Backpad D B A H F E C G Overall MLW Upper MLW Lower MLW Reserve riser Chest strap Upper leg strap Lower leg strap Horizontal back strap A A B C D E F G H and sewing over them results in a poor appearance. Also, it is  not uncommon to find additional damage or wear at this point  that was not identified during the initial inspection process. After the teardown and cleanup, the replacement webbing can  be measured, cut, and pre-sewn in preparation for installation  to the harness assembly. The construction sequence is  followed. In certain cases, it may be desirable to replace not  just damaged parts but worn ones to give the final result a  more cosmetic appearance. An example is when replacing  a main lift web, it does not look good to reuse the old chest  strap webbing when the main lift web is new material. After the repair is completed, a thorough quality control  program is undertaken. This is especially critical in a  situation where the rigger is working alone and there is no  one to rely on for crosschecking the work. All the critical  points of the repair must be identified and checked as well  as the finished dimensions. Step Three Step Four Procedure Disassembly 3.  Lay out the main lift web assembly and check the  measurements against the initial dimensions. Check  against the opposite side MLW for symmetry. 1.  Remove all housings, leg pads, and any other parts  that may interfere with the work from the harness.  Disassemble the leg strap/horizontal back strap  junction.  [Figure B]  Disconnect the upper MLW from  the yoke portion of the backpad if necessary. 2.  Disassemble the junction of the diagonal back strap  and main lift web at the 3-ring attachment point.  [Figure C]  Be very careful not to damage the diagonal  back strap. If it is damaged, it is a major project to  replace this on most assemblies. 7-59