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Boom & AttachmentsXR620/621/842/1045/1245/1254/1267/1534/2050/303410-12 MEASURE FORK FLANK WEAREVERY 1,000 HOURS OFOPERATIONPerform the following procedure to measure flank wear:PersonnelSpecial tools and equipment– TASK REQUIREMENTS –One mechanicSafety glassesFork caliperParts and consumable materials Danger tags (2)INITIAL SET-UP1. Park forklift on level surface.2. Set Travel Select lever to NEUTRAL (N).3. Set Parking Brake switch to ON.4. Retract boom and lower carriage until forks are about 36" above ground.5. Set Ignition switch to OFF.6. Attach danger tags to steering wheel and ignition key. Refer to para. 2-5, for lockout-tagoutprocedure.NOTE: Fork calipers are calibrated by first measuring the fork shank thickness. On anew fork, the shank and the flank are the same thickness. The fork flank is subject tocontinuous wear during normal forklift operation. Therefore, comparing the thickness ofthe flank to the thickness of the shank is an accurate method for gauging flank wear.NOTE: In accordance with ASME B56.1, forks must be removed from service if flankwear is equal to or greater than 10 percent. A 10 percent reduction in flank thicknessreduces load-carrying capacity by 20 percent.MEASURING FLANK WEAR1. To calibrate calipers, measure shank (View A) thickness. Set top jaws of caliper by measuring thethickness of the shank. Ensure that the caliper is held square across the shank for an accuratereading. The caliper is now set to measure the fork blade.2. To check flank thickness, position the bottom jaws of the caliper over the flanks of the fork.3. If inside jaws of caliper hit fork (View B), the fork has less than 10% wear and can remain in service.4. If inside jaws of caliper pass over the fork arm (View C), fork must be taken out of service.Service Manual Rev 01 – 05/10 10-26P/N 24933-000