How to check & charge accumulator bottles for BOP control unit " koomey unit "

Prepare tools: (charging kit, spinners, Nitrogen cylinder “don’t use oxygen) Verify that there is no pressure in bottle manifold, you can confirm by pressure gauge Fill only 200 PSI and observe may be bleeder was damage to not loose Nitrogen Top drive Tds-11sa Rig drilling Assistant mechanic Chief mechanic Interview for rig drilling jobs Guide for fresh graduated Guide for assistant mechanic Drawwork Cat engine Kommey unit BOP Rotary table Crown block Travelling block Dead line anchors