RS Quba Rigging Manual page 12

To lock the pin screw on the knurled nut
Pin undone
Stepping the Mast
1. Remove the mast-gate pin, and ensure that the mast gate is open.
2. Lift the mast, and with the kicker attachment at 90˚ to the open mast gate, place
the base into the mast well, ensuring that the dimple in the bottom of the mast
locates on the raised section in the mast well.
3. Rock the mast forward against the foredeck making sure the lip on the collar is
under the foredeck and rotate the mast 90˚ so that the kicker attachment points
toward the back of the boat, then close the mast gate.
Mast Well
Foredeck
4. Secure the mast gate using the mast-gate pin.
Mast Gate
Mast-Gate Pin