4 - 36 Genie S-60 & Genie S-65 Part No. 65196Third Edition • First PrintingSection 4 • Scheduled Maintenance ProceduresTABLE B PROCEDURESB-6Check and Adjust theEngine RPMMaintaining the engine rpm at the proper setting forboth low and high idle is essential to good engineperformance and service life. The machine will notoperate properly if the rpm is incorrect andcontinued use may cause component damage.Gasoline/LPG Models:The engine rpm is controlled bythe ECM and can only be adjustedby re-programming the ECM. Ifrpm adjustment or service isrequired, please contact the GenieIndustries Service Department ORyour local Ford dealer.Gasoline/LPG modelsLow idle 1600 rpmHigh idle 2500 rpmDiesel models:This procedure will require twopeople.1 Connect a tachometer to the engine. Start theengine from the ground controls.Result: Low idle should be 1500 rpm for Deutzmodels, 1600 rpm for Perkins models.Skip to step 4 if the low idle rpm is correct.2 Loosen the low idle lock nut and turn the lowidle adjustment screw clockwise to increase therpm, or counterclockwise to decrease the rpm.Tighten the low idle lock nut and confirm therpm.a solenoid bootb high idle adjustment nutc yoke lock nutd yokee low idle adjustment screwf low idle lock nut3 Move the function enable toggle switch to thehigh idle (rabbit symbol) position.Result: High idle should be 2300 rpm for Deutzmodels, 2200 rpm for Perkins models.If high idle rpm is correct, disregardadjustment step 4.fec dba