Designation of nuts (Freelander 1)

Nuts with metric ISO threads and strength index 8, 12 or 14 are designated by applying the index to one of the ends of the nut or to one of the hexagon faces. Some nuts with strength index 4, 5 or 6 also have a strength index designation. Some nuts may be designated by the symbol "M" on the end opposite the end with the strength index. This symbol designates metric threads.



Instead of indicating the strength index, the so-called "clock" method of indicating the strength index is sometimes used. A mark is applied to the outer chamfer or end face of the nut, which corresponds to the readings of the clock hands. The "clock" readings are the designation of the strength index.

A dot is used to indicate the 12 o'clock mark, and a notch is used to indicate the movement of the watch (the value of the strength index). If the strength index is greater than 12, then a double dot is used to indicate the 12 o'clock mark.

When tightening a crown nut that has slots for a cotter pin, never loosen the nut to align the holes for the cotter pin, unless the adjustment instructions so require. If you cannot align the holes for the cotter pin, try replacing the washer or nut, or grinding down the existing washer.



If the bearing preload is adjusted using a nut, the nut must be tightened in accordance with separate instructions.

Self-locking nuts

Self-locking nuts (meaning nuts with a nylon insert or nuts with increased thread friction) can be reused provided that an increase in tightening resistance is felt at the moment the insert portion of the nut begins to tighten.

НЕ use heat to try to loosen a nut or bolt that is difficult to remove. This not only damages the protective coating, but also risks damaging electronic equipment and brake pads from excessive heat.

When removing self-locking nuts, it is recommended to replace them with new ones of similar design.

If the bearing preload is adjusted using a nut, the nut must be tightened in accordance with separate instructions.