Page 334 - IGC BOOK

Hold -To-Run Device

Hold-to-run device requires the operator to hold a button or foot pedal to ‘run’ an equipment,
for example lawn mower. To operate it is essential to hold-to-run, releasing the button stops the
machine, the device is located away from the danger area to prevent operator accessing to the
moving parts without releasing the button.

Advantages Limitations

• Protects operator from danger • Protects only operator not others
• Safe distance between operator and hazard • Residual movement of dangerous parts
when the controls are released.

Emergency Stop Controls

The aim to provide a swift response to a dangerous situation, they should not be used as a
functional stop control during normal operations. It should be located at convenient locations
and easily accessible by the operator or others.
Advantages Limitations

• Isolate power supply • May not prevent access to dangerous
• Prevents accident restart parts.
• Releasing does not restart machine • Operator may not be able to access if he is
trapped.

Protective Appliances

Push Stick

ENSIGN | Unit IG2 – Element 9 – Work 18
Equipment