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 JIB CRANE INSTALLATION, TESTING & COMMISSIONING

A trained professional should only carry out installation of Jib Cranes and Swing Jibs. This post will guide you through the step-by-step process of how the install of a basic floor mounted free standing Jib Crane is carried out.

Firstly the area where the crane is to be located will be inspected, the floor is checked for any signs of weakness and serious cracking, the area is then swept clean ready for drilling. The floor is then drilled in the same fashion as the base plate of the crane’s column, the chemical resin anchors and bolts are then put into place with the column upright in order to secure it in place. The area is then cleared of dust and swarf from the drilling and left for a short time to cure.

The above image shows the column and holes that have been drilled to accommodate the anchors and bolts.

Once the column is secured in place the bolts are tightened making the main structure of the crane stable.

Once the main column is stable the next step begins, fitting the hoist to the swinging arm or jib arm.

Most electric hoists are delivered complete and ready to go, it is really just a simple case of fitting the towing trolley to the arm and hooking the hoist’s top hook through the provided bar on the trolley to secure it in place, the safety catch on the hook should make un-interrupted contact with the hook to ensure it fully closed and is safe to use.

The hoist limits are then set (if applicable) Hoist limits allow the user to set a specific distance or travel point at which the hoist will not pass. For example, if you have a bulky load that could damage the hoist if you lift it too far you can set a limit to stop the hoist from lifting any further than desired. You can also add travel limits if you have electric travel to limit how far horizontally you require the hoist to travel, this prevents any unintentional damage and reduces risk of accidents.

Next, the crane’s mains power supply is fitted, the power cable is usually suspended by a ‘Festoon System’ this is a system of small trolleys that in this case sit directly behind the main towing trolley which the hoist is suspended from, the cable is attached to two of these trolleys to ensure that it is correctly managed and does not bunch up or get tangled when operating your jib crane.

The jib arm is then lifted into place usually using chain blocks, a ‘Genie’ lift or other suitable lifting equipment. Once lowered into place the arm must be suspended to allow the bolts to be fitted which secure the arm in place and allow it to pivot. (the below image shows the bolts before they are fitted).

Once fitted, the bolts are secured into place and the arm is released from any lifting equipment and is now suspended by the main column.

Next, the mains power supply needs to be fed through the main column to the isolator switch that turns the power on and off. The cable is fed through a hole in the column that features a re-enforced grommet eye to prevent any abrasion of the cable.

The below image shows the cable exiting the hole in the lower part of the jib where the isolator is to be installed.

The isolator is then fitted and the crane is wired to the mains ready for testing.

A load test is then carried out at 25% above the stated safe working load. A load cell and test weight is used in combination with a lifting sling to test the jib crane and hoist. Once passed, the crane is commissioned and certified for use.

The above image shows the completed, tested and certified jib crane installed by our fully trained professional engineers.

For more information on Swing Jib Cranes please contact our sales team on 01384 441 235 who will be more than happy to assist with design, installation and any technical issues you have to address.



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