REV BSection 4 • Repair Procedures4 - 24 GS-3384 Part No. 82259September 2005SCISSOR COMPONENTS3-2Wear PadsHow to Replace the Scissor ArmWear PadsPlatform Scissor Arm Wear Pads:1 Place a lifting strap from an overhead craneunder the platform at the steer end of themachine for support. Do not attach the liftingstraps from the overhead crane to the platformrailings.2 Place a lifting strap from a second overheadcrane under the platform at the non-steer end ofthe machine for support. Do not attach thelifting straps from the overhead crane to theplatform railings.3 Lift the platform slightly using the overheadcranes just enough to take the pressure off theplatform slide block pivot pins.4 Remove the pin retaining fasteners from eachplatform centering link pivot pin at the platform.5 Place a rod through each platform centering linkpivot pin and twist to remove the pin. Rest thecentering links on the scissor arms.6 Remove the pin retaining fasteners from eachplatform slide block pivot pin. Do not removethe pins.7 Use a slide hammer to remove each platformslide block pivot pin.Crushing hazard. The platform willfall when the platform slider blockpivot pins are removed if notproperly supported by theoverhead cranes.8 Move each slide block towards the center of theplatform and carefully remove each platformslide block from the platform.9 Remove the retaining fasteners from the wearpads on the slide blocks. Remove the wearpads.10 Install the new wear pads onto the scissor armslide blocks.11 Install the slide blocks onto the platform.12 Align the holes in the slide blocks with the holesin the scissor arms.13 Install the slide block pivot pins and the pinretaining fasteners.14 Attach the platform centering links to theplatform and install the platform centering linkpivot pins and the pin retaining fasteners.
