7 - 52 Genie S-80 & Genie S-85 Part No. 34032Service Manual - First EditionSection 7 - Repair Procedures15-3Hydraulic Limit SwitchesThe hydraulic limit switches are 2 position 2 wayvalves. The switches sense full axle extension andallow the boom functions to operate.How to Set Up the Hydraulic LimitSwitch LinkageAdjustment of the hydraulic limitswitch linkage is only necessarywhen the switch or linkage hasbeen replaced or the axle wearpads are worn or have beenreplaced.1 Install the hydraulic switch and connect thehydraulic hoses.2 Install the linkage rod and leave the lock nutloose.3 Use the lift jack to raise the machine.4 Extend the axles completely.5 Lower the machine and turn the linkage rodclockwise until it completely compresses thevalve actuator. Then turn the linkage rodcounterclockwise 1/ 8 inch. Tighten the lock nut.6 Raise the machine.7 Extend and retract both axles through 2 cyclesand check boom functions. If the boom will notraise past the drive limit switch, readjust asnecessary.a lock nutb linkage rodc springd valve actuatore limit switch valvec d eEXTENDABLE AXLE COMPONENTSa b