March 2016 Service ManualChecklist B ProceduresPart No. 123701 GTH-1048 • GTH-1056 29B-6 Per form Hy draulic Oil AnalysisB-6Perform 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-7 Ins pect the F uel and Hy draulic T ank C ap Venting SystemsB-7Inspect the Fuel and HydraulicTank Cap Venting SystemsGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Perform this procedure more often if dustyconditions exist.Free-breathing fuel and hydraulic tank caps areessential for good machine performance andservice life. A dirty or clogged tank cap may causethe machine to perform poorly and continued usemay cause component damage. Extremely dirtyconditions may require that the caps be inspectedmore often.Explosion and fire hazard.Engine fuels are combustible.Perform this procedure in anopen, well-ventilated area awayfrom heaters, sparks, flames andlighted tobacco. Always have anapproved fire extinguisher withineasy reach.Note: Perform this procedure with the engine off.1 Remove the fuel filler cap from the tank.2 Check for proper venting.Result: Air passes through the fuel tank cap.Proceed to step 4.Result: If air does not pass through the cap,clean or replace the cap. Proceed to step 3.Note: When checking for positive tank cap venting,air should pass freely through the cap.Courtesy of Crane.Market
