Northfix Pump Action Cleat Unique design cleats when rope is lifted releases when rope is flat on the deck Used for pump action halyard systems on 470 Fireball and many other dinghy classes A unique hardtofind pivoting cleat that allows the line to run freely until it is pulled out of alignment Frequently used for spinnaker halyard pumpup systems The halyard exits the mast goes through a cam cleat and usually a fairlead Then there is some space before the halyard runs through the pump cleat On the line in this space there is a trap handle on a block which you hold to pump The tail of the halyard then continues through a fairlead or cheek block and is taken up by shock cord As you pump the handle the pumpcleat goes out of alignment holding the tail and causes the halyard to take up through the cam cleat As you lower the handle the pump cleat aligns again allowing the shock cord to take up the tail through the pump cleat readying the system for another pump if needed