Operator's Manual Sixth Edition • Third PrintingInspections20 GR-12 • GR-15 • GR-20 Part No. 133572Pre-operation Inspection Be sure that the operator’s, safety andresponsibilities manuals are complete, legibleand in the storage container located in theplatform. Be sure that all decals are legible and in place.See Inspections section. Check for hydraulic oil leaks and proper oillevel. Add oil if needed. See Maintenancesection. Check for battery fluid leaks and proper fluidlevel. Add distilled water if needed. SeeMaintenance section.Check the following components or areas fordamage, improperly installed or missing parts andunauthorized modifications: Electrical components, wiring andelectrical cables Hydraulic power unit, reservoir, hoses,fittings, cylinders and manifolds Battery pack and connections Drive motors Tires and wheels Ground strap Limit switches, alarms and horn Alarms and beacons (if equipped) Nuts, bolts and other fasteners Platform entry mid-rail bar, chain or gate Sequencing cables and pulleys Pothole guards Lanyard anchorage points Platform extension (if equipped) Work trays (if equipped) Brake release components Battery cover Mast columns and counterweight Platform control joystickCheck entire machine for: Cracks in welds or structural components Dents or damage to machine Excessive rust, corrosion or oxidation Be sure that all structural and other criticalcomponents are present and all associatedfasteners and pins are in place and properlytightened.Note: If the platform must be raised to inspect themachine, make sure that the battery cover is inplace. See Operating Instructions section.