Factors that Affect Sewer Main Repair Costs. When the cause of the broken sewer line is tree roots, it is possible that the tree may need to be removed in order to excavate the sewer line and repair it. Tree removal can add thousands of dollars to the sewer main repair project.
Steps. 1  1. Choose your guard size. 2  2. Dry your hair. 3  3. Hold the clipper with the blades down and work against the direction of your hair's growth, so you can catch more hair with the guard.  4. Take care not to go too fast so you don't tug on the hair or hit your 1  scalp. 5. Remove the guard and turn the clipper over in your hand.
Instructions. Unscrew the screws connecting the blade to the body of the Oster clipper, using a screwdriver, and remove the blade from the clipper. Remove all hair, dust and residue from the clippers by spraying them with an air compressor.Position the new blade on the clipper and hold it in place with your hand.Insert the screws in the holes and tighten them with a screwdriver. Turn the clipper on to confirm that you installed the new blade properly.emove all hair, dust and residue from the clippers by spraying them with an air compressor. Position the new blade on the clipper and hold it in place with your hand. Insert the screws in the holes and tighten them with a screwdriver. Turn the clipper on to confirm that you installed the new blade properly.