3 - 140 S-100 • S-105 • S-120 • S-125 Part No. 1268494March 2017Section 3 • Repair Procedures13-6Extendable AxlesThe extendable axles are used to widen the footprint of the drive chassis for stability.How to Shim an Extendable AxleNote: Measure each wear pad. Replace the wearpad if it is less than 7/16 inch / 11 mm thick.If the wear pad is 7/16 inch / 11 mm thick or more,perform the following procedure.1 Fully extend the axle.2 Remove the wear pad retaining fasteners.Side wear pads:3 Install the new shims under the wear pad toobtain zero clearance and zero drag.4 Use a round punch through the wear padmounting holes to align the shims with the wearpad. Install the wear pad retaining fasteners.5 Extend and retract the axle through an entirecycle. Check for tight spots that could causebinding or scraping of the axle tubes.Note: Always maintain squareness between theinner and outer axle tubes.Top and bottom wear pads:3 Center a lifting jack of ample capacity under theaxle that needs to be shimmed. Do not raisethe machine.4 Block the wheels at the opposite end of themachine.5 Raise the machine just until the weight of themachine is relieved off of the axle. Do not raisethe wheels off of the ground.6 Install the new shims under the wear pad toobtain zero clearance and zero drag.7 Use a round punch through the wear padmounting holes to align the shims with the wearpad. Install the wear pad retaining fasteners.8 Extend and retract the axle through an entirecycle. Check for tight spots that could causebinding or scraping of the axle tubes.Note: Always maintain squareness between theinner and outer axle tubes.AXLE COMPONENTS
