REWORK Remove dirt off from seal ring counter bore with sand grinder. # Dirt may enter the edge of counter bore and remain. It must be removed completely. 5) Make master link mating surface smooth with sand grinder. # Do not damage the mating surface and thread. 6) Remove dirt and rust on shoe mating surface with sand grinder. 2. Bushing Make bushing press-fitting portion smooth with sand grinder if it is required. - 16 -