RISK – Crushing injury. Becoming trapped when working in and around structures

Examples of SPDs include fixed cages, side protection barriers, Operator protective structures, pressure sensing bars, break aware bars and pressure sensing control panels.

Scissor lifts required to move through doorways must have detachable control units.

When Maneuvering scissor lifts through doorway,  use a scissor lift with detachable control units with an umbilical cord long enough to allow safe stand off for personnel during operation.  A spotter is also required on the opposite side of the door.

The need to use a mobile elevating work platform (MEWP) in or around overhead/complex structures is to be risk assessed during the development of the Workplace Risk Assessment (WRA) and Activity Method Statement (AMS). Consideration should be given to:

• The sequencing of the works to avoid the presence of obstructions
• Adopting alternative working methods (e.g. scaffold)

There is no single solution to completely eliminate the risk of entrapment in all work environments.  All boom type MEWPs must be fitted with a SPD to reduce the risk of the operator becoming trapped or crushed.

Types of SPDs are outlined below.

Full Cage Structure

Physical Barrier.

Side Protection Barriers

Physical Barrier.

Operator Protective Structure

Physical Barrier.

Pressure Sensing Bar

When activated, this pressure sensing device stops further movement and activates audible and visual warning devices.

Break Away Bar

When activated, this pressure sensing device stops immediate boom movement, activates audible and visual warning devices, and limits further platform movement.

Pressure Sensing Control Panel

When activated, this pressure sensing device stops further movement and activates audible and visual warning devices.

If working near complex or overhead structures is unavoidable, the following steps must be taken:

1. Review the work to be completed and the surrounding environment (e.g. access and ground conditions)
2. Conduct an assessment to determine the most appropriate MEWP for the task
3. Plan MEWPs access for the work area
4. Conduct a risk assessment for the work being conducted
5. Appoint a trained rescue person / spotter
6. Develop an emergency rescue plan and train personnel
7. Conduct periodic rescue drills and audit compliance

Ensure boom type MEWPs have secondary protection devices fitted.

Related GMRs

1.5 Verify all plant is fit for purpose and safe to operate prior to coming to site

1.A Only operate plant, machinery or vehicles, if you hold the applicable license, have been verified as competent (if required), and have completed a daily pre-start check of the equipment

Related Procedures / Forms

Work at Height Procedure