Norelco 4412 Owner's Manual page 6

6.
4 Brush the inside of housing and Razor Head Assembly.
5 Replace the Razor Head Assembly back on razor.
Every Two Months: Razor Heads
1 Turn razor OFF and disconnect from outlet.
2 Remove Razor Head Assembly off housing unit.
3 Brush the inside of the housing.
4 Turn Razor Head Assembly over so that the
underside is exposed.
5 Press down and turn wheel of frame counterclockwise.
6 Remove the frame and brush clean.
7 Remove and clean one cutter and head at a time.
• Be careful not to mix up cutters and heads.They
are a matched set and if interchanged, it will greatly
affect shaving performance.
8 Separate the cutter from the comb.
9 Only brush the cutter in an upward motion.
Use the short bristled side of the brush.
10 Brush the slots of the razor head.
For optimum performance, razor cutters and combs
should be cleaned in a degreasing liquid (e.g. Norelco
Razor Cleaner or alcohol) and lubricated with Norelco
Razor Lubricant, model AL80, or one drop of mineral oil
(in the center of the head).
11 Replace the cutter and razor head in the Head Assembly.
12 Repeat the process for the other two razor heads
(cutters and combs).
13 Replace the frame.
14 Press down and turn the wheel clockwise until it locks
into place.
15 Replace the Razor Head Assembly back on razor.
7.