Part No. 34032 Genie S-80 & Genie S-85 4 - 5Service Manual - First Edition Section 4 - Scheduled Maintenance ProceduresTABLE A PROCEDURESA-10Test the Extendable AxlesProper axle extention is essential to safe machineoperation. If the axle extention system is notoperating correctly, the stability of the machine iscompromised and it may tip over.1 Start the engine from the ground controls.2 Activate the steer axle drive chassis lift jackcylinder.Result: The cylinder should extend and thedrive chassis should raise smoothly, free ofhesitation.3 Continue holding the chassis jack in theextended position and extend the steer axle.Result: The cylinder should extend and thesteer axle should extend smoothly, free ofhesitation.4 Return the chassis jack control handle to theneutral position.Result: The lift jack cylinder should fully retractwhen the control handle is returned to neutral.5 Activate the non-steer axle drive chassis liftjack cylinder.Result: The drive chassis should raisesmoothly, free of hesitation.6 Continue holding the chassis jack in theextended position and extend the non-steeraxle.Result: The non-steer axle should extendsmoothly, free of hesitation.7 Return the chassis jack control handle to theneutral position.Result: The lift jack cylinder should fully retractwhen the control handle is returned to neutral.A-9Check the Tire PressureThis procedure does not needto be performed on machinesequipped with the foam-filledtire option.An over-inflated tire can explodeand may cause death or seriousinjury.To safeguard maximum stability, achieveoptimum machine handling and minimize tirewear, it is essential to maintain proper pressurein all air-filled tires.1 Check each tire with an air pressure gauge andadd air as needed.Tire specificationsTire size 15-22.5 SATPressure 100 psi6.89 bar