Single Jacking

[feralmitch]

Can anyone explain the "Old Single Jacking Technique" of having a "throng" on the "Hammer" so one can release their grip on the "Hammer" during their swing to save from giving yourself "Tennis Elbow"?
Mitch in Ca., U.S.A.

[Gypsy Heart]

Grasp the hammer firmly and hit the steel squarely. When collaring (starting) a hole, work deliberately and slowly, placing each blow carefully. Although a drill hole is usually started with a drilling steel, it can also be started by chipping slightly with a pick. In the beginning dust and rock chips are difficult to minimize. Be patient when collaring; a hammering rhythm is much easier to maintain after the hole has been started.

Establish your rhythm as soon as possible. Drilling with a regular rhythm will be more productive than driving the steel with powerful strokes in sporadic bursts of effort. Hard hitting causes you to tire quickly and experience cramping prematurely. It also causes the steel to stick in the hole. Take frequent rests to prevent cramps, and do not ignore signs of fatigue. Let the tools and gravity do the work.

Any rest that can be afforded your 'hammer-holding' hand while single jacking will help conserve your energy. A wrist thong may be attached to the end of the handle to help drill at unusual or difficult angles. The thong is looped around your wrist and lets you rest your grip a moment after each stroke. On the backstoke the fingers may be opened and the grip relaxed, allowing the handle to swing free but restrained from dropping by the thong. At the end of the backstroke the fingers close around the handle to prepare for the next swing.

[rmptr]

Wow Gypsyheart!
That was interesting!

We pretty much just put the jackleg up against the rock face and started drilling...
rmptr

[djui5]

That's great info Gypsy! Thanks for sharing

[bigfish31]

That still sounds like a lot of work!

[Real de Tayopa Tropical Tramp]

Ohio Bigfish: you posted --->

That still sounds like a lot of work!
~~~~~~~~~~~~

You are so right, this is why the Good LORD created women.

"For six days thou shalt rest, on the seventh Gypsy shall go forth and drill"

Don Jose de La Mancha