Part No. 122985 S-80 • S-85 • S-80X 3 - 21Section 3 • Scheduled Maintenance ProceduresFebruary 2012CHECKLIST B PROCEDURESB-3Test the Key SwitchGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Proper key switch action and response is essentialto safe machine operation. The machine can beoperated from the ground or platform controls andthe activation of one or the other is accomplishedwith the key switch. Failure of the key switch toactivate the appropriate control panel could cause ahazardous operating situation.1 Pull out the red Emergency Stop button to theon position at both the ground and platformcontrols.2 Turn the key switch to ground control, start theengine and then turn the key switch to platformcontrol.3 Check all machine function from the groundcontrols.Result: All machine functions should notoperate.4 Turn the key switch to ground control.5 Check all machine function from the platformcontrols.Result: All machine functions should notoperate.6 Turn the key switch to the off position.Result: The engine should stop and no functionsshould operate.B-4Check the Exhaust SystemGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Maintaining the exhaust system is essential togood engine performance and service life. Runningthe engine with a damaged or leaking exhaustsystem can cause component damage and unsafeoperating conditions.Bodily injury hazard. Do notinspect while the engine is running.Remove the key to secure fromoperation.Burn hazard. Beware of hot enginecomponents. Contact with hotengine components may result insevere burns.To access the engine:1 Remove the engine tray retaining fastenerlocated under the engine tray. Swing the enginetray out away from the machine and secure itfrom moving.Crushing hazard. Failure to installthe fastener into the engine trayanchor hole to secure the enginetray from moving could result indeath or serious injury.