REV CSection 4 • Repair Procedures June 20054 - 26 TMZ-34/19 Part No. 520755 Starting at the upper corners of the touch pad,remove all layers of the touch pad from thecontrol box lid.The wire harness and large blueconnector will interfere if removingthe touch pad from the bottom.6 Pull the large blue connector through the slot inthe control box lid and discard the old touchpad. Remove any remaining sealant from theslot.7 Using a mild solvent, clean the surface of thecontrol box lid. Allow the surface to dry.Component damage hazard. Thecircuit board will become damagedif it comes in contact with solvent.Do not allow solvent to contact thecircuit board.8 Remove all the brown backing material from thenew touch pad.9 Insert the large blue connector from the newtouch pad through the slot. Carefully align thebattery power LED on the control box lid withthe window in the new touch pad and lightly laythe touch pad onto the control box lid.Repositioning the touch pad ispossible if the touch pad is lightlyadhered to the lid. Do not applyany pressure to the touch pad.10 When satisfied with the position of the touchpad, firmly press down the entire surface of thetouch pad with your fingers.11 Loosen the control box lid retaining fastenersand open the lid.12 Using RTV-type sealant, completely seal theopening in the slot of the control box lid aroundthe wire harness.13 Apply dielectric grease to the pins on the circuitboard at the connection marked KEYPAD.14 Install the large blue connector onto the circuitboard pins at the connection marked KEYPAD .Slide the connector parallel to the circuit boarduntil the connector is pushed onto the circuitboard pins no less than 0.2 inch / 5 mm.Be sure all pins are in theconnector.15 Install the lid onto the control box and tightenthe retaining fasteners. Do not overtighten.GROUND CONTROLS800-610-4101ActionRental.com
