bids are invited for repair and overhauling service - reapir; defect rectification of port and stbd da ( make: caterpillar, model: c4 4); no; buyer premises defect rectification of port da and stbd da onboard icgs c-450 -4 port da (make: caterpillar, model: c4.4) shutting down intermittently. lop display showing overspeed trip alarm. suspect deif controller circuit malfunctioning. defect to be rectified and system to be proved for satisfactory operation. e-4 while starting stbd da (make: caterpillar, model: c4.4) getting shutdown intermittently. lop display showing the alarms of lub oil pressure and lub oil shutdown. suspect lub oil pressure sensor discharge pipe line blocked. defect to be rectified and system to be proved for satisfactory operation. total quantity :