Crane - Work Box Inspection

Has the Work Box been design registered with the regulator?<br>

Work Box must have the working load limit, tare mass and design registration number clearly marked? ( e.g. on a data plate)

Man Box sides must be at least 1 metre high.

Man Box must have rated fall-arrest anchorage points.

Man Box must be correctly tagged.

Lifting slings/gear supplied must be attached to the lifting points by hammerlocks or moussed shackles.

Lifting gear must have a safety factor for each suspension sling of at least eight for chains and 10 for wire rope.

Where provided, a door is to be inward opening only and self-closing with a latch to prevent unintentional opening.

First aid boxes may be provided with outward opening doors for ease of access, but doors are to be self-closing with automatic latches.

Cranes lifting Work Boxes should be equipped with a secondary back-up system that will prevent the load from falling if the primary lifting device fails.

Cranes must have a minimum rated capacity of at least twice the total load of the workbox and its contents at the maximum radius for the task to be performed and not less than 1000 kg.

Cranes must be fitted with an upper hoist limit—anti-two block—that stops operation of the hoist, luff and telescope functions of the crane or be designed so two-blocking cannot damage part of the crane or lifting gear.

Cranes must have levers and foot pedals fitted with a constant pressure system so crane motion stops immediately after the operator removes pressure from the controls.

If the crane is fitted with a free fall facility, this function should be positively locked out to prevent inadvertent activation when lifting <br>a work box.

Rigging equipment is up to date with test and tag?

Pre-use inspections have been completed for rigging gear?

Rigging gear has been set up correctly and fit for purpose?

The Work Box must be securely attached to the crane.

Harnesses should be attached to fall-arrest anchorage points in the work box or to the main sling ring above the heads of the workers.

Directions to the crane operator should only be provided from the workbox by a person holding a dogging or rigging license.

The crane must not travel while suspending a work box.

Workers remain substantially inside the work box while it is lifted or suspended.

Emergency retrieval arrangements must be in place before the lift so workers can safely exit the work box in the event of crane failure or other emergency.