If for some reason you cannot achieve that, the building should be faced out of the wind and help summoned. The emergency winch uses a steel rope follows one of two paths depending upon which door is being closed. The operation requires two people, and takes about 30 minutes. Stay behind the wire fence when you operate the winch Don't fall off the apron Beware of the door locking mechanism which may engage without warning. The rope passes from the winch, through the snatch block, to the eyebolt on the door 2.2 using the winch control buttons, feed out enough rope to reach the left hand door eyebolt via the snatch block.
Rope passes through snatch block at right hand anchor.
2.4 Release the brake on the left hand motor. The release bolt is located towards the rear of the motor. Turn the bolt clockwise by hand until it is felt to contact the brake release arm. Then, with a 19mm wrench, turn it a further 4 turns. The release bolt will be seen to move upwards here.