The Stability of 4 Legs vs 3 Legs
Which is more stable- a 4 leg bar stool or 3 leg? You can ask the same question about a 4 leg or 3 leg bridle sling.
The Stability Challenge
How about the use of 4 machine skates versus load equalizing dollies? For example, if a load is being off-loaded by means of a crane, your team must calculate and locate the precise off-set center of gravity. Whether it’s stools, slings, or load equalizing dollies, the reality is that the weight is often distributed unevenly when a load is applied.
The Stable Solution
Most of the time, the 3 leg option will ensure stronger stability. There are rare exceptions to this, but it is essential to consider this rule of thumb in order to prevent workplace mishaps.
A good practice to consider would be to set the unit on cribbing or blocks first, then utilize jacks to lift and lower on your transporters.
This may take a few more steps, but if the long run, it increases your safety culture and will save against costly damage to both load and transport equipment.