bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - 220kv ss kirawali agra; repair and complete overhauling of operating mechanism of 33kv isolator; service provider - repair & complete overhauling of operating mechanism of 33kv isolator. the work involves, cutting, bending rectification i.e. pipe & its connecting cl s, lubrication of all moving parts like bush and roller assembly for completion of above work satisfactorily. all the required consumables material shall be in the scope of contractor. latch closing trigger removal of defective roller and re-fixing of new roller, re-assembly of same operating mechanism assembly including all associated work for successful completion of job.1. 33kv tajpur nagriya bi 02 nos.2. 33kv tajpur nagriya li 01 nos.