3 - 28 S-80 • S-85 • S-80X Part No. 122985Section 3 • Scheduled Maintenance Procedures February 2012CHECKLIST B PROCEDURESB-11Perform Engine MaintenanceEngine specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Proper engine maintenance, following the enginemanufacturer's maintenance schedule, is essentialto good engine performance and service life. Failureto perform the maintenance procedures can lead topoor engine performance and component damage.Required maintenance procedures and additionalengine information are available in the:Deutz TD2011 Operation Manual(Deutz part number 0312 3547) OR thePerkins 804D-33 Operation and MaintenanceManual (Perkins part number SEBU7853-00) ORtheContinental TME27 Owner's Manual(Continental part number WM10303).Deutz TD2011 Operation ManualGenie part number 139320Perkins 804D-33 Operation and Maintenance ManualGenie part number 111332Continental TME27 Owner's ManualGenie part number 111901To 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.B-12Check the Oscillate DirectionalValve LinkageNote: Genie specifications require that thisprocedure be performed every 250 hours orquarterly, whichever comes first.Proper axle oscillation is essential to safe machineoperation. If the oscillate directional valve linkage isnot operating correctly, the stability of the machineis compromised and it may tip over.1 Remove the drive chassis cover from thenon-steer end of the machine.2 Locate the oscillate directional valve inside ofthe non-steer axle and inspect the linkage forthe following:• Lock nut is tight against yoke• Yoke clevis pins are installed• Cotter pins are installed through clevis pins• Linkage is properly attached todirectional valve