Part No. 102521 S-40 • S-45 3 - 23October 2013 Section 3 • Scheduled Maintenance Proceduresbrake disengaged positionbrake engaged positionB-10Confirm the ProperBrake ConfigurationGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Proper brake configuration is essential to safeoperation and good machine performance.Hydrostatic brakes and hydraulically-released,spring-applied individual wheel brakes can appearto operate normally when they are actually not fullyoperational.1 Check each drive hub disconnect cap to besure it is in the engaged position.2 Be sure the free-wheel valve on the drive pumpis closed (clockwise).Note: The free-wheel valve is located on thebottom of the drive pump.a drive pumpb screwdriverc lift pumpd free-wheel valveNote: The free-wheel valve should always remainclosed.adcbCHECKLIST B PROCEDURESProperty of American Airlines