- After having extended the bushing tubing to the same extension and furthest possible extent, begin to lock the pins positioned on the track shaft into position (Fig. 24-25), on the centring bush
(Fig. 26) and relative lock nuts.
- Insert the lever into the sleeve and the welded bushing into the square tubing (Fig. 27).
- Fix the lever to the tubing tight with locking pin and lock nut (Fig. 28-29).
- Release the operator mechanically with the use of the levers (Fig. 31-32), keeping them pressed down until the correct movement can be confirmed.