REV BSection 3 • Scheduled Maintenance Procedures June 20073 - 22 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056 Part No. 97487CHECKLIST B PROCEDURESB-8Check the Boom Wear PadsGTH-644, GTH-842 and GTH-844Note: Genie specifications require that thisprocedure be performed every 250 hours ofoperation.1 Extend the boom until the wear pads areaccessible.2 Measure each upper wear pad.Result: The measurement is withinspecification.Result: The measurement is less thanspecification. Replace both wear pads. Refer toRepair Procedure 1-2,How to Replace theBoom Wear Pads.2 Measure each side wear pad.Result: The measurement is withinspecification.Result: The measurement is less thanspecification. Replace all side wear pads. Referto Repair Procedure 1-2,How to Replace theBoom Wear Pads.2 Measure each lower wear pad.Result: The measurement is withinspecification.Result: The measurement is less thanspecification. Replace both wear pads. Refer toRepair Procedure 1-2,How to Replace theBoom Wear Pads.Boom Wear Pad Specifications,GTH-644, GTH-842 and GTH-844Upper wear pad thickness, minimum 9 /16 inch14.3 mmSide wear pad thickness, minimum 3 / 8 inch9.5 mmLower wear pad thickness, minimum 9 /16 inch14.3 mm
