3 - 34 S-80 • S-85 • S-80X Part No. 122985Section 3 • Scheduled Maintenance Procedures February 2012CHECKLIST B PROCEDURESB-20Test the Drive Speed -Raised or Extended PositionGenie specifications require that this procedure beperformed every 250 hours or quarterly, whichevercomes first.Proper drive function movement is essential to safemachine operation. The drive function shouldrespond quickly and smoothly to operator control.Drive performance should also be free of hesitation,jerking and unusual noise over the entireproportionally controlled speed range.Select a test area that is firm, level and free ofobstructions.1 Create start and finish lines by marking two lineson the ground 40 feet / 12.2 m apart.2 Start the engine from the platform controls.3 Move the engine idle select toggle switch tofoot switch activated high idle (rabbit and footswitch symbol).4 Press down the foot switch and raise the boom10° above horizontal.5 Choose a point on the machine (i.e. contactpatch of a tire), as a visual reference for usewhen crossing the start and finish lines.6 Bring the machine to top drive speed beforereaching the start line. Begin timing when yourreference point on the machine crosses thestart line.7 Continue at full speed and note the time whenthe machine reference point crosses the finishline. Refer to Section 2,PerformanceSpecifications.Note: To adjust the speed, refer to Repairprocedure 1-2,How to Adjust the Joystick Max-outSetting.8 Press down the foot switch and lower the boomto the stowed position.9 Extend the boom 3 feet / 90 cm.10 Choose a point on the machine (i.e., contactpatch of a tire), as a visual reference for usewhen crossing the start and finish lines.11 Bring the machine to top drive speed beforereaching the start line. Begin timing when yourreference point on the machine crosses thestart line.12 Continue at top speed and note the time whenthe machine reference point crosses the finishline. Refer to Section 2,PerformanceSpecifications.Note: To adjust the speed, refer to Repairprocedure 1-2,How to Adjust the Joystick Max-outSetting.
