TM 10-3930-659-34 4-53. ACCUMULATOR MAINTENANCE (Con’t). b. DISASSEMBLY WARNING Nitrogen   pressure   stored   In   accumulator   Is   approximately   500   psi   (3448   kPa). Ensure   that   nitrogen   pressure   is   released   before   disassembling   accumulators. Failure to follow this warning may result in serious injury or death to personnel. NOTE Accumulators are disassembled the same way.  One accumulator is illustrated. 1. Install accumulator (7) in machinist’s vise with vise jaw caps. 2. Remove plug (11) and preformed packing (12) from bottom of accumulator (7).  Discard preformed packing. 3. Install nitrogen accumulator charging kit valve (10) and hose (9) on accumulator (7).  Tighten nut (13). 4. Slowly open nitrogen accumulator charging kit valve (10) and fully release pressure from accumulator (7). 5. Remove nitrogen accumulator charging kit valve (10) and hose (9) from accumulator (7). 6. Remove snapring (17), gas end cap (16), backup ring (15), and preformed packing (14) from bottom of accumulator (7).  Discard preformed packing. 4-196