REV DSection 3 • Scheduled Maintenance Procedures3 - 26 GS-3384 Part No. 82259September 2005B-9Check the Oil Level inthe Drive HubsFailure to maintain proper drive hub oil levels maycause the machine to perform poorly andcontinued use may cause component damage.1 Drive the machine to rotate the hub until theplugs are located one on top and the other at90 degrees.CHECKLIST B PROCEDURESB-10Test the Key SwitchProper key switch action and response is essentialto safe machine operation. The machine can beoperated from the ground or platform controls andthe activation of one or the other is accomplishedwith the key switch. Failure of the key switch toactivate the appropriate control panel could causea hazardous operating situation.1 Pull out the red Emergency Stop button to theon position at both the ground and platformcontrols.2 Turn the key switch to ground controls and startthe engine.3 Check any machine function from the platformcontrols.Result: The machine functions should notoperate.4 Turn the key switch to the off position.5 Turn the key switch to platform controls andstart the engine.6 Check any machine function from the groundcontrols.Result: The machine functions should notoperate.7 Turn the key switch to the off position.Result: The engine should stop and nofunctions should operate.a drive hub plugs2 Remove the plug located at 90 degrees andcheck the oil level.Result: The oil level should be even with thebottom of the side plug hole.3 If necessary, remove the top plug and add oiluntil the oil level is even with the bottom of theside plug hole. Refer to Section 2,Specifications.4 Apply pipe thread sealant to the plug(s), andthen install the plug(s) in the drive hub.5 Repeat this procedure for each drive hub.aa
