REV DSection 3 • Scheduled Maintenance ProceduresPart No. 82259 GS-3384 3 - 23September 2005a bcdf eB-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.The on-board self diagnosticsincorporate a built-in enginetachometer. The first two digits ofthe engine RPM are displayed onthe diagnostic display when thestart toggle switch is moved to theSTART position with the enginerunning. Engine RPM equals thefirst two digits multiplied by 100.Perform this procedure afterwarming the engine to normaloperating temperature.Ford and GM 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.Deutz models:1 Start the engine from the ground controls.2 Before serial number GS8403-40213: Moveand hold the start toggle switch to the startposition and check the engine RPM on thediagnostic display. Refer to Section 2,Specifications.After serial number GS8403-40212: Pressand hold the start button and check the engineRPM on the diagnostic display. Refer to Section2, Specifications.Skip to step 6 if the low idle rpm is correct.3 Release the latches on the engine tray and fullyslide the engine tray out.4 Insert a 6 inch / 15 cm screwdriver or rod intothe engine tray lock hole located near theengine tray roller wheels to prevent the enginetray from moving.5 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 repeat step 2.Deutz models with throttle linkagea low idle adjustment screwb low idle lock nutc yoked yoke lock nute high idle adjustment lock nutsCHECKLIST B PROCEDURES
