There are 2 support hooks that tighten low down pulling the wheel station in and hold to the main structure. Also 2 support pivots 2 foot above with manual clamps. So by unwinding the bottom hooks and releasing the top clamps the wheel station wont move till the support legs are wound down together. thus taking the weight of the radar platform and releasing the bottom hooks which pivot and release the wheels. A support bar 6 foot long needs sliding into the designated holes to give movement. Its a well balanced unit and the wheels move quite easy.
Its still a learning curve, voyage of discovery but very enjoyable.
The radar as a whole is in good condition, being released from the army to a museum but sat outside. It has come with 4 new in wooden boxes the dustbin sized operating electronic controls and lots of relays, some still labelled signed and dated 1975.
Its a lost era of our history, manufacturing, i believe the radar was accurate to 2 foot which in 1961 was great following a projectile 3" diameter and 8" long.