tender for 145 kv breaker servicing and overhauling work - reparing and ocerhauling work 2 major overhauling of 145 kv sf-6 cb(cgl make) installed at 132 kv deoband line bay at 220 kv s/s nanuta. work includes overhauling of control block assembly opening latch closing latch, support latch, antipumping assembly. opening cleaning and greasing of motor charging system, replacement of worn out part checking of shock absorber, closing damper etc adjustment of all gap, cleaning and greasing of levers connecting rods, cam.disc cam etc. checking of mechanism assembly for wear and tear, rectification/ repairing of worm out parts. checking of limit switch, power contractors auxuliary contractors for proper functioning. checking and retightening of all electrical connections.checking for gas leakage from copper pipe assembly of gas system.