METHOD A

The use of this method is recommended except where it in impracticable to remove the re-rounding equipment after ovality correction and subsequent joint. Position a timber strut and jack (approximately 5 tonnes capacity) inside the spigot at 90º to the major axis. Rubber pads should be placed in position to prevent possible damage to the pipe lining. 

Extend the jack until the major axis has been reduced to the appropriate limit specified in the table shown on page 35. Rotate the whole assembly through 90º and complete the jointing operation with the major axis of the spigot vertical. After jointing, remove the equipment.

METHOD B

The use of this method is recommended only where it would be impracticable to remove the re-rounding equipment described in Method A after ovality correction and subsequent jointing.

Place the equipment around the spigot and of the pipe at a position approximately 450 mm from the pipe end and with the major axis of the spigot vertical.

Tighten the two nuts evenly until the major axis has been reduced to the appropriate limit specified in the table shown on page 35. Complete the jointing operation with the major axis of the spigot vertical. After jointing, remove the tackle.