Adjustment Pro- cedure NOTE: In principle, adjust the overload relief valve pressure on a test stand. Loosen lock nut (1) and adjust pressure by using ad- justing screw (2). 1. Loosen lock nut (1). 1 : 17 mm 2. Turn adjusting screw (2) in order to adjust pres- sure. : 6 mm 2 3. Tighten lock nut (1). : 17 mm W107-02-05-128 : 29.5 N m (3.0 kgf m, 22 lbf ft) 4. Check the set pressure. 2 Pressure Decrease Pressure Increase W107-02-05-129 T4-5-17 NOTE:
Standard Change in Pressure (Reference) Adjusting Screw (2) Turns 1/4 1/2 3/4 1 Change in Pressure MPa (kgf/cm2) (psi) 5.2 (54) (770) 10.6 (108) (1540) 15.9 (162) (2300) 21.1 (216) (3070)