June 26, 2012

Zerk grease fitting tap drill talk

MINDLESS BORING:howto diy, Adding a Zerk grease fitting to sears garden tractor front axle pivot. Drilling and the tapping of the hole to install an automotive type grease fittings to a non greasable joint on the suburban tractor made by roper for sears. I will show you how I made a 1/16" zerk fitting into the pivot bolt, and the drill sizing according to alemite who still makes the zerk type grease fitting for pressure lubrication.
NPT pipe tap s have an amount of taper built into the thread to aid in sealing, though zerk grease fittings may be had with a straight thread using a 1/4x28 nf tap or by using a 1/16x27 npt for the tapered style zerk fitting, and a properly sized drill hole. By drilling a deep hole all the way through the bolt, then cross drilling at the wear points , I now have a greasable joint on my sears suburban garden tractor at the front axle. Watch the video and see tap, drill, zerk, u joint, ball joint, grease gun, lubrication, automotive, = SHARE ROCKNTV1