Part No. 34032 Genie S-80 & Genie S-85 4 - 37Service Manual - First Edition Section 4 - Scheduled Maintenance ProceduresTABLE C PROCEDURESC-15Check and Adjust the IgnitionTiming - Gasoline/LPG ModelsComplete information to perform this procedure isavailable in the Ford LSG-423 2.3 Liter IndustrialEngine Service Manual (Ford number: 194-216).Genie part number 29586.C-16Check the Engine ValveClearances - Deutz Diesel ModelsComplete information to perform this procedureis available in the Deutz FL 1011 WorkshopManual (Deutz Number 02611642). Genie partnumber 29789.C-17Adjust the Turntable RotationGear BacklashThe turntable rotation torque hub is mounted onan adjustable plate that controls the gap betweenthe rotation motor gear and the turntable bearing.Maintaining proper backlash of the turntablebearing is essential to safe machine operation.Improper backlash could result in an unsafeoperating condition and component damage.See 12-1, How to Adjust theTurntable Rotation GearBacklash.