tender for attending of non operative mechanical problem of 132 kv sf 6 circuit breaker(m/s cgl make ) of 132 kv bus coupler cb no 75 at 220 kv s/s sahibabad under etd-i ghaziabad - rectification of non operative mechanical problem of 132 kv sf-6 circuit breaker (m/s cgl make) of 132 kv bus coupler cb no-75 at 220 kv s/s sahibabad by replacement of ratchet wheel & powl with bearing and closing arm, tripping arm with linkage & driving unit (gear box) catch gear closing, catch gear opening & shock absorber above work involves opening of closing spring coil and associated accessories then removal of damaged closing arm, tripping arm with inkage, spring charging motor, driving unit (gear box) catch gear closing, catch gear opening & shock absorber, alingnment and adjustment of ratchet wheel and associated accessories for proper opening closing, re-fixing of closing spring, coil and other parts with mechanism for proper operation of breakers and work also includes setting the mechanism rod and pole assembly. checking of crm & circuit breaker timing and closing. checking the close/open operation of breaker from remote & local and rectification of wiring fault, if any.