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Maintain correct fork spacing for load
These two pictures both show forks set incorrectly. The right-hand picture has the forks too close together which will result in the pallet becoming unstable and the left-hand picture shows the forks set too far apart which could cause the pallet to bow or break if there was a point contact load in the centre.
The forks should be positioned so that the load is evenly distributed. Other types of load, for example a metal stillage, may have the forks set wider as there is enough strength in the bottom to prevent damage.