(1) Chain brake: A portable power chain saw shall be equipped with a chain brake and with a device to operate the brake.
(2) Vibrations: A portable power chain saw shall be equipped with a vibration insulation system on the front and back handles, designed and manufactured in such a way so that the operator’s control of the chain saw is not affected if an insulator happens to fail.
(3) The employer shall ensure that the user of a chain saw:
(a) starts the saw only when it is on a solid surface more than 3 m away from the place where it was filled with gas;
(b) uses his saw while holding it with both hands and with his feet solidly set;
(c) does not use the saw higher than shoulder level;
(d) does not use his saw inside a closed building if the saw has an internal combustion motor;
(e) stops the chain when he goes from one work site to another; and
(f) adjusts and oils the saw only when the motor is stopped.