An employer shall ensure at a construction site of a building or other construction work that,-
(a) all motors, cogwheels, chains and friction gearing, flywheels, shafting, dangerous and moving parts of machinery (whether or not driven by mechanical power) and steam pipes are securely fenced or lagged ;
(b) the fencing of dangerous parts of machinery is not removed while such machinery is in motion or in use:
(c) no part of any machinery which is in motion and which is not securely fenced is examined, lubricated, adjusted or repaired except by a person skilled for such examination, lubrication , adjustment or repairs;
(d) machine parts are cleaned when such machine is stopped;
(e) when a machine is stopped for servicing or repairs adequate measures are taken to ensure that such machine does not restart inadvertently.