Page 320 - IGC BOOK

Hazards Associated with Maintenance Regimes

• Mechanical: entanglement from rotating parts, ejection from compressed springs, trap in

between moving parts.
• Electrical: high voltage, static electricity may cause electrocution, shocks, and burns.

• Pressure: sudden release of high-pressure steam, gases, or vapours.
• Physical: extreme heat, noise, vibration.

• Chemical: dusts & fibres (e.g. asbestos, silica) flammable corrosive, acids, organic solvents.
• Psychosocial: time pressure, long hour shifts

• Access: work at height, confined spaces.

Maintenance work must be carried out by competent person. Any maintenance on live
equipment are not allowed until the work is carried out with appropriate Permit to work system.
All maintenance records must be maintained.

Precautions Required During Maintenance Work

• Carried out by competent staff

• Isolate power sources and lock out.

• All stored energy must be released – hydraulic, spring, static electricity.
• For live maintenance use insulating materials to cover live power sources, use PPE rubber

gloves, anti-static shoes.
• Take additional precautions when having access to dangerous moving parts.

• Operate machine at slow speed.
• Providing temporary designed to do maintenance work.

• Access precautions and emergency procedures in place for work at height or confined space
entry.

• Avoid manual handling by using handling aids.

Emergency Stop Controls
Work equipment must be provided with one or more
emergency stop controls. Emergency stop controls are
intended to react quickly to a potentially dangerous situation, it
cannot be used as a functional stop during routine operation.

Emergency Stop buttons are red in colour like mushroom head,
with a push in button on a yellow background panel. Pressing
the emergency stop button will stop the machinery operation
and resetting the emergency stop button should not allow
machine to re-start. Emergency Stop Button

ENSIGN | Unit IG2 – Element 9 – Work 4
Equipment