Did you engage the nipple correctly. It should give a slight click as the nozzle fits over the nipple. If the suspension has been greased properly before, then 3 pumps should be more than enough. You have to make sure that no grease comes into contact with the disc brakes.
Neil
Before you do what Neil suggests, it is worth checking that the spring-loaded ball valve at the tip of the nipple is not stuck. A gentle prod with a small Posidrive screwdriver will free it.
Also make sure that the nozzle of the grease gun is square on to the nipple.
Bud
