4 - 38 Z-45/25 Bi-Energy • Z-45/25J Bi-Energy Part No. 237062September 2015Section 4 • Repair Procedures9-2Valve Adjustments -Function ManifoldHow to Adjust the SystemRelief ValveNote: Perform this procedure with the boom in thestowed position.1 Connect a 0 to 5000 psi / 0 to 350 bar pressuregauge to the test port on the function manifold.2 Move and hold the function enable toggle switchto either side and hold the primary boomextend/retract toggle switch in the retractdirection with the primary boom fully retracted.Observe the pressure reading on the pressuregauge. Refer to Section 2,Specifications.3 Turn the machine off. Hold the system reliefvalve with a wrench and remove the cap(item O).4 Adjust the internal hex socket. Turn it clockwiseto increase the pressure or counterclockwise todecrease the pressure. Install the relief valvecap.Tip-over hazard. Do not adjustthe relief valve higher thanspecified.5 Repeat steps 2 through 4 and recheck reliefvalve pressure.MANIFOLDSHow to Adjust the SecondaryBoom Down Relief ValveNote: Perform this procedure with the boom in thestowed position.1 Connect a 0 to 5000 psi / 0 to 350 bar pressuregauge to the test port on the function manifold.2 Move and hold the function enable toggle switchto either side and hold the secondary boomup/down toggle switch in the down directionwith the secondary boom fully lowered.Observe the pressure reading on the pressuregauge. Refer to Section 2,Specifications.3 Turn the machine off. Hold the secondary boomdown relief valve with a wrench and removethe cap (item W).4 Adjust the internal hex socket. Turn it clockwiseto increase the pressure or counterclockwise todecrease the pressure. Then install the reliefvalve cap.Tip-over hazard. Do not adjustthe relief valve higher thanspecified.5 Repeat steps 2 through 4 and recheck reliefvalve pressure.
