Service Manual April 2016Checklist B Procedures32 Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N Part No. 139378B-14Perform Hydraulic Oil AnalysisGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Replacement or testing of the hydraulic oil isessential for good machine performance andservice life. Dirty oil and a clogged suction strainermay cause the machine to perform poorly andcontinued use may cause component damage.Extremely dirty conditions may require oil changesto be performed more often. For hydraulic oilspecifications, Refer to Specifications, HydraulicSpecifications.Note: Before replacing the hydraulic oil, the oil maybe tested by an oil distributor for specific levels ofcontamination to verify that changing the oil isnecessary. If the hydraulic oil is not replaced at thetwo year inspection, test the oil quarterly. Replacethe oil when it fails the test. Refer to MaintenanceProcedure, Test or Replace the Hydraulic Oil.B-15Test the Emergency PowerSystemGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Testing the emergency power system regularly isessential to safe machine operation if the primarypower source fails.1 Turn the key switch to ground control and pullout the red Emergency Stop button to the onposition at both the ground and platformcontrols.2 At the ground controls, break the security tieand lift the emergency power switch cover (ifequipped).3 Simultaneously hold the emergency powerswitch on and activate each boom functiontoggle switch.Note: To conserve battery power, test eachfunction through a partial cycle.Result: All boom functions operate.4 Close the emergency power switch cover andsecure the cover with a security tie (ifequipped).