To remove the blade set: Make sure to have the trimmer in the off position and unplug the trimmer from the electrical source. Turn the trimmer upside down so that the teeth of the trimmer are facing down. Put the trimmer on a flat surface and with a hexagonal screwdriver, unscrew the fastening screws from the blade set. Remove the blade set from the trimmer.

To replace/install blade set: align the hole in the smaller clade/cutter and center over nylon roller/ball of the trimmers tension spring. Holding the blade in place, refasten the blade screws and tighten loosely. Turn the trimmer over and align the blade set parallel to the trimmers upper housing. Make sure the blades are aligned properly. The teeth of the smaller blade/cutter should rest slightly below the upper edge of the larger blade/comb about 1/16" to 1/32" apart. If the blades are not correctly aligned, they can cut or scratch your skin while trimming. Once the blades have aligned, tighten the screws firmly.