February 2017 Service ManualOscillating Axle ComponentsPart No. 1259369GT S-80 • S-85 • S-80X 145How to Set U p the Direc tional Valve Li nk ageHow to Set Up the DirectionalValve LinkageNote: Perform this procedure on a firm, levelsurface.1 Lower the boom to the stowed position.2 Use a "bubble type" level to be sure thesurface the machine is on is completely level.Tip-over hazard. Failure toperform this procedure on afirm, level surface willcompromise the stability of themachine and could result in themachine tipping over.3 Check the tire pressure in all four tires and addair if needed to meet specification.4 Remove the drive chassis cover from thenon-steer end of the machine.5 Disconnect the linkage clevis yoke from theaxle.6 Place a "bubble type" level on the turntablerotate bearing plate at the non-steer end.Confirm whether the drive chassis iscompletely level.7 If the drive chassis is not level, start the engineand push up or pull down on the linkageadjustment rod until the machine is completelylevel.8 Verify that the ground and drive chassis arecompletely level.9 Loosen the jamb nuts and adjust the length ofthe rod by turning the clevis yoke until theclevis yoke can be pinned to the axle.10 Install the cotter pin and tighten the jamb nuts.11 Measure the gap between the drive chassisand the non-steer axle on both sides (from theinside of the drive chassis).Result: The measurements should be equal.Note: The gap on both sides should be between0.150 inch / 0.381 cm and 0.170 inch / 0.432 cm.12 Add or remove shims between the oscillationstop bar and the drive chassis to achieve theproper gap.
