Part No. 122985 S-80 • S-85 • S-80X 3 - 37Section 3 • Scheduled Maintenance ProceduresFebruary 2012CHECKLIST B PROCEDURESB-23Perform 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 suction strainers maycause the machine to perform poorly and continueduse may cause component damage. Extremelydirty conditions may require oil changes to beperformed more frequently.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 atthe two year inspection, test the oil quarterly.Replace the oil when it fails the test.B-24Inspect the BoomExtend/Retract CablesGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.The boom extend/retract cables are responsible forthe extension and retraction of the number 3 boomtube. Inspecting for foreign objects, damage and/orimproper adjustment of the boom extend/retractcables and related components on a regular basisis essential to good machine performance and safemachine operation. The boom extend and retractfunctions should operate smoothly and be free ofhesitation, jerking and unusual noise.1 Raise the boom to horizontal and fully extendthe boom.2 After the boom is fully extended, lower the boomuntil the platform is at chest height. Turn themachine off.3 Remove the boom end cover retaining fastenersand remove the cover.4 Remove the retaining fasteners from the accesscovers located on the side of the boom at theplatform end of the machine. Remove thecovers.