Part No. 34032 Genie S-80 & Genie S-85 7 - 37Service Manual - First Edition Section 7 - Repair Procedures10-2Valve Adjustments -Function ManifoldHow to Adjust the MainRelief ValvePerform this procedure with the boom in thestowed position.1 Connect a 0 to 5000 psi (0 to 345 bar) pressuregauge to the test port (item 23) on the functionmanifold.2 Start the engine from the ground controls.3 Hold the retract switch with the boom fullyretracted, and observe the pressure reading onthe pressure gauge.4 Turn the engine off. Use a wrench to hold therelief valve and remove the cap (item 24,function manifold).5 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 valves higher thanrecommended.6 Restart the engine. Hold the retract switch withthe boom fully retracted, and recheck the valvepressure.Main relief valve specificationsPressure 3000 psi207 barFUNCTION MANIFOLDSHow to Adjust the Boom DownRelief ValvePerform this procedure with the boom in thestowed position.1 Connect a 0 to 5000 psi (0 to 345 bar) pressuregauge to the test port (item 23) on the functionmanifold.2 Start the engine from the ground controls.3 Hold the boom down switch with the boom fullylowered, and observe the pressure reading onthe pressure gauge.4 Turn the engine off. Use a wrench to hold therelief valve and remove the cap (item 14,function manifold).5 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 valves higher thanrecommended.6 Restart the engine. Hold the boom down switchwith the boom fully lowered and recheck thevalve pressure.Boom down relief valve specificationsPressure 2300 psi159 bar
