On new machines interlocks are fitted to enclosure access doors that cut power, stop the feed and apply brakes. What is the standard for older machines?
On older machines fitted with a “wooden box” type enclosure simple locks and bolts will not prevent access to the enclosure with the machine running unless braking has been fitted and employees are trained and instructed to operate the brake and stop the machine before entering. As a standard, machines should have an enclosure and braking should be fitted. In some cases interlocks on doors linked to the braking may also be beneficial. However, this will be dependant on the machines characteristics and system of work that must be employed with it, particularly for setting (see Q.3).
